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A car is traveling at 58.36 mph. The driver applies the brakes and the car decelerates at 4.25 m/s^2. What is the stopping distance in meters?
A 450 lb boy pushes on a 300 lb box with a force of 125 lb. If the box slides across the floor with constant velocity, what is the net force on the box
A 35.0g bullet moving at 475 m/s strikes a 2.5kg bag of flourthat is on ice, at rest. The bullet passes through the bag, andexits it at 275 m/s. How fast is the bag moving when the bulletexits?
A horizontal, 10 - m plank weighs 100N. It rests on two supports that are placed 1.0m from each end. What is the torque of the weight of the plank
A simple pendulum of length l and mass m is attached to a massless spring with elastic constant k. The attachment point moves only in a vertical direction. Obtain the Hamiltonian for the system
An airplane with a speed of 73.2 m/s is climbing upward at an angle of 40° counterclockwise from the positive x axis. Calculate the distance along the ground
a circular wire coil with resistance 1.4 and an area 5.0x10^-3m^2 lies perpendicular to a magnetic field that's increasing at 2.0T/s, how many turns are in the coil?
1.calculate the orbital radius of the hydrogen atom for the second principal quantum number.2.calculate the orbital
A star lying 35pc from the Sun has proper motion of 0.2"/yr. calculate the magnitude of its three-dimensional velocity relative to the Sun
the drive train of a bicycle that has wheels 67.3 cm in diameter and pedal cranks 17.5 cm long. Calculate the speed of the bicycle relative to the road
A closed box is filled with dry ice at a temperature of -80.4 oC, while the outside temperature is 20.8 oC. Find the thermal conductivity of the material from which the box is made
The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. What is the magnitude of the electric field within the cell membrane
A flywheel rotates at 50 rad/s. It is brought to rest by a constant frictional torque after making 10 complete revolutions. How long did it take to stop the flywheel
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