In which situation is no work being done?

a person carrying a box from one place to another

a person picking up a box from the ground

a person pushing a box from one place to another

a person pulling a box from one place to another

Which BMI standard for teens is considered under weight? less than 5th percentile 85th percentile to less than the 95th percentile more than the 95th percentile

Why are many scientists concerned about humans adding large amounts of carbon to the atmosphere by burning fossil fuels (combustion) ? A. When carbon is released into the atmosphere it floats into outer space, and is lost forever. B.

The Earth is a spherical object which has a translational (orbital) velocity equal to 67,000 mph and a rotational velocity of 1,040 mph. Do you think there is Magnus force acting on the Earth?

Which property of gold is a physical property? A. ability to bond B. reactivity C. ability to rust D. malleability

Calculate the acceleration of a 300,000-kg jumbo jet just before takeoff when the thrust on the aircraft is 120,000 n.

Why do marine west coast climates have much precipitation

Wright true or false: 1. A baseball has more momentum than a tennis ball traveling at the same speed. 2. A light ball has more inertia than a heavy ball 3. The less momentum a bowling ball has, the easier it is for that ball to knock down pins. 4.

The interference of two sound waves of slightly different frequencies produces

8. A force of 80 pounds on a rope is used to pull a box up a ramp inclined at 100 from the horizontal. The rope forms an angle of 330 with the horizontal. How much work is done pulling the box 25 feet along the ramp?

A raindrop has a mass of 5.4 * 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted (a) on the raindrop by the earth and (b) on the earth by the raindrop.