At an outdoor market, a bunch of bananas is set into oscillatory motion with an amplitude of 20.0cm on a spring with a spring constant of 16.0 N/m. It is observed that the maximum speed of the bananas is 40.0 cm/s. What is the weight of the bananas in Newtons?
A sound wave has a frequency of 700 Hz in air and a wavelength of .50m. What is the temperature of the air?
speed of sound in air = 345 m/s.
I don't even get how to go about this problem...i don't know the equation
Assume the weight of a pool ball is .17kg. If the ball traveled 1.2 m in 5.3 seconds, what is the force of Friction and coefficient of friction between the pool ball and the table?
Now, All I know how to do it calculate the normal force which is (9.8)(.17) = .1666 but where do i get from here?
A projectile is shot from the edge of a cliff 125 m above ground level with an initial speed of 105 m/s at an angle of 37 degrees with the horizontal. What is the time it takes the projectile to hit the ground? How far from the base of the cliff does it land?
Now my major problem is that I...
A 50-kg crate is pulled 40 m along a horizontal floor by a constant 100 N force exerted by a person which acts at a 37 degree angle above the horizontal. Determine the work done on the crate.
I know the equation for work is
work = F * delta X (triangleX) OR work = m*acceleration*deltaX...
Help and Fast please!
A car is designed to get its energy from a rotating flywheel whth a radius of 2 m and a mass of 500 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5000 rev/min. (a) Find the kinetic enrgy stored in the...