Whenever an object is standing still, which value is always zero?

An airplane has a momentum of 22,125 kg*m/s. if the airplane moves at a speed of 25 m/s. what is its mass?

Which of the following is an example of a lever? knife ramp pencil sharpener wheelbarrow

At a certain harbor, the tides cause the ocean surface to rise and fall a distance d (from highest level to lowest level) in simple harmonic motion, with a period of 12.8 h. How long does it take for the water to fall a distance 0.

When the mover pushes the box, two equal forces result. Explain why the box moves

What do biologists, geologists, and physicists have in common, how are they differnet

How did Niels Bohr change the atomic model based on his experimental results?

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 50.0 cm. She finds that the pendulum makes 100 complete swings in 136 s. What is the value of g on this planet?

When a the irregularities of one surface come into contact with those of another surface, occurs

What type of wave passes through the spring in the frog toy? Why?

Different kinds of substances have different properties of metals