Express the following in scientific notation:

1. 6,000,000,000,000,000,000,000

2. 547,000

3. 3,507,000,000

4. 0.0004650

A slingshot fires a pebble from the top of a building at a speed of 17.5 m/s. The building is 31.5 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground when the pebble is fired in the following directions.

Two frictionless blocks, having masses of 8.0 kg and 1.0 kg, rest on a horizontal surface. if a force applied to the 8.0 kg block gives it an acceleration of 5.0m/s2, then the same force will give the 1.0 kg block an acceleration (in m/s2 of

How high must you lift a 25-newton book for it to have the same increase in potential energy as a 20-newton book that was lifted 0.5 m

What is the term for the force experienced by a charged particle in an electromagnetic field?

A roller coaster glides from rest from the top of an 80.0 meter hill. What is the speed of the roller coaster at the bottom of the hill?

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.