At its lowest point, a pendulum is moving at 7.77 m/s. What is its velocity in m/s after it has risen 1.00 m above the lowest point
Answers
The velocity can have both positive and negative directions, the velocity after rising 1.00 m above the lowest point can be either +4.43 m/s or -4.43 m/s.
To determine the velocity of the pendulum after it has risen 1.00 m above its lowest point, we can use the principle of conservation of mechanical energy.
The conservation of mechanical energy states that the total mechanical energy of a system remains constant if no external forces are acting on it. In the case of a pendulum, the mechanical energy consists of potential energy (due to its height) and kinetic energy (due to its motion).
At the lowest point, all the potential energy is converted into kinetic energy, so we can equate the potential energy at the highest point to the kinetic energy at the lowest point:
Potential energy at highest point = Kinetic energy at lowest point
m * g * h = (1/2) * m * v^2
Where:
m is the mass of the pendulum (assumed to be negligible)
g is the acceleration due to gravity (9.8 m/s^2)
h is the height above the lowest point (1.00 m)
v is the velocity at the lowest point (7.77 m/s)
Substituting the given values, we can solve for the velocity after rising 1.00 m above the lowest point:
(1/2) * v^2 = g * h
(1/2) * v^2 = 9.8 m/s^2 * 1.00 m
v^2 = 19.6 m^2/s^2
v ≈ ±4.43 m/s
Since the velocity can have both positive and negative directions, the velocity after rising 1.00 m above the lowest point can be either +4.43 m/s or -4.43 m/s.
The positive sign indicates the direction of the velocity when the pendulum is moving downward, and the negative sign indicates the direction when the pendulum is moving upward.
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Related Questions
PLEASE HELP
The most distant objects in the Universe known to
astronomers are 14 billion ly away. Convert this value
to metres.
Answers
Answer:
I'm in ninth grade, but-
Explanation:
According to my calculator
14 billion light years = 1.32450227 x 1026 meters?
Sorry if this doesn't help:(
have a good night
why does the green colour of iron (ii) chloride change to yellow when chlorine gas is bubbled into it
Answers
Answer:
FeCl2 has a high melting point.
Explanation:
Iron is seen to get oxidized by addition of chlorine 3 as the product is rust colored and on dissolving in water has a yellow orange color. This is characterized by the aquatic iron and is due to the monohydroxy2. What type of signals does the nervous system send? What carries these signals
Answers
Answer:
Nervous system messages travel through neurons as electrical signals. When these signals reach the end of a neuron, they stimulate the release of chemicals called neurotransmitters. Neurotransmitters travel across synapses, spaces between neurons or between neurons and other body tissues and cells.
Explanation:
Calculate the TOTAL mechanical energy of pendulum is it swings from his highest point to its lowest point. Pendulum mass is 4 kg. Use your equations for gravitational potential energy and kinetic energy to determine these values based on the data given below. Total energy is the sum of gravitational potential energy and kinetic energy. In this problem, round gravity to: g = 10 m/s^2.
Answers
Answer:
its should be 2.0 and 4.5 on it
give answer or fight me
Answers
Answer:
translucent
Explanation:
Hope this helps! Pls give brainliest! Also, please sub to Kgirl633 on yt.
Think of the balloon and sweater. For one object (like the balloon) to become negative it means another object (like the sweater) must become equally what?
friction
induction
conduction
Answers
Answer:
According to the only context given, the correct answer is induction.
(FOR SCIENCE)fill in the blank with the words ok the top!!!!!
Answers
Question 1 is alike for first blank and increases for second
the 30-kg pipe is supported at a by a system of five cords. determine the force in each cord for equilibrium.
Answers
Force in each cord for equilibrium is T_A = 42.2 N, T_B = 20.0 N, T_C = 10.0 N, T_D = 6.7 N, and T_E = 5.0 N.
The force in each cord supporting a 30-kg pipe, we can apply the principles of static equilibrium. Static equilibrium occurs when the net force and net torque on an object are both zero.
In this case, the pipe is being supported by five cords. Let's label the cords A, B, C, D, and E. Since the pipe is not accelerating, the net force on the pipe must be zero. This means that the total upward force provided by the cords must balance the downward force of the weight of the pipe.
To calculate the force in each cord, we can use the principle of the conservation of momentum. Assuming the pipe is stationary, we know that the momentum of the system is constant, and we can apply the principle of moments to determine the tension in each cord. We can take moments about point A, where cord A is attached.
Let T_A, T_B, T_C, T_D, and T_E be the tension forces in cords A, B, C, D, and E, respectively. By taking moments about point A, we have:
T_B * 3 + T_C * 6 + T_D * 9 + T_E * 12 = 30 * g * 3
where g : acceleration due to gravity. Since the pipe is in equilibrium, the sum of the tension forces in the cords must also be equal to the weight of the pipe, or:
T_A + T_B + T_C + T_D + T_E = 30 * g
We now have two equations and two unknowns, T_A and T_B. Solving these equations simultaneously, we obtain:
T_A = 42.2 N
T_B = 20.0 N
T_C = 10.0 N
T_D = 6.7 N
T_E = 5.0 N
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Above sea level, water boils at _____ temperature due to the ____ atmospheric pressure.
a. higher, increased
b. lower, decreased
c. Higher, decreased
d. lower, increased
atmospheric pressure.
Answers
Above sea level, water boils at lower temperature due to the decreased atmospheric pressure.
What happens to pressure above sea level?Air pressure decreases as altitude increases. In other words, low air pressure indicates a high apparent height.
The pressure of the water pressing down on you increases as you go more beneath the surface of the ocean. The pressure rises by one atmosphere for every 33 feet (10.06 meters) you descend. High pressure poses no problems at all for many marine animals.
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PLZZZZ HELP QUICK . 30 points. Emma weighs 560 N, she has decided to stay in shape so she is working out every morning, This morning she ran and lifted weight! 1. Calculate Emma's mass ( Gravity g= 9.8 N/kg). 2. If she ran 350 meters in 65 seconds, what was her velocity? 3. When she lifted weights, she exerted a 35 N to lift one of the weight 2 meters over the ground, what is the amount of work she performed? Note that units are important, so do not give any number without a unit to avoid losing points.
Answers
Force equals mass time acceleration. Weight is a force and it can replace force in the equation. The acceleration would be gravity, which is an acceleration.
1.)
Fw (weight) = m (mass) · g (gravity, 9.8 m/s²)
Fw = m * 9.81 m/s²
560N = m · 9.81 m/s²
m ≈ 57.08 kg
2.)
d = 350 meters
t = 65 seconds
velocity = d/t
velocity = 350 meters / 65 seconds
velocity ≈ 5.38 meters/sec
3.)
Force = 35N
Distance = 2 meters
Work = Force · Distance
Work = 35N · 2 meters
Work = 70 J
The speed of light is 300,000,000 m/s. Red light has a wavelength of 0.0000007 m. What is its frequency?
Answers
Answer:
2.33..
Explanation:
f = wavelength/speed
= 0.0000007/300000000
= 2.333...
a. Besides protons, what other particles make up an atom? Write 2 - 3 sentences identifying the attractive force acts between a proton and each of these other particles.
b. Identify the element whose atoms have 11 protons. It is a metal, nonmetal, or metalloid? Write 1 - 2 sentences describing how an atom of this element changes when it forms an ionic bond.
Answers
Electric force is present between proton and electron of an atom.
What is the attractive force present between a proton and electron?The attractive force between the electrons and the proton of the nucleus is called the electric force. This force attract electron towards the nucleus so that it can't escape from the atom easily so this force is very important for the atom.
How an atom of this element changes when it forms an ionic bond?An atom of this element changes when it forms an ionic bond because the number of electron decreases due to losing of electron in order to get stability. We know that ionic bond forms between atoms when electron is lost or gain by the atom.
So we can conclude that electric force is present between proton and electron of an atom.
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Which claim explains what happens a transform tectonic plate boundary
Answers
Answer:
Two tectonic plates move horizontally past one another along Earth’s surface, forming long fault lines.
Answer:
Plates move apart
Explanation:
At a transform boundary, plates move apart. At a divergent boundary, plates separate. Convection currents in the mantle contribute to tectonic plate movement.
at first quarter it is approximately ________ week(s) until the new moon.
Answers
At first quarter, it is approximately 1 week until the new moon.
What is the first quarter? The first quarter is the phase of the moon that occurs after the waxing crescent phase and before the waxing gibbous phase. The first quarter phase is seen when the Moon has completed 50% of its orbit around the Earth, which is seven days after the new moon phase.
In general, the lunar cycle is divided into 8 stages: New Moon, Waxing Crescent, First Quarter, Waxing Gibbous, Full Moon, Waning Gibbous, Third Quarter, and Waning Crescent. A new moon is the initial phase of the moon, when it appears completely black and there is no light coming from it.
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The length and breadth of rectangular sheet of metal are 4.234m, 1.005,
and 2.01cm respectively.
Give the area and volume of sheet to correct significant figures..
Answers
Answer:
The area of the sheet of metal = 4.255 m²
The volume of the sheet of metal = 0.08553 m³
Explanation:
The area of a rectangle is given by the following relation;
Area, A = Length × Breadth
Therefore, the area of the rectangular sheet of metal, A\(_m\), is given as follows;
A\(_m\) = 4.234 m × 1.005 m = 4.255 m²
The area of the sheet of metal = 4.255 m²
The volume of the metal sheet id given by the relation, volume V\(_m\)= area × Thickness
The thickness of the sheet of metal = 2.01 cm = 0.0201 m
Therefore,
V\(_m\) = 4.255 m × 0.0201 m = 0.08553 m³
The volume of the sheet of metal = 0.08553 m³.
Answer:
Are yarr mei bhi Indian hu.....
Explanation:
Tumse milkar accha laga
NEED HELP!!! IF YOU ANSWER ALL QUESTIONS I WILL GIVE YOU BRAINEST!!!!! 15 POINTS!!!!
1. Alana wants to add some eccentric exercise to her routine. She has heard that pull ups are good, but she does not have a lot of upper body strength and thinks that is going to be too challenging. She wonders if she can start by just hanging on at the top with her chin above the bar and holding that pose to get the benefits. What is the BEST response to Alana?
A.
Any activity that works the arms is eccentric exercise.
B.
That might build strength, but it is not eccentric exercise.
C.
She will get all of the benefits because grasping the bar key.
D.
She needs to do something else as pull-ups are not eccentric exercise.
2. Trina has a family history of thyroid issues, and it has caused many of her family members to gain weight, which is a common side effect. She is worried that she may develop thyroid problems one day but does not think that exercise will help since it is a gland, not a muscle. She thinks that this means that it cannot be targeted and strengthened. What is the BEST response to Trina?
A.
Isometric exercises strengthen the thyroid gland.
B.
If a condition runs in her family, she will get it no matter what.
C.
There is very little that she can do to improve the health of her thyroid.
D.
It cannot be specifically targeted, but exercise will help it function better.
3. Amari has been exercising regularly and she is really starting to feel the benefits. Overall, she has more energy and just feels better about herself. She has started volunteering for things that she otherwise would have been too shy to do. Could this newfound confidence be a result of her good habits?
A.
Yes, she looks better, so she feels better.
B.
Yes, she is producing more testosterone.
C.
No, she has probably just matured a little.
D.
No, exercise does not have psychological effects.
PLEASE NO LINKS
Answers
Answer:
1.A
2 .B
3 A
Explanation:
1.A eccentric excercises works the arms
2.B- if a condition runs in her family there are possibilities that she'll get it because it runs in the genes of her family
A student completes a PET experiment using chloroplasts from leaves lacking pigments that absorb in the 550 nm to 600 nm wavelength range. Which color of light should they avoid in their experiment if they want to measure activity at different wavelengths? Absorbance 360 760 460560660 Wavelength (nm) O Blue O Orange O Yellow O Red O Violet Light Absorption Spectrum of Spinach Extract
Answers
The student should avoid using yellow light if they want to measure activity at different wavelengths.
Yellow light should not be used since it lacks the pigment necessary to absorb wavelengths between 550 and 580 that will cause it to be completely ineffective.
Color Wavelength (nm)
Red 650 - 800
Orange 590 - 640
Yellow 550 - 580
Blue 460 - 480
Indigo 440 - 450
Violet 390 - 430
In physics, a periodic wave's wavelength is the length over which its form repeats. It is a characteristic of other spatial wave patterns as well as traveling and standing waves.
It is the separation between two consecutive positions on a wave that correspond to the same phase, such as two close-by crests, troughs, or zero crossings. The reciprocal of wavelength is the spatial frequency. Wavelength is usually denoted by the Greek letter lambda ().
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A family took a trip in a car traveling East from Greensboro to Wilmington, NC. Use the Graph to answer the questions below.
1: Calculate the average speed of the trip.
2: What was the average velocity of the car?
Note: Please don't put weird stuff or completely off-topic stuff, I really need help for this homework! Thanks!
Answers
Answer:
1). Average speed = 1.5 m per second
2). Average velocity = 1.5 m per second
Explanation:
1). Since, speed is a scalar quantity
Therefore, average speed of the trip = \(\frac{\text{Total distance covered}}{\text{Total time taken}}\)
From the graph attached,
Total distance covered = 10 + 10 + 20 + 0 + 20 + 30
= 90 meters
Total time taken = 60 seconds
Average speed = \(\frac{90}{60}\)
= 1.5 meter per second
2). Velocity is a vector quantity.
Therefore, average velocity = \(\frac{\triangle d}{\triangle t}\)
= \(\frac{d_{60}-d_0}{60-0}\)
= \(\frac{90-0}{60-0}\)
= 1.5 meter per second
If the mean of 6, 7,.x, 13 and 10 is 8, find range.
Answers
Answer:
Range = 9
Explanation:
From the question,
Mean = summation data/Total frequency
Mean = (6+7+x+13+10)/5
If the mean is 8,
8 = (36+x)/5
Solve for x
36+x = 8×5
36+x = 40
x = 40-36
x = 4.
Range is the difference between the biggest and the smallest value in a given distribution.
from the above,
Range = 13-4
Range = 9
A 1500-kg vehicle travels at a constant speed of 22 m/s around a circular track that has a radius of 85 m.
What is the average velocity of the vehicle during one revolution?
Answers
When an object travels in a circle, it experiences a centripetal force which is directed towards the center of the circle. This force is given by:
F = m * v^2 / r
where F is the centripetal force, m is the mass of the object, v is its speed, and r is the radius of the circular path.
In this case, the mass of the vehicle is 1500 kg, the speed is 22 m/s, and the radius of the circle is 85 m. Plugging these values into the equation above, we get:
F = 1500 kg * (22 m/s)^2 / 85 m = 906.35 N
So, the centripetal force acting on the vehicle is 906.35 N.
The direction of the centripetal force is towards the center of the circle, which provides the necessary force to keep the vehicle moving in a circular path.
In conclusion, when a 1500-kg vehicle travels at a constant speed of 22 m/s around a circular track that has a radius of 85 m, it experiences a centripetal force of 906.35 N, which is directed towards the center of the circular path. This force is necessary to maintain the circular motion of the vehicle and prevents it from moving in a straight line.
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I need help with this question someone
Answers
The properties of group 18 elements, also referred to as noble gases or group 8 elements.
Eight valence electrons make them up.
They have enough electrons in their octet, therefore they don't need any more (stable).
are steady
Noble gases are those that are not reactive.
Why do elements desire to create ions?In order to gain or lose valence electrons to the element they interact with, elements create ions. They acquire a whole octet as a result. You might be wondering what a whole octet is. When an element contains all 8 valence electrons and is stable, it is said to have an octet, rendering it nonreactive.
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An example of the energy transformation of mechanical energy to electrical energy is
А
fire
B
generator
C
bomb
D
toaster
Answers
Answer:
generator
Explanation:
motor running to electrical
Using the image below, figure out the kinetic energy of each vehicle. Formula, Ke=1/2mxv^2
Answers
The kinetic energy of the truck is approximately 1,964,180 Joules. The kinetic energy of the car is approximately 250,003 Joules.
How to determine kinetic energy?To calculate the kinetic energy of each vehicle, use the formula:
Kinetic Energy (KE) = 1/2 × mass × velocity²
Given the mass and velocity of each vehicle, plug in the values and calculate the kinetic energy.
For the truck:
Mass = 6,000 kg
Velocity = 92 km/h
= 92,000 m/3600 s
≈ 25.56 m/s
Using the formula:
KE = 1/2 × 6,000 kg × (25.56 m/s)²
Calculating the result:
KE = 1/2 × 6,000 kg × 655.3936 m²/s²
KE ≈ 1,964,180 Joules
Therefore, the kinetic energy of the truck is approximately 1,964,180 Joules.
For the car:
Mass = 1,200 kg
Velocity = 100 km/h
= 100,000 m/3600 s
≈ 27.78 m/s
Using the formula:
KE = 1/2 × 1,200 kg × (27.78 m/s)²
Calculating the result:
KE = 1/2 × 1,200 kg × 771.6884 m²/s²
KE ≈ 250,003 Joules
Therefore, the kinetic energy of the car is approximately 250,003 Joules.
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which of these is an example of a description of speed?
a. An airplane traveled west from New York to Los Angeles
b. An apple fell from the three and then rolled 1-meter north
c. The average Olympic sprinter runs 8 m/s
d. A train traveled east at 200 mph from Albuquerque to Dallas
Answers
The answer is d cause it says that train travel 200 meters per hour
what is the name of the outer rigid layer of a planet?
Answers
Answer:
The crust is the outer rigid layer of a planet
Answer:
The lithosphere
Explanation:
calculate the magnitude of the electric field intensity in vacuum at a distance of 20 cm from a charge of 5 * 10 raise to power - 3 column
Answers
Answer:
1.1259*10^9 Newton per Columb
Explanation:
the magnitude of the electric field intensity can be calculated using the expresion below;
E=Kq/r^2
Where k= constant
q= electric charge
r=distance= 2cm= 20*10^-2m( we convert to m for unit consistency
:,K=59*10^9 Columb
If we substitute the value into above formula we have
E=(9*10^9)*(5*10^-3)/(20*10^-2)^2
=1.1259*10^9 Newton per Columb
Therefore,the magnitude of the electric field intensity in vacuum at a distance of 20 cm is 1.1259*10^9 Newton per Columb
astronauts appear weightless while working in the international space station because
Answers
cause there's no gravity therefore they appear weightless
Calculate the repulsion force between the two Arkon nuclei when the distance between them is 1x10-3μm (note that the Arkon nucleus contains 18 protons) (The electric charge of one electron is 1.6x10-19C) a. 7.4x10-8N
b. 2.7X10-30N c. 7.4X10-20N d. 7.4x10-14N
Answers
The repulsion force between the two Arkon nuclei when the distance between them is 1x10⁻³μm is approximately 7.4x10⁻¹⁴N. The correct option is d. 7.4x10⁻¹⁴N.
The formula for repulsion force between two Arkon nuclei when the distance between them is given by Coulomb's law. Coulomb's law states that the force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Mathematically, the law can be expressed as F=kq1q2/r²,
Where F is the force, q1 and q2 are the charges, r is the distance between the charges, and k is the Coulomb's constant.The electric charge of one electron is 1.6x10⁻¹⁹C.
Therefore, the charge of the Arkon nucleus with 18 protons = 18(1.6x10⁻¹⁹) C = 2.88x10⁻₈⁸ CThe force between the two Arkon nuclei can be calculated using the formula above.
F=kq1q2/r²
Substituting the values we have;F = (9x10⁹)(2.88x10⁻¹⁸ C)2/(1x10⁻³ m)2F ≈ 7.4x10⁻¹⁴ N. Therefore, the repulsion force between the two Arkon nuclei when the distance between them is 1x10-3μm is approximately 7.4x10⁻¹⁴N. The correct option is d. 7.4x10⁻¹⁴N.
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the blade of an electric saw rotates at 2800 rev/min. assume that the diameter of a typical saw that is used to saw boards in home construction and renovation is 18 cm. part a what is the linear speed in m/s of a point on the rim of the circular saw blade?
Answers
Angular speed of the blade that the table saw,
ω = 2800 rev/min = 293.2
Diameter = 18 cm = 0.18 m
Radius = 0.09
To find linear velocity,
V = r X ω
V = 0.09 X 293.2
V = 26.38 m/s
Convert to mph
V = 58.8 mph
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Which vector below goes from (0, 0) to (-2, 3)?
Answers
