What mass of water in grams will fill a tank 100cm long, 50cm wide, 30cm high?​

For a person dragging a packing crate of mass 100 kg, the angle above the horizontal  is mathematically given as

theta = 21.8 °

Generally, the equation for the Force   is mathematically given as

\(Fnet = F_{costheta} - F_{friction}\)

Therefore

Fnet = Fcostheta - mu*((mg) - Fsintheta)

sin theta = mu*costheta

mu = tantheta

theta = tan^-1(mu)

theta = tan^-1(.400)

theta = 21.8 °

In conclusion, the angle above horizontal

theta = 21.8 °

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Answer:

125

Explanation:

use the formula e=1/2mv² and use m=10 and v=5

this produces the equation e=1/2x10x25=125

dont forget the units (J) ;)

Answer:

125J

Explanation:

K.e=1/2mv^2

=1/2(10)(5)^2

=125J

The amount of wavelength of light thick is the thumbnail x/y.

Given:

Wavelength of light= x

Thickness of thumbnail= y

The amount of wavelength thick the thumbnail is x/y

What is wavelength?

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The potential energy of the system is found to be  4.12 Joules.

The potential energy of a system of point charges is :

PE = k * (\(q_1 * q_2\)) / r

PE =  potential energy,

k =  electrostatic constant k = \(8.99 * 10^9 Nm^2/C^2\)

\(q_1 and q_2\)=  charges,

r =  distance between the charges.

PE = k * (\(q_1 * q_2) / r + k * (q_1 * q_3) / r + k * (q_2 * q_3\)) / r

PE = (\(8.99 * 10^9\) ) * [(\(1.10 * 10^-^6 C\))² / (0.700 m) + (\(1.10 *10^-^6 C\))² / (0.700 m) + (\(1.10 * 10^-^6 C\))² / (0.700 m)]

potential energy = 4.12 J

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Answer:

Social media has helped many businesses grow and promote itself, and has helped people find a better way to connect and communicate with one another. On the other hand, it's also provided many people with problems involving mental health, emotional insecurities, and waste of time

Explanation:

what they said is correct

Answer:

Explanation:

any law stating that some quantity or property remains constant during and after an interaction or process, as conservation of charge or conservation of linear momentum.

The universe may indeed have an end one day according but it is yet to be shown in science.

While there is certainly no way a person will live long enough to know if the universe will end or not, nevertheless certain scientific calculations are helpful.

From astronomical calculations, the universe is anticipated to have existed for about 13.8 million years. Thus, the universe may indeed have an end one day according but it is yet to be shown in science.

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Answer:

Answer:

Hey There!

Let's solve....

\(v = \frac{1}{2} k{x}^{2} \\ \\ \frac{ v_{1} }{ v_{2} } = (\frac{ x_{1} }{ x_{2}}) ^{2} \\ \\ \frac{v}{ v_{2} } =( \frac{ \cancel{2}}{ \cancel{10 }}) ^{2} \\ \\ = \frac{1}{25} \\ \\ v_{2} = 25v_{1} \\ \\ = 25v \)

Answer:

Both particle and wave properties

Explanation:

Light is defined as a particle and a wave, and even as a combination of a particle and a wave. A unit of light is the photon. Higher energy photons behave like particles and low energy photons behave like waves.

Experiments performed with light indicate that light exhibits both particle and wave properties.

The energy transformations in a projectile launcher involve the conversion of potential energy stored in the spring into kinetic energy of the ball, which is then transformed into other forms of energy as the ball moves through the air and interacts with other objects.

When a projectile launcher uses a spring to launch a ball, there are several energy transformations that occur:

1.Potential energy is stored in the spring as it is compressed. The amount of potential energy stored is given by the equation PE = (1/2) k x², where k is the spring constant and x is the distance that the spring is compressed.

2.When the spring is released, the potential energy is transformed into kinetic energy as the spring expands and pushes the ball forward. The kinetic energy of the ball is given by the equation KE = (1/2) m v², where m is the mass of the ball and v is its velocity.

3.As the ball travels through the air, it loses some of its kinetic energy due to air resistance, which is a form of non-conservative force. This energy is transformed into heat and sound energy.

4.When the ball hits a surface, some of its kinetic energy is transferred to the surface, causing it to deform or move. The remaining kinetic energy of the ball is transformed into other forms of energy, such as heat and sound energy.

Overall, the energy transformations in a projectile launcher involve the conversion of potential energy stored in the spring into kinetic energy of the ball, which is then transformed into other forms of energy as the ball moves through the air and interacts with other objects.

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Answer:

The value is \(t = 5.124 \ s\)

Explanation:

From the question we are told that

   The height of the tree is \(s = 20 \ m\)

    The angle the ball leaves is  \(\theta = 45^o\)

    The initial velocity  is  \(u = 30.0 \ m/s\)

Generally the vertical of the ball's initial velocity is mathematically evaluated as

      \(u_y = u * sin (45)\)

=>   \(u_y =- 30 * sin (45)\)

=>   \(u_y = -21.21 \ m/s\)

Here  \(u_y\) is negative because it is in the direction of the negative y-axis

Generally from kinematic equation we have

      \(s = u_yt + \frac{1}{2} g t^2\)

=>   \(20= -21.21 t +4.9 t^2\)

=>   \(4.9 t^2 -21.21 t- 20= 0\)

Solving using quadratic formula we have that

        \(t = 5.124 \ s\)

Answer:

Explanation:

Givens

vi = 50 m/s

vf = 0

a = - 9.81

t = ?

Formula

t = (vf - vi)/a

Solution

t = (0 - 50)/-9.81

t = 5.097

Notice that a is made into a minus. It does not mean subtract. It means that the direction of the projectile and gravity must go in opposite directions. You will find that direction is a critically important consideration in physics.

Answer:

It'd take it 5.10 seconds

Explanation:

At the top of the launch, it is maximum height, h

formular derivation :

At maximum height, final velocity, v is zero

From first newtons equation:

\({ \sf{v = u + gt}}\)

v is the final velocity

u is the initial velocity

g is acceleration due to gravity

t is the time taken

but v is zero:

\(0 = u + gt \\ gt = u \\ t = \frac{u}{g} \)

since it is vertical motion, u = usin(theta), where angle is 90°

\({ \boxed{t = \frac{u \sin( \theta) }{g} }}\)

t is the time taken to reach the top of the launch:

substitute, taking g to be 9.8 m/s²

\(t = \frac{50 \times \sin(90 \degree) }{9.8} = \frac{50}{9.8} \\ \\ { \boxed{ \boxed{time = 5.10 \: seconds}}}\)

Answer:

A

Explanation:

I got this answer because (by my estimation again) you are looking at 0.04 m/s which is the sound of a measure of a 2 Hz sound frequency. Therefore, for each section on the table diagrams I multiplied the period by their wavelength measurement until I got the value 0.04 m/s. In which A was the only option that gave me that value, providing me with a 2 Hz sound frequency.

Answer:

A

Explanation:

Idont know really i asked my grandpa bc he was a teacher and he said it was A if its wrong then im sry

Answer:20 miles

Explanation:

Answer:

Physical science

Explanation:

Answer:

Explanation:

in a room with no windows that way it doesnt shatter. Usually a closet... or if you have a basement.sorry but that applies to all them

Explanation:

for the tornadoes

● go to the basement on the lowest floor.

● for heavy protection get under something heavy for example a heavy table.

hail storm

●go and run for a safe place closer _ by like for example garage,under a shed or service station awning.

● do not leave the vehicle until stops hailing.

earthquake

●The best move is getting under a strong table

or a desk

● hold on the shelter if not hold on your neck and head with both arms and hands.

Answer:how long it took you to get there and the distance between your house and her house

Explanation:

Answer: The length of each side of the cube when moving past an observer at 2.5 x 10^8 m/s is 1.22 cm.

The question is asking us to consider the relativistic effect of time dilation and length contraction, which affect the measurement of distance and time by a moving observer. Therefore, the apparent length and shape of the cube will differ from the actual measurements as seen by an observer at rest.
a) When the cube moves past an observer at a velocity of 2.5 x 10^8 m/s, it takes on a shape that is flattened in the direction of motion. This is because of the relativistic effect of length contraction. This effect states that the length of an object appears shorter to an observer in motion than to an observer at rest.

The degree of length contraction increases with velocity and is given by the formula: L' = L₀ / γ    

where L₀ is the length at rest, L' is the apparent length observed by a moving observer, and γ is the Lorentz factor given by  :

γ = 1 / √(1 - v²/c²)  where v is the velocity of the cube and c is the speed of light.

Substituting the values, we have:

L' = 2.0 cm / γL'

= 2.0 cm / √(1 - (2.5 x 10^8 m/s)²/(3.0 x 10^8 m/s)²)L'

= 0.47 cm.

b) The length of each side of the cube when moving past an observer at 2.5 x 10^8 m/s is given by: L' = L₀ / γL = L' x γSubstituting the values, we have:

L = L' x γL

= 0.47 cm x √(1 - (2.5 x 10^8 m/s)²/(3.0 x 10^8 m/s)²)L

= 1.22 cm.

Thus, the length of each side of the cube when moving past an observer at 2.5 x 10^8 m/s is 1.22 cm.

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Formula of Coefficient of friction= F/N

Force applied on the block =47N (Provided in the question)

Mass of the body=15kg (Provided in the question)

Normal force applicable on the body(N)=m x g

N= m x g

Where N represents the Normal Force, m the mass of the body and g represents the gravitational force.

N= 15 x 9.8

N=147N

When a force is applied on a body that is less than that of the Limiting force ( the maximum static friction that can be there) then the friction force produced as a reaction to that force is equal and opposite in nature, acting on the same body.

Since a 47N force is applied on the block a static friction force of the same value will pull the body in the opposite direction.

Thus force due to Friction=47 N

Coefficient of Friction= Friction/ Normal Force

Coefficient of friction =47/147

coefficient of friction=0.319

coefficient of friction≈0.32

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Substance:-

When the plate separation of a charged parallel plate capacitor is increased, the potential difference between the plates decreases.

In a parallel plate capacitor, the potential difference (V) between the plates is directly proportional to the electric field (E) between the plates and the plate separation (d). Mathematically, V = Ed. Therefore, if the plate separation is increased to 4d, the electric field between the plates decreases by a factor of 1/4. Since the potential difference is directly proportional to the electric field, it also decreases by the same factor of 1/4. In other words, the potential difference decreases by 75% (or 3/4) when the plate separation is increased to 4d.

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Agatha requires (c) 10 hours of sleep each night.

Children in middle school ideally require average 9-12 hours of sleep each night. If the number of hours of sleep each night is compromised, it will show effect on the concentration and health of the child.

Because sleep is crucial to your physical health, it is crucial that you receive enough of it every night. For instance, your heart and blood arteries are able to recover and repair themselves as you sleep. An increased risk of heart disease, renal disease, high blood pressure, diabetes, and stroke has been related to chronic sleep deprivation. For the brain and body to operate properly the following day, doctors and specialists advise children to receive at least 9 to 12 hours of sleep each night.

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Answer:

18301.4Kg

Explanation:

Step 1:

Data obtained from the question. This include the following:

Mass 1 (M1) = 0.512Kg

Mass 2 (M2) =..?

Distance apart (r) = 0.0250m

Force (F) = 0.001N

Gravitational force constant (G) = 6.67x10^-11Nm²/Kg²

Step 2:

Determination of the mass, M2 needed to create a force of 0.001N.

This can be obtained as follow:

F = GM1M2/r²

0.001 = 6.67x10^-11 x 0.512 xM2/0.025²

Cross multiply

6.67x10^-11 x 0.512 xM2 = 0.001x0.025²

Divide both side by 6.67x10^-11 x 0.512

M2 = (0.001x0.025²)/(6.67x10^-11x0.512)

M2 = 18301.4Kg

Therefore, a mass of 18301.4Kg is needed

The sound intensity at a rock concert, 1.0 mm in front of the bank of loudspeakers, is 0.10 W/m². A fan is positioned 30 mm from the loudspeakers, and her eardrums have a diameter of 8.4 mm.

To calculate the sound intensity at the fan's position, we can use the inverse square law, which states that sound intensity decreases with the square of the distance.

First, we need to convert the fan's distance from millimeters to meters. Since 1 meter is equal to 1000 millimeters, 30 mm is equal to 0.030 m.

Next, we can use the inverse square law formula: I₂ = I₁ × (d₁/d₂)², where I₁ is the initial sound intensity, I₂ is the sound intensity at the fan's position, d₁ is the initial distance, and d₂ is the distance at the fan's position.

Plugging in the given values, I₁ = 0.10 W/m², d₁ = 1.0 mm = 0.001 m, and d₂ = 0.030 m, we can calculate I₂.

I₂ = 0.10 × (0.001/0.030)²
I₂ ≈ 0.10 × (0.033)²
I₂ ≈ 0.10 × 0.001089
I₂ ≈ 0.0001089 W/m²

So, the sound intensity at the fan's position is approximately 0.0001089 W/m².

In conclusion, the sound intensity at a rock concert is significantly lower 30 mm away from the loudspeakers compared to 1.0 mm in front of the bank of loudspeakers. The sound intensity decreases as the distance increases according to the inverse square law.

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The speed and time have a linear relationship. It is independent of mass. The upper limit is a)Mg/c and b)gt.

What exactly does acceleration mean?

A moving material experiences acceleration when its speed and trajectory vary over time. When anything moves quicker or longer, it is said to have been accelerated. Rotation on a circle accelerated despite the same speed since this heading is always changing.

What causes a speedup?

An object's motion is influenced by a net force; the larger the net force, the greater the acceleration. Greater net pressures are needed for more massive things to accelerate at the same rate as less massive things.

Briefing:

a) lim t-->∞  v = mg/c

 mg/c is the limit

2)It is the rate at which the item gets closer as time passes.

b) lim c-->0^(+)   v = gt.

 gt is the limit

3)The speed and time have a linear relationship. It is independent of mass. Since mass has no bearing on acceleration, an item will fall faster the longer it is in free fall.

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Answer:

Which ball has the least momentum? C. A 160 g ball that is rolling north across a field at 2.0 m/s

xXxAnimexXx

Answer:

c.160 g ball that is rolling north across a field at 2.0 m/s

Explanation:

here the mass and the velocity matters

lesser the mass and velocity, lesser the momentum

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A handy piece of equipment that can be used for spreading open thimbles, tightening lags, and assisting in wrapping dead-end grips onto a cable is a cable grip puller.

A cable grip puller is a specialized tool designed to provide a firm grip and leverage when working with cables. It typically consists of a handle or grip portion and a set of jaws or clamps that can be adjusted to accommodate different sizes of thimbles or lags. The puller allows for the spreading open of thimbles, which are metal sleeves used to protect and reinforce the cable ends.

Additionally, the grip puller's adjustable jaws or clamps can be used to tighten lags, which are screws or bolts used to secure cable fittings or fixtures. The tool provides a secure grip and the necessary torque for tightening the lags effectively.

Furthermore, a cable grip puller can assist in wrapping dead-end grips onto the cable. Dead-end grips are devices used to secure the cable ends to support structures or equipment. The puller aids in applying the necessary tension and ensuring a proper and secure grip on the cable.

Overall, the cable grip puller is a versatile and practical tool that facilitates various tasks involved in cable installation, maintenance, and securing cable ends. Its design and functionality make it a valuable asset for professionals working with cables in various industries.

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