jessica took a mylar balloon outside on a very hot day. as she waited for the bus the balloon began to get bigger. what is the best explanation of this?
a) as the particles became warmer, they lost energy and moved more, resulting in less pressure on the balloon.
b) as the particles became warmer, they gained energy and moved more, resulting in less pressure on the balloon.
c) as the particles became warmer, they lost energy and moved more, resulting in more pressure on the balloon.
eliminate
d) as the particles became warmer, they gained energy and moved more, resulting in more pressure on the balloon.

To determine the magnitude of the force exerted by each of the links A and B, we can use the principle of conservation of energy.

The force applied to the upper block creates a gravitational potential energy (mgh) which will be converted into kinetic energy (1/2mv^2) of the blocks when they start moving.

The initial potential energy of the system is:

Ui = m1gh1 + m2gh2 + m3gh3

The final kinetic energy of the system is:

Uf = (1/2)m1v1^2 + (1/2)m2v2^2

Since the net force on the system is zero and there is no external force acting on it,

Ui = Uf

Where:

m1= 5.0 kg (mass of upper block)

m2= 4.0 kg (mass of lower block)

m3= 0.6 kg (mass of rod)

g = 9.8 m/s^2 (acceleration due to gravity)

v1 = velocity of upper block

v2 = velocity of lower block

The force exerted by link A is the force exerted on the upper block by link A and the force exerted by link B is the force exerted on the lower block by link B.

F(A) = m1a = m1g = 5.0 kg * 9.8 m/s^2 = 49 N

F(B) = m2a = m2g = 4.0 kg * 9.8 m/s^2 = 39.2 N

So the force exerted by link A is 49 N, and the force exerted by link B is 39.2 N.

¡Hello!

Topic: Electrostatic

For calculate electric force, we can apllicate formula:

                                                \(\boxed{\boxed{\bold{F = k * \frac{q*q'}{r^{2} } } } }\)

\(\sqrt{\) F = Electric Force

\(\sqrt{\) k = Coulomb Constant = 9x10^9

\(\sqrt{\) q = Charges = 1 C

\(\sqrt{\) r = Distance = 3000 m

Let's replace according the information, and let's resolve it:

F = 9x10^9 * (1 * 1) / 3000²

F = 9x10^9 * 1 / 9000000

F = 9x10^9 * 1.1111111e-7

F = 1000 N

Result:

The electric force is of 1000 N

Good luck

An object that's thrown horizontally off a cliff and allowed to fall. This object exhibits two-dimensional motion because it has both horizontal and vertical components of motion. The correct answer is A.

The horizontal component is due to the initial velocity when it is thrown horizontally off the cliff, while the vertical component is due to the gravitational force pulling it downward. The object's motion in the horizontal direction remains constant and unaffected by gravity, while its motion in the vertical direction is determined by the force of gravity. In contrast, objects described in B, C, and D exhibit primarily one-dimensional motion, either purely vertical or purely horizontal, without simultaneous motion in both directions. Therefore the correct answer is A.

To know more about two-dimensional motion, here

brainly.com/question/28012346

#SPJ4

Answer:

It's actually C. food webs

Explanation:

took the test

Answer: c

Explanation:

edge 2020

Answer:

If I remember right I believe it's radio waves

High-mass stars are so luminous that their radiation strips gas from the outer layers and driving it into space whereas high-mass stars achieve much hotter temperatures in their cores and interior layers

Low mass stars are cooler and are reddish in color. High mass stars are hotter, and are white or blue white in color. Extremely high mass stars may also shine as a pale violet, which is more blue than blue white. High mass stars are brighter compared to low mass stars, because they produce more energy.

A low mass star is less than three solar masses whereas high mass star is above eight solar masses.

To know more about low mass and high mass stars, refer

https://brainly.com/question/27805761

#SPJ4

Linear mass density and tension are the two factors on which the speed of the transverse waves on a string depends.

The square root of the linear mass density determines the speed of a wave on a string, with larger speeds occurring when the linear mass density is lower.

The linear density divided by the square root of the tension determines the wave's speed on a taut string.

The qualities of the medium affect a wave's speed. For instance, the sound of a guitar is created by the vibration of the strings. The wavelength and wave speed on the strings influence the frequency of the sound that is produced. A guitar's strings can be composed of materials that are similar in composition but varied in thickness.

To learn more about the speed of a transverse wave please visit-
https://brainly.com/question/13863548
#SPJ9

Answer:

The measurement of an object's motion with respect to any other object that is moving or stationary is called Relative Motion.

Inferring the maximum mass and lower mass gap of neutron stars in neutron star-black hole systems with spin is a challenging astrophysics task. Researchers use equations of state, observational data, and theoretical models to estimate the upper limit of a star's mass without collapsing into a black hole. Spin affects the system's dynamics, stability, and the emission of gravitational waves. This area of research is an active area of study.

Inferring the maximum mass and lower mass gap of neutron stars in neutron star-black hole systems with spin is a challenging task in astrophysics. However, scientists have made progress in understanding these properties through various theoretical and observational studies.

To determine the maximum mass of a neutron star, researchers study the equations of state, which describe the relationship between the pressure, density, and energy within a neutron star. By considering different equations of state, scientists can estimate the upper limit of the mass that a neutron star can attain without collapsing into a black hole. These estimates typically range from around 2 to 3 times the mass of our Sun.

The lower mass gap in neutron star-black hole systems refers to the minimum mass of a black hole that can form through the collapse of a massive star. This lower limit is thought to be around 2.5 to 5 times the mass of our Sun. When a star's mass exceeds this lower limit, it is expected to undergo gravitational collapse and form a black hole.

The presence of spin in neutron star-black hole systems adds complexity to the calculations. Spin affects the dynamics and stability of the system, influencing the mass transfer and orbital evolution between the two objects. It can also lead to the emission of gravitational waves, which can provide valuable information about the system's properties.

To infer the neutron star maximum mass and lower mass gap in neutron star-black hole systems with spin, scientists rely on observations of binary systems that contain a neutron star and a black hole. By analyzing the orbital parameters, such as the period and mass transfer rate, and comparing them with theoretical models, researchers can estimate the masses and other properties of the objects involved.

In conclusion, inferring the neutron star maximum mass and lower mass gap in neutron star-black hole systems with spin involves studying the equations of state, analyzing observational data from binary systems, and comparing theoretical models. The complex interplay between spin, mass transfer, and orbital dynamics makes this an active area of research in astrophysics.
To know more about  neutron star-black hole system Visit:

https://brainly.com/question/29358423

#SPJ11

The component form of the velocity of the airplane, assuming that the positive x-axis represents due east and the positive y axis represents due north is (-782.79, 271.16) km/hr.

Given that the airplane is traveling in the direction 20 degrees west of north at 800 km/hr. To find the component form of the velocity of the airplane, we assume that the positive x-axis represents due east, and the positive y-axis represents due north.Let the velocity of the airplane be V and the angle between the direction of the airplane and due north be θ.θ = 20° west of north = 90 - 20 = 70° north of the west.Then the component form of the velocity of the airplane, V = (Vx, Vy) km/hr is given by:Vx = V cos θ = 800 cos 70° = 800 × 0.3420 = 273.60 km/hr (approx)Vy = V sin θ = 800 sin 70° = 800 × 0.9397 = 751.75 km/hr (approx)Therefore, the component form of the velocity of the airplane is (-273.60, 751.75) km/hr, assuming that the positive x-axis represents due east and the positive y-axis represents due north.To represent the direction in which the airplane is traveling, we use the direction angles, α and β.The angle α, between the direction of the airplane and the positive x-axis, is given by:α = tan⁻¹(Vy/Vx) = tan⁻¹(-751.75/273.60) = 106.33° (approx)The angle β, between the direction of the airplane and the positive y-axis, is given by:β = tan⁻¹(Vx/Vy) = tan⁻¹(273.60/751.75) = 19.28° (approx)Hence, the direction of the airplane is 19.28° east of north, or 70.72° north of the east.

The component form of the velocity of the airplane is (-273.60, 751.75) km/hr, assuming that the positive x-axis represents due east and the positive y-axis represents due north. The direction of the airplane is 19.28° east of north, or 70.72° north of the east.

To know more about velocity visit:

brainly.com/question/13097323

#SPJ11

Answer:

(TRUE) Mars seems to pass the fastest, Jupiter next, and Saturn the slowest. But all exhibit that puzzling quirk--near the point of their celestial course precisely opposite the Sun ("opposition"), their action amongst the stars briefly turns around.

Explanation:

Mars: 24.077 km/s (53,853 miles per

hour), or a period of about 686.93 days.

Answer:is true

Explanation:

Convex lens of focal length 30cm combined with concave lens of focal length 15 cm. The combined focal length is 20 cm. The power of a lens is defined as the reciprocal of the focal length of a lens in meters which is, P = 5 D (diopters). The combination of convex and concave lenses will act like a convex lens.

To find the combined focal length, power, and nature of the combination of a convex lens of focal length 30 cm combined with a concave lens of focal length 15 cm, follow the steps below:

Combined focal length:

Use the lens formula for the convex and concave lenses and the given values.

Focal length (f) = 30 cm for the convex lens

Focal length (f) = -15 cm for the concave lens

Using the lens formula:

1/f = 1/v - 1/u

1/f = (v - u) / uv

v = focal length of the combination of lenses

u = object distance

For the combination of lenses:

u = object distance

v1 = distance from object to the concave lens

v2 = distance from the concave lens to the convex lens

v = distance from the convex lens to the image

Given:

f1 = focal length of convex lens = 30 cm

f2 = focal length of concave lens = -15 cm

v1 = -f2 = -(-15) = 15 cm

By combining the convex and concave lenses, the final image will be formed on the same side as the object. Thus, the sign convention for u and v will be positive. Therefore, using the lens formula, the value of v will be given by:

1/f = 1/v - 1/u

1/f = (v - u) / uv

v = 1/f1u + 1/f2

v = 1/30(0.5) + 1/(-15)(0.5) + 0.5

v = -6 cm

The combined focal length is the distance between the optical center and the focal point of the lens system. It is calculated as follows:

1/F = 1/f1 + 1/f2 - (d / (f1f2))

F = 20 cm (approximately)

Therefore, the combined focal length is 20 cm.

Power of the combination:

The power of a lens is defined as the reciprocal of the focal length of a lens in meters.

P = 1/f = 1/0.2

P = 5 D (diopters)

Nature of the combination:

Since the focal length of the combined lenses is positive, the combination is a convex lens. Therefore, the combination of convex and concave lenses will act like a convex lens.

For more such questions on Convex lens, click on:

https://brainly.com/question/28039799

#SPJ8

Answer:

1961 kJ

Explanation:

Since the mass of each substance is 1 kg, the heat required to change a substance at is boiling point is its latent heat of vapourization, L. For a given mass, m, the quantity of heat Q = mL

For liquid water, m = 1 kg and L = 2256 kJ/kg.

So, quantity of heat required is thus Q₁ = 1 kg × 2256 kJ/kg = 2256 kJ

For liquid mercury, m = 1 kg and L = 295 kJ/kg.

So, quantity of heat required is thus Q₂ = 1 kg × 295 kJ/kg = 295 kJ

The amount their thermal energies differ is thus Q₁ - Q₂ = 2256 kJ - 295 kJ = 1961 kJ

Answer: x=6

Explanation:

The value of a78 is approximately 2840.8.

To find the value of x in the equation, we first need to combine the like terms and set the expression equal to zero. Then, we can solve for x.

The given equation is:

6x - 14210x + 5a78x = 0

Combine the x terms:

(6 - 14210 + 5a78)x = 0

Now, for the equation to be true, the coefficient of x must be zero. Therefore:

6 - 14210 + 5a78 = 0

Solve for a78:

5a78 = 14210 - 6

5a78 = 14204

Now, solve for a78:

a78 = 14204 / 5

a78 = 2840.8

So, the value of a78 is approximately 2840.8.

To know more about coefficient

https://brainly.com/question/29719172

#SPJ2

Option C: 0.115 is the correct option.

The correct error between the thread plug gauge pitch diameter and the micrometer measurement is 0.115 mm.

Explanation:

In order to determine the correct error between the thread plug gauge pitch diameter and the micrometer measurement, we first need to calculate the difference between the two.

This will give us the error.

The formula we will use is:

Error = |Pitch Diameter - Micrometer Measurement|

Given that:

             Pitch Diameter = 22.35 mm

             Micrometer Measurement = 22.235 mm

Substituting the values, we get:

              Error = |22.35 - 22.235|

              Error = 0.115 mm

Therefore, the correct error is 0.115 mm.

Option C: 0.115 is the correct option. The correct error between the thread plug gauge pitch diameter and the micrometer measurement is 0.115 mm.

To know more about micrometer measurement, visit:

https://brainly.com/question/29429877

#SPJ11

Answer:

120 Newtons

Explanation:

m = 20 kg

a = 6 m/s

F = ?

F = m x a

F = 20 x 6

F = 120 Newtons

Answer:

The answer is . A 46.2g

Answer:

x = x0 + v0 t + 1/2 a t^2

The question asks for distance traveled in 1 sec

x0 = 0

v0 = 0

This leaves

x = 1/2 a t^2

x = 1/2 * 9.8 /s^2 * 1 s^2 = 4.9 m

The balloon will fall 4.9 m in the first second.

The possible magnitude for the force of static friction on the stationary cart is 72.1 N.

The given parameters:

Based on Newton's second law of motion, the force applied to object is directly proportional to the product of mass and acceleration of the object.

F = ma

Static frictional force is the force resisting the motion of an object at rest.

\(\Sigma F = 0\\\\F -F_f = 0\)

where;

\(F_f\) is the frictional force

\(F= F_f \\\\72.1 = F_f\\\\F_f = 72.1\ N\)

Thus, the possible magnitude for the force of static friction on the stationary cart is 72.1 N.

Learn more about Newton's second law of motion: https://brainly.com/question/25307325

Answer:

Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not. The mechanical waves need a medium like water, air, or anything for it to travel.

Explanation:

Answer:

A: The alkali metal atom forms a +1 ion, while the alkaline earth metal atom forms a +2 ion.

Explanation:

Adiabatic cooling refers to the cooling of a parcel of air as a result of its expansion due to a decrease in pressure or an increase in volume. This process occurs without the addition or subtraction of heat from the environment.

As the parcel of air rises in the atmosphere, it encounters lower atmospheric pressure, causing it to expand. The expansion leads to a decrease in temperature within the parcel, resulting in adiabatic cooling.

Adiabatic cooling plays a crucial role in the formation of atmospheric clouds. When warm, moist air rises, it undergoes adiabatic cooling due to expansion. As the air cools, it reaches its dew point, where the air becomes saturated with water vapor, leading to the formation of tiny water droplets or ice crystals. These tiny particles then condense on aerosols, such as dust or pollutants, to form visible clouds.

Meteorologists widely acknowledge that adiabatic cooling is a fundamental factor in cloud formation. Understanding the principles of adiabatic cooling helps predict cloud types, atmospheric stability, and weather patterns. It is essential for meteorologists to consider adiabatic processes to accurately forecast and study the behavior of clouds, precipitation, and other atmospheric phenomena.

To know more about Adiabatic cooling click this link-

https://brainly.com/question/31827289

#SPJ11

Based on their observations at the amusement park, the hypothesis that would be best supported by evidence is likely

option B: gravity provides the force needed to move the car throughout the entire ride.

This is because the students would have observed that the rollercoaster car relies on the force of gravity to move along the tracks and provide the thrill of the ride. The other hypotheses may have some merit, but they may not be as strongly supported by the evidence observed during the students' visit to the amusement park.

To know more about hypothesis click this link-

brainly.com/question/29519577

#SPJ11

Answer:

It's solar because if you leave a tv on for longer it gets hot and obviously it produces light and sound so, by subject of elimination, it's solar.

Explanation:

Answer:

I think solar because the thermal and sound and light are like a part of the tv (sorry for my English)

23674 N is the amount of magnitude frictional force required to bring the locked-together automobiles to a complete stop.

Magnitude is simply referred to in physics as "distance or quantity." It shows the size or direction that an object moves in either an absolute or relative sense.

A magnitude can be defined as a quantity's size in simple terms. For instance, the Richter scale's measurement of an earthquake's magnitude, which identifies the earthquake's size, typically ranges from 1 to 10. An earthquake with an 8-magnitude is far more problematic than one with a 3-magnitude.

To know more about magnitude visit:

https://brainly.com/question/14033610

#SPJ1

The take-off speed of the plane as it accelerate from rest is 36.65 m/s.

Speed can be defined as the ratio of distance to time.

To calculate the the take-off speed of the plane, we use the formula below.

Formula:

Make v the subject of the equation

Where:

From the question,

Given:

Substitute these values into equation 1

Hence the take off speed of the plane is 36.65 m/s.

Learn more about speed here: https://brainly.com/question/553636

#SPJ1

The given equation,F = (9/5)C + 32gives the Fahrenheit temperature corresponding to the Celsius. To find the Fahrenheit temperature equivalent to 25 Celsius, we will substitute the given value of Celsius into the above equation.

So, F = (9/5)(25) + 32F = 45 + 32F = 77Hence, the Fahrenheit temperature equivalent to 25 Celsius is 77 degrees Fahrenheit.

To find the Fahrenheit temperature equivalent to a given Celsius temperature, we use the equation

F = (9/5)C + 32, whereF is the Fahrenheit temperature andC is the Celsius temperature.

The equation is derived from the relationship between the Celsius and Fahrenheit temperature scales.In this equation, 9/5 is a conversion factor used to convert the Celsius temperature to Fahrenheit.

The constant 32 is added to the product of the conversion factor and the Celsius temperature to get the Fahrenheit temperature.The question asks us to find the Fahrenheit temperature equivalent to 25 Celsius. To do this, we substitute the given value of Celsius into the equation.

So, we haveF = (9/5)(25) + 32Simplifying the right-hand side, we getF = 45 + 32Evaluating the expression,

we getF = 77Therefore, the Fahrenheit temperature equivalent to 25 Celsius is 77 degrees Fahrenheit.

Thus, we can conclude that the Fahrenheit temperature equivalent to 25 Celsius is 77 degrees Fahrenheit, which we found using the equation F = (9/5)C + 32.

This equation is used to convert Celsius temperatures to Fahrenheit temperatures. The conversion factor 9/5 is multiplied by the Celsius temperature, and 32 is added to the result to get the Fahrenheit temperature.

To know more about Celsius temperature :

brainly.com/question/31679117

#SPJ11

The Planet on its axis often contributes to the deflection created by the Coriolis force.

Moving objects in a reference point that rotates relative to an inertial frame are affected by an imagined or inertial force known as the Coriolis force. the force acting left of a object . an object in a frame of reference rotating in a clockwise direction.

Rotation: Rotation, often known as spin, is the cyclical motion of an object about a fundamental axis.

A two-dimensional rotating object can only have one possible central axis.

Such things have an axis that may rotate either counterclockwise or clockwise.

To know more about Coriolis force  visit:

https://brainly.com/question/29801913

#SPJ4

The extra mass of the magnesium oxide comes from then magnesium nitride that is also formed.

If we look at the law of the conservation of mass, we know from that very law that the masses of the substances at the beginning of the reaction must be the same as the masses of the substances at the end of the reaction and this is because the mass of the reaction is conserved.

Given the fact that magnesium does combine with nitrogen to give magnesium nitride in the reaction then the mass of the product would be higher.

Learn more about mass:https://brainly.com/question/13383562

#SPJ1