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If dropped weight travelled a total distance of L and the difference between its initial and final heights is h, use the work-energy theorem to calculate the frictional force F and write down the expression for the angular acceleration with frictional force calculated in terms of m, L, h, and g.
A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. determine the amplitude of the simple harmonic motion
In fact, it is found that if the heavier mass is given a downward speed of 0.21 m/s, it comes to rest in 6.7 s. What is the average frictional torque acting on the pulley
Evaluate the magnitude of the apparent weight of a 84 kg astronaut 4500 km from the center of the Earth's Moon in a space vehicle accelerating toward the Moon at 3.1 m/s^2?
A 5 kg ball is thrown upward with an initial speed of 30 meters per second. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path Draw a picture showing all the forces on the ball while it is on t..
An electrophoresis experiment is performed on two fragments of DNA with radius r1 = 16 nm and charge q1 = -7e, and r2 = 29 nm. What is the charge on the larger fragment
A spherically symmetric object, with radius = 0.50 m and mass = 1.9 kg, rolls without slipping across a horizontal floor, with velocity = 0.8 m/s. It then rolls up an incline with an angle of inclination = 28o and comes to rest a distance = 3.9 m ..
The mass of a certain planet is 6.15×1023 kg, and its radius is 2535 km. What is the acceleration due to gravity on the planet's surface
A commuter backs her car out of her garage with a constant acceleration of 1.60 m/s2. If she then brakes to a stop in 0.8 s, what is her (constant) deceleration
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal, what is the area of the leaf in square meters
A particle (m = 3.9 x 10 ^-28kg) starting from rest, What is its de Broglie wavelength at the end of this period
A young hockey player stands at rest on the ice holding a 1.3-kg helmet. The player tosses the helmet with a speed of 4.6 m/s in a direction 9° above the horizontal, and recoils with a speed of 0.22 m/s. Find the mass of the hockey player.
Determine the nature of the roots of the following quadratic equation.
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