The acceleration due to gravity on the surface of planet X is 19.6 m/s2. If an object on the surface of this planet weighs 980.0 newtons, what is the mass of the object?

A 50.00 kg

B 100.00 kg

C 490.0 N

D 908.0 N

For the pulley system shown, the rope must be raised 2 meters for every meter the block is raised. What force must be applied to raise a 500 N weight?

Light is both a wave and a particle. A. True B. False

I'm having trouble figuring out how to study for my science test, it's based off of everything we've learned but I'm afraid there's some things I misunderstood during the year that will effect me on the test, and suggestions?!!

If one of the kangaroos broken its foot, would its offspring inherit that trait

A 30.0-kg girl in a swing is pushed to one side and held at rest by a horizontal force / vec{F} F ⃗ so that the swing ropes are 30.0^/circ30.0 ∘ with respect to the vertical.

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Two astronauts, of masses 60 kg and 80 kg, are initially right next to each other and at rest in outer space. They suddenly push each other apart. How far has the heavier astronaut moved when the lighter astronaut has moved 12 m

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Jessica took a Mylar balloon outside on a very hot day. As she waited for the bus the balloon began to get bigger. What is the best explanation of this?