12,727 Answered Questions for the topic physics

Physics

05/25/24

The ball hits the wall with a velocity of 15 m/s, and then rebounds from the wall at velocity of 6 m/s.
 Theball hits the wall with a velocity of 15 m/s, and then rebounds from the wall at a velocity of 6 m/s.The me in contact with the wall is 1.5 ms. what is the acceleration of the ball during... more
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Physics

05/25/24

You are given the following equaton of motion x = 3 t3 + 8.
Determine the average velocity atbetween 2 and 3 seconds and the average velocity between 2.4 and 2.6 seconds
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Physics

05/25/24

Two cars are parked at an intersection. When the light turns green
Two cars are parked at an intersection. When the light turns green, the blue car accelerates suchthat it reaches a velocity of 20 m/s after 100 m and then travels down the road at the... more
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Physics

05/22/24

Need help to solve pulley problem
A massive, frictionless pulley consists of two 310 g solid disks with 3.8 cm radii connected by a lightweight axel with a 2 cm radius. A string is wound around the axel of the pulley and attached... more
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Physics

05/22/24

Bible time question
If one day to God is 1,000 years how much time has passed (for God) in 20 years?
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Physics

05/21/24

What is the science behind objects being reflected in a mirror?

How do items reflect in a mirror? What is that process?
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Physics

05/20/24

Need help to solve these problems
A new art exhibit featuring mobile works is going up in the Holland, MI, area. One piece is shown in the figure. The 111 N uniform beam has a length of 1.6 m and is pinned to the ground by a pivot.... more
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Physics

05/19/24

Need help to solve these problems
A 1200 kg, 17 m long crane boom is holding up a 3000 kg at its far end. The boom pivots at point A, and is attached to a support cable at point B. The support cable makes an angle of 10∘ with the... more
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Physics

05/19/24

A 5 m long, 23.2 kg ladder rests up against a frictionless wall such that the angle between the ladder and the floor is 53∘ .
If the coefficient of static friction between the ladder and the floor is 0.28, what is the furthest distance, d, a 89.3 kg person can climb up the ladder, in m?
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Physics

05/18/24

buoyant force versus depth of water

A box is partially submerged in water. It has a height H, but it is only submerged a depth D. A student graphs the relationship between buoyant force versus depth. The graph shows a linear line,... more
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Physics

05/18/24

fluids question about buoyant force & submerged volume

There is a man standing in a pool. Besides him, there is a raft floating, at rest, in the pool. How does the water level change when the man lays down on the float?
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Physics

05/18/24

electrostatics triangle corner charges question
Imagine an equilateral triangle. The top vertex has a positive charge. The bottom left vertex has a negative charge. The bottom right vertex has a positive charge. What happens to electric... more
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Physics

05/16/24

A plane is flying 100 km/h to the north. The wind begins blowing 20.0 km/h to the south. What is your resultant displacement?
Magnitude: (The answer should be a whole number. Do not include units.) 80Direction (abbreviate direction):
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Physics

05/16/24

A 170 g block hangs from a spring with spring constant 11 N/m . At t=0s the block is 24 cm below the equilibrium point and moving upward with a speed of 107 cm/s .
What is the block's distance from equilibrium at t = 6.0/s?Express your answer with the appropriate units. Enter positive value if the block is above the equilibrium point and negative value if the... more
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Physics

05/16/24

AP Physics Circuit Question
https://app. gemoo.com/share/image-annotation/649550716401061888?codeId=MpOZa76nzpWON&origin= imageurlgenerator&card= 649550715587366912(Included spaces in the link so that it would... more
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Physics

05/16/24

Red and Blue Light Absorption
https ://app .gemoo.com /share/image- annotation/649549733117845504? codeId=M07nwK2lbpkwR^ image for question (included spaces in link so that it would work)
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Physics

05/15/24

What equations are needed and how do I solve for these?
a) A 0.400 kg sample of aluminum (c = 9.10 x 102 J/kg°C) at 95°C is dropped into a0.550 kg pot of water which is at 18°C. What temperature will the mixture come to?b) How much thermal energy is... more
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Physics

05/15/24

How to write proper nuclear reactions?
a) Beta-decay of radon-222b) Alpha-decay of uranium-238
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Physics

05/15/24

Need help to find the magnitude of net torque
Four forces in the x−y plane act on an irregularly shaped object that is free to rotate about the z axis. Note that the z axis, which passes through the origin, is perpendicular to the x−y plane... more
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05/14/24

dt = dy/√( (LFt) / (M/L) )
Hello, I am doing some physics HW and I am having trouble with a problem. this is what I know so far. v = dy/dt, but I am trying to solve for time (t) so the equation becomes dt = dy/v, and v = (... more
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05/13/24

Thermodynamics problem
We solved this task in the class, but I don't understand it. I would be very happy if someone could explain it in general terms. I can write the basic equations for the adiabatic change of state,... more
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Physics

05/12/24

A bike rider accelerates constantly to a velocity of 9.5m/sec in 6 seconds. The displacement during the acceleration was 36m. What was the initial velocity of the bike?
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Physics

05/11/24

fluids buoyant force ap physics 2 question!!! help
2) The students were discussing future lab work after completing a lab to determine the density of an irregularly shaped object using spring elongation. Student A said they could try submerging the... more
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Physics

05/10/24

Image height and position-DIVERGING lens
A 2.5-cm-tall object is 30 cm in front of a diverging lens that has a -15 cm focal length. Calculate the image position. Calculate the image height.
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Physics

05/10/24

Image height and position-converging lens
A 1.0-cm-tall object is 12 cm in front of a converging lens that has a 35 cm focal length. Calculate the image position. Calculate the image height.
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