A 40.0 kg ballet dancer stands on her toes during a performance with 25.0 cm2 in contact with the floor. What is the pressure exerted by the floor over the area of contact if the dancer is stationary

How does the weight of a paper airplane affect the distance it will travel

Describe what long sight is and how it is corrected with a lens

Which type of pollution occurs when small particles of soil are suspended in water?

Which one of the following is a measurement of energy used? A. 24 meters per second B. 60 milligrams C. 15 liters D. 6 joules

Calculate the change in the kinetic energy (KE) of the bottle when the mass is increased. Use the formula KE = mv2, where m is the mass and v is the speed (velocity). Assume that the speed of the soda bottle falling from a height of 0.

An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 900 m, horizontal distance 19.0 km, and 22.5° south of west. The second aircraft is at altitude 1300 m, horizontal distance 17.0 km, and 24.

What is the magnitude of the electric field 23.4 cm directly above an isolated 3.50*10-5 C charge?

If the amount of Adams of each type on the left and right sides of a reaction difference what must be done to balance it

In which state of matter are particles packed tightly together and stay in fixed positions?

An apple has a mass of 0.136kg and a watermelon has a mass of 9.07kg. Work out the mass of the apple as a percentage of the mass of the watermelon. Round to two significant figures. Convert kg values into pounds