A person rolls a barrel up an inclined plane with a length of 6m and a height of 3m / How much force is needed to roll up the barrel the length of the inclined plane if the barrel weighs 500N? How much work is done on the barrel?

What are some examples of action and reaction force

The air in this room consists of countless tiny, independent molecules. You can be sure that these air molecules won't all shift spontaneously to the other side of the room (leaving you in a vacuum) because that would (A) violate Newton's laws of

A 10,000-watt radio station transmits at 535 kHz. Determine the number of joules transmitted per second.

O How are electricity and magnetism related? o How do you make an electromagnet? What can you do to increase its power? o What is the difference between a bar magnet and an electromagnet?

During witch phase is the least % of the light that hits the moon visible from earth A new moon B waxing gibbous C waning crescent D full moon

Your heart pumps 80 g of blood with each beat. The blood starts from rest and reaches a speed of 0.60 m/s in the aorta. If each beat takes 0.16 s, the average force exerted on the blood is a. 3.0" 102 N b. 0.22 N c. 0.16 N d. 0.30 N e. 0.98 N

What is the formula for calculating the mass when i have the number of volume and density

What is the name for potential difference that causes current to flow? (A) electric charge (B) static discharge (C) voltage

How is a herpetologist and a ecologist similar

In an oscillating lc circuit, when 75.0% of the total energy is stored in the inductor's magnetic field, (a) what multiple of the maximum charge is on the capacitor and (b) what multiple of the maximum current is in the inductor?