A force of 18 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching it from its natural length to 11 in. beyond its natural length? W = ft-lb

A - what constant acceleration, in SI units, must a car have to gofrom zero to 60 mph in 10 s? b - what fraction of g is this? c - how far has the car traveled when it reaches 60 mph? Giveyour answer both in SI units and in feet

The formula of acetic acid is C2H4O2. How many atoms is acetic acid composed of? A. 6 B. 8 C. 4 D. 3

What did the accident at the nuclear power plant in Chernobyl in 1986 demonstrate about the use of nuclear power that had not been previously demonstrated?

A saturated solution of lead (II) nitrate was made at 50 °C using 100 g of water, and this was then allowed to cool to 30 °C. Predict what would happen as the solution cooled?

The speed of an object determines the amount of inertia? True or False

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2