. A mass of 400 g is attached to the spring and stretched a distance of 25.0 cm
from equilibrium. The mass is then released.
. At a position of 10.0 cm from the equilibrium the acceleration of the mass was
measured to be only77.00 m/s?, a good bit less than what was expected.
The students deduced that the surface the mass is sliding over must be producing
friction.
Use the information outlined above to determine the coefficient of kinetic friction, H.

Write a polynomial function with the given zeros x= -1,0,2show your work

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)