12,725 Answered Questions for the topic physics

Physics

11/07/23

This problem has three parts. I will type out the questions for these three parts and additional info in "Description" below.
The distance from the center of the earth to the center of the moon is 3.8*108 m. G = 6.67*10-11 Nm2/kg2 and the mass of the earth is 5.98*1024 kg. The mass of the moon is 7.35*1022 kg.Part a) Find... more
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Physics

11/07/23

Consider two blocks attached by a massless rope and placed on either side of a frictionless, asymmetric, double ramp.

The rope runs over an ideal pulley at the apex of the double-ramp. The first block (on the side with an incline of θ ​1 ​​ =57.0 ​​ ) has a mass of m ​1 ​​ =13.0 kg. What must the mass, m ​2 ​​... more
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Physics

11/06/23

Football physics problem-please help I am stuck on this!
An 80-kg quarterback jumps straight up in the air right before throwing a 0.43-kg football horizontally at 15 m/s. - How fast, (Vqx)f will the quarterback be moving backward just after releasing... more
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Physics

11/05/23

PHYSICS HW problem-speed (please help, I am lost)
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 16 m/s. The third piece has twice the mass as the... more
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Physics

11/05/23

Physics homework problem-Very confused, due tomorrow, please help:)
Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of... more
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Physics

11/05/23

Best AP Physics C Mechanics prep book
Good Day! I am pursuing AP Physics C Mechanics in my senior year in High School. I am looking for an AP Physics C Mechanics prep book with lots of problems and solutions.Can you recommend which... more
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Physics

11/05/23

What is the power P of the eye when viewing an object 49 cm away? Assume the lens to retina distance is 2 cm.

What is the power P of the eye when viewing an object 49 cm away? Assume the lens to retina distance is 2 cm.
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Physics

11/05/23

Find the mass of Jupiter, in kg, based on given data (in "Description") for the orbit of one of its moons.

Moon: IoAverage orbital radius (r) in km: 4.22*105 kmPeriod Time (T) in years (y): 0.00485 y (or 1.77 days)r3/T2 in km3/y2: 3.19*1021 km3/y2Moon: EuropaAverage orbital radius (r) in km: 6.71*105... more
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Physics

11/05/23

This problem has 5 parts. I will type out the questions for each of these five parts and any additional info in the "Description" below.
Space debris left from old satellites and their launchers is becoming a hazard to other satellites. One can estimate how long such a collision lasts; if an object of length l is travelling at a... more
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Physics

11/04/23

This problem has four parts to this. I will type the questions for each of these four parts along with additional info about this problem in the "Description" below.
A car is driving along a level and unbanked circular track of diameter d = 0.94 km at a constant speed of v = 21.7 m/s.Part a) Write an expression for the magnitude of the acceleration of the car... more
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Physics

11/04/23

What banking angle (in degrees) will prevent cars from sliding off the road, assuming everyone travels at the speed limit and there is no friction present?
A given highway turn has a 115 km/h speed limit and a radius of curvature of 1.1 km.
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Physics

11/04/23

Physics Question
A 500 g sample of copper at 80.0°C is placed in 2.00 kg of water at 25.0°C. The water is in a closed styrofoam container which does not exchange any heat with the environment. What is the... more
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Physics

11/04/23

Being a Physics Tutor
Hi, May you please guide me how to apply for being a physics tutor? I am physics lecturer at Cal Poly San Luis Obispo. Thanks for your time,Reza
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11/03/23

Determine the observed rotation angle (α) (for part A). Determine the observed rotation angle (α) (for part B).
Part A: The specific rotation ([α]) of Unknown molecule (name is censored on this website but is not relevant for answering the question) in chloroform solvent is -16.3 degrees. determine the... more
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Physics

11/03/23

Plssss help, sorry for the trouble

Link to image of the problemThank you!!!!
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Physics

11/03/23

Pls help, sorry for the trouble

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Physics

11/03/23

If he does this 29 times, how much work has he done? Answer in units of J.
A cheerleader lifts his 36.7 kg partner straight up off the ground a distance of 0.698 m before releasing her. Assume the partner’s velocity is zero at the beginning and the end of the lift. The... more
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Physics

11/03/23

Pls help, sorry for the trouble

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Physics

11/03/23

Pls help, sorry for the trouble

Link to image of the problemThank you!
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Physics

11/03/23

Pls help, sorry for the trouble

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Physics

11/03/23

If the coefficient of kinetic friction between the block and the wall is 0.30, find a) the work done by the force on the block. Answer in units of J.
A 1.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 28.0 ◦ with the horizontal, as shown in the figure. The acceleration of gravity... more
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Physics

11/03/23

Pls help, sorry for the trouble

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Physics

11/03/23

Pls help, sorry for the trouble

Link to image of the problemThank you!
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Physics

11/03/23

Find the work done by the 80.4 N force. The acceleration of gravity is 9.8 m/s 2 . Answer in units of J.
A 19.4 kg block is dragged over a rough, horizontal surface by a constant force of 80.4 N acting at an angle of 28.7 ◦ above the horizontal. The block is displaced 61.8 m, and the coefficient of... more
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Physics

11/03/23

Pls help, sorry for the trouble

Link to image of the problemThank you!
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