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A 3.500 kg puppet oscillates at the end of a light spring of constant k = 8.00 N/m. What is the frequency of the oscillations
Suppose the region outside the chamber is evacuated and the total mass of the block and the movable piston is150 kg. What is the distance s through which the piston rises
A wheel starts from rest and rotates about its axis with constant angular acceleration. What is the angular velocity when the time t = 6.7 s
A 1.80kg block slides on a rough horizontal surface. The block hits a spring with a speed of 2.50m/s, what is the force constant of the spring?
The masses and coordinates of three spheres are as follows: 14 kg, x = 1.25 m, y = 1.25 m; 38 kg, x = -2.50 m, y = -2.00 m; 62 kg, x = 0.00 m, y= -0.50 m. What is the magnitude of the gravitational
A horizontal force of 12 N pushes a .5 kg book against a vertical wall. The book is initally at rest. compute the magnitude of the frictional force
A time dependent force F =8i - 4t j N (where t is in sec.) is applied to a 2.00 kg object initially at rest. How much work has the force done during the 5 sec. time interval
A curling stone with a mass of 7.00 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. What is the initial kinetic energy
What is the magnitude of the free-fall acceleration of a ball (mass m) due to the Earth's gravity at an altitude of 3R, where R is the radius of the Earth
A mass of 1.0 kg is pushed against a spring with a spring constant of 25 N/m. What is the kinetic energy of the mass after the mass is released and it is no longer in contact with the spring
A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. What is the speed of the mass when the pendulum is 45(degree) above its lowest position
A car is traveling at 15 m/s on a horizontal road. The coefficient of kinetic between the tires and road is
A ball of m1 is held slightly above ball of mass m2. The two balls are droped simultaneously, falling distance h vertically from rest. Calculate the height to which the first ball rebounds
A 67.0 kg diver is 2.30 m above the water, falling at speed of 6.70 m/s. Calculate her kinetic energy as she hits the water
Four moles of an ideal gas undergo a reversible isothermal expansion from volume V1 to volume V2 = 5V1 at temperature T = 400K. Find the entropy change of the gas
Must show all work!!! A block of mass m =.5kg is pushed against a wall with a force p = 4n orientated at an angle of 50 degrees. find the coefficient of static friction between the block and the wall
A gardener pushes a box of tools across a driveway by applying a 20.5- N force that pushes downward at an angle of 34.9 o with respect to the horizontal
A cup of newly brewed 330 g cofee is to hot to drink when served at 88 degree celcisus. What is the mass of the ice cube needed in order to cool the coffee to a pleasant 50 degree celsisus
A mass-spring system oscillates with an amplitude of 5.60 cm. If the spring constant is 226 N/m and the mass is 453 g, determine the mechanical energy of the system
Calculate the conduction rate of heat H=deltaQ/deltaT through an A=2.0 m^2 glass window of the thickness of the glass is 4 mm and the temperature difference between the inside and the outside is 20
An air bubble of 10 cm^3 is created at bottom of a lake, where the temperature is 5 degree celsius and is 100 m deep. what is the pressure at the bottom
A large cylindrical water tank of diameter od D=3.00 m. What is the flow speed of the water when it comes out from the hole
A 400 g mass is attached to a spring of constant k=16.0 N/m and set into oscillation with amplitude A=25.0 cm, Find the totall mechanical energy E of the oscillator
A rifle with a barrel length of 57cm fires a 12g bullet with a horizontal speed of 450m/s, What resistive force (assumed to be constant) does the wood exert on the bullet
A 40-N crate rests on a rough horizontal floor. A 12- N horizontal force is then applied to it. find the magnitude of the frictional force on the crate