60 kilometers in 4 hours, what is the average speed?

Calculation of work out put in machine

Flying plane rolling ball moving car crawling bug Which statement best describes the energy of these objects? a. These are objects in motion that have kinetic energy. b. These objects are converting wind energy into movement. c.

A triangular plate with height 3 ft and a base of 5 ft is submerged vertically in water so that the top is 1 ft below the surface. Express the hydrostatic force against one side of the plate as an integral and evaluate it.

A collision between two billiard balls isa.) closely, a perfectly elastic collisionb.) an elastic or an inelastic collision, depending on the angel between the paths of the ballsc.) a perfectly inelastic collision.

A 210-kg woorden raft floats on a lake. When a 75-kg man stands on the raft, it sinks 5.0 cm deeper into the water. When he steps off, the raft vibraties for a while. A. What is the frequency of vibration? B.

Using the atomic symbol above report how many protons, neutron, and electrons an atom of neon contains.

Which of the following is not shorthand to describe one of the three types of ecological relationships? +/+ -/+ +/0 -/0

Which is a characteristic of an electromagnetic wave?

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.