A ball of mass 0.05 kg strikes a smooth wall normally four times in 2 second with a velocity of 10m/s. Each time the ball rebounds with the same speeds of 10m/s. Calculate the average force on the wall

7. The water storage in a reach of river is ~ 8.7 x107 m3. Streamflow into the river reach is ~ 95m3/sec; streamflow out of that reach is ~ 87 m3/sec. Groundwater flows into this reach of river at 3 m3/min, and daily evaporation is ~ 8 mm/day.

Is there anything about the behavior of electrons in atoms that is unexpected

An object moves 15.0 m north and then 11.0 m south. Find both the distance traveled and the magnitude of the displacement vector.

A sample of gold has a mass of 38.6 grams and a volume of 2 cm3. What is the density of gold

Why would an atomic nucleus give off a particle?

Sunlight, wind, and running water are essentially "free." Yet renewable energy sources are a very small part of our energy consumption. Why is this?

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset

What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases? A. The resistance has increased. B. The volts have decreased. C. The power has increased.

The velocity - time graph of a ball of mass 25g moving on road is as given below: (a) How much force does the road exert on the ball to bring it to rest? (b) What is the direction of the force exerted by the road?