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A 7.00 kg hanging weight is connected by a string over a pulley to a 4.00 kg block that is sliding on a flat table. If the coefficient of kinetic friction is 0.166, discover the tension in the string.
A 10 gram bullet is fired into a ballistic pendulum made froma 4 kg wood block and two light cords. The block’s vertical displacement is 5 cm. What is the initial velocity of the bullet ? What percentage of the bullet’s initial kinetic energyis lo..
A 640-g hollow ball 21cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz
A ball is thrown from the top of a building upward at an angle of 46 degrees to the horizontal and with an initial speed of 30m/s. the speed of the ball just before it strikes the ground
A flywheel 0.600 m in diameter pivots on a horizontal axis. Arope is wrapped around the outside of the flywheel, What is its moment of inertia about the rotation axis
a proton moving with a velocity of 4.0times104 ms enters a magnetic field of 0.20 t. if the angle between the velocity
A race car starts from rest on the circular track of radius 455m. The car's speed increases at the constant rate of 0.480m/s2. At the point where magnitudes of the centripetal and tangential accelerations are equal.
The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. Illustrate at what height above the surface of the earth does the balloon have a speed of 8.90 m/s?
A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed on the cart. What is the velocity of the cart at that time
At a recent rock concert, a dB meter registered 122 dB when placed 2.20 m in front of a loudspeaker on the stage. Determine the power output of the speaker
A camera's flash uses the energy stored in a 270µF capacitor charged to 170V. The current in the charging circuit is not to exceed 23mA. What's the resistance in the charging circuit
Two particles of masses m and 3.00m are moving toward each other along the x-axis with the same speed v. They undergo a head on elastic collision and rebound along the x- axis. Find out the final speed of the heavier object.
A cube with a side of 15 cm floats at the surface between water and oil. The oil has a density of 810 kg/m3. what is the buoyant force on the cube
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