Remember Force=Springconstant x extension (F = k xX)

1. If a spring starts at a length of 13cm, and it extends to a length of 21cm - what is the

extension of the spring? Can you convert you answer into meters?

Why does a dish break more easily on concrete than carpet

Since sound travels faster in warm air, the speed of sound near the ground is increased, leading to a gradual reflection of sound waves. True or False?

A 63 kg object needs to be lifted 7 meters in a matter of 5 secound. Approximately how much horsepower is required to achieve in the task

Which medium can p waves travel through? solids liquid gas all of the above

The rotating nozzle sprays a large circular area and turns with the constant angular rate theta overscript dot endscripts = 2.2 rad/s. particles of water move along the tube at the constant rate l overscript dot endscripts = 1.

What is the weight on earth of a girl with a mass of 38 kg?

50g of ice at 0°C is mixed with 50g of water at 80°C, what will be the final temperature of a mixture in degrees C?

If the Density of an object is 5.2 g/cm3, and its volume is 3.7 cm3, what is its mass

The direction of the magnetic field is determined by which of the following? A. energy of the current B. magnetic domain C. magnetic force D. direction of the current

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.