A 70.0 kg sailor climbs a 28.3 m rope ladder at an angle of 45.0° with the mast. How much work did he do?

What is the term used to label the energy levels of electrons?

You travel an an average speed of 20 km/h in a straight line to get to your grandmothers house. It takes you 3 hours to get to her house. How far away is her house from where you started?

A 13 kg sled is moving at a speed of 3.0 m/s. at which of the following speeds will the sled have tace as mucb as the kinetic

For an isothermal process, the work done by or a system of ideals gas is equal to change in what A the work done is equal to the change in internal energy B the work is equal to the change in heat energy C the work done is equal to change in entropy

Which of the following is used in Sonata II's prepared piano? A. Small pieces of rubber B. Copper wire C. Coins D. Wooden blocks

A sample of ancient granite crust is dated using potassium-40. Scientists find that 50% of the potassium-40 has decayed to form argon-40. Approximately how old is this rock?

A balloon is at a height of 81m and is ascending upwards with a velocity of 12m/s. A body of 2kg weight is dropped from it. If g=10m/s2, the body will reach the surface of the earth in how much time?

Which features do sound waves have the ocean and light waves do not

Select the statement that is true regarding scientific theories. A. Scientific theories are what laws are called before they are proven. B. Scientific theories attempt to explain why natural events occur. C.

If the temperature of the air in a certain region is increased by heating from the sun, does the air pressure at the ground increase or decrease?