A man in a gym is holding an 8.0-kg object at arm's length, a distance of 0.55 m from his shoulder joint. What is the torque about his shoulder joint due to the object if his arm is held at 30° below the horizontal?

Imagine you are holding an apple. how could you increase the potential energy of this apple?

The acceleration due to gravity on planet x is one fifth that on the surface of the earth. if it takes 4.

A newly discovered solar system is found 600 billion kilometers from the sun. How many AU does this represent? Show your work.

You throw a small toy ball that is covered with suction cups at the center of your glass patio door. When it hits it sticks to the glass, and because the door was not latched, it causes the door to swing open with an angular velocity of 0.19 rad/s.

Space rover weighs 100 N on Earth while a different space rover weighs 100 N on the moon When you compare the masses of the two space rovers, which rover has the greater mass?

A starship passes Earth at 80% of the speed of light and sends a drone ship forward at half the speed of light rela - tive to itself. Show that the drone travels at 93% of the speed of light relative to Earth.

Rubies are used in electronics

Two kids are on a merry-go-round that is turning at a constant rate. ariel is near the outer edge, and bob is closer to the center. ariel has answer (smaller, the same, or greater angular speed?

Visit this website and locate the element mercury, whose chemical symbol is Hg. Click on the square to read about the history, properties, and uses of mercury. Name three uses for mercury.

Ten seconds after starting from rest, a car is moving at 40 m/s. what is the car's acceleration in meters per second per second?