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1. A spring with a spring constant k = 1600 N/mis at rest on the bottom of an inclined plane. A 7.0-kg blockslides down the plane and makes contact with the spring at point Aas shown. After contact, the spring is compressed to point B, 0.20m from point A, where the speed of the block is zero m/s. What was the speed of the block just before contact with the spring?
2. A cylinder with a diameterof 0.240 m is placed between the plates of a hydraulic press asillustrated in the drawing. A 4.45 × 105-N forceis applied to the cylinder. What is the pressure on the end of the cylinder due to the applied force?
The prong of a tuning fork moves back and forth when it is set into vibration. what are the maximum velocity and the maximum acceleration of the prong
How large a force F2 must the second crewman pull so that the net force of the two crewmen is in the forward direction.
A meat baster consists of a squeeze bulb attached to a plastic tube. While the bulb is squeezed and free, with the open end of the tube under the surface of the basting sauce.
X-rays with initial wavelength 0.0665 nm undergo Compton scattering. At which scattering angle is this wavelength observed
A window washer is standing on a scaffold supported by a vertical rope at each end. the scaffold weighs 200N and is 3.21 m long. assume the 900N worker stands 1.44 m from one end of the scaffold. what is the force on the rope farther from the work..
A river 98.2 m wide flows toward the south at 35.8 m/min. A girl on the west bank wishes to reach the east bank in the least possible time. What is her velocity relative to land
A device used in radiation therapy for cancer contains 0.38 g of cobalt-60 (59.933 819 u). Determine the activity (in Bq) of the radioactive material
A Styrofoam cup holding 100 g of hot water at 1.00 102°C cools to room temperature, 17.0°C. What is the change in entropy of the room
A horizontal force of 50 N pushes a box that weighs 75 N across the floor at a constant speed. What is the power generated by the applied force
A small circular hole 5.00 mm in diameter is cut in the side of a large water tank, 13.0 m below the water level in the tank. Find the speed at which the water shoots out of the tank
A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is compressed against the floor a distance of 2.00 cm, estimate the force constant of the spring
A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of volume of water in kilograms.
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