A 65 kg astronaut is in a spaceship 3.6x10^6 m from the center of the moon If the spaceships accelerates toward the moon at 1.8 m/s^2, what is th apparent weight of the astronaut?  ...

An alternative workout involves pulling a sled (60kg) with a rope at an incline of 15 degrees above the horizontal. How much force would be required to keep the 60kg sled moving at a constant velocity...

A block of mass m1 = 5.6 kg, moving on a frictionless surface with a velocity of (v1)i = 6.5 m/s to the right, collides with a block of mass m2 at rest. After the collision, m1 recoils with a velocity...

A narrow ray of yellow light from glowing sodium (λ0 = 589 nm) traveling in air strikes a smooth surface of water at an angle of θi = 40.5°. Determine the angle of refraction θr.

I'm looking to create free body diagrams for the following physics problem: 6 stones are stacked on top of one another (the bottom one is the largest and the top the smallest). The exact...

A scuba diver uses his waterproof flashlight to shine a beam of light so that it strikes the surface of the water at an angle of incidence θi. Use Snell’s law to find the angle of incidence that would...

A 32% efficient electric power plant produces 900 MJ (900 million joules) of electric energy per second and discharges waste heat into 20 degree C ocean water. Suppose the waste heat could be used...

You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 265 N in the positive x direction to try and move the 59 kg refrigerator. The coefficient of static...

In an exciting game, a baseball player manages to safely slide into second base. The mass of the baseball player is 88.9 kg and the coefficient of kinetic friction between the ground and the player...

Mary applies a force of 76 N to push a box with an acceleration of 0.60 m/s^2. When she increases the pushing force to 85 N, the box's acceleration changes to 0.87 m/s^2. There is a constant friction...