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1) A gymnast performing a routine on the high bar feels weightless at the highest point of their rotation. The radius of rotation from the bar to the center of mass of the gymnast is 1.7 meters.
A - Why does the gymnast feel weightless at the highest point of their rotation around the bar? What is the cause of this phenomenon?
A 25 g bullet strikes and becomes embedded in a 1.65 kg block of wood placed on a horizontal surface just in front of the gun, what was the muzzle speed of the bullet
At a certain distance from a charged particle, the magnitude of the electric field is 546 V/m and the electric potential is -2.60 kV, What is the distance to the particle
a meter rule hangs motionless supported at 30cm mark. It has a 0.02kg mass hanging from the 0meter mark
Using the kinematic equation, prove that if two balls are released simultaneously from table, one with zero velocity and the other with a horizontal velocity, they would both reach the ground at the identical time.
A potter's wheel having a radius 0.49 m and a moment of inertia of 12.6 kg · m2 is rotating freely at 48 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
Find out the resulting values of the processional rate
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A rock of mass 43.00 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252N. What is the magnitude of the acceleration of the rock.
Two thermally insulated reservoirs each contain 2 kg of water at temperatures of 80 °C and 20 °C respectively, Determine the find equilibrium temperature and find the change in entropy of the local universe in the mixing process
Astronaut Ann wishes to travel from one side of her spaceship to the other side so she pushes herself away from a wall, What is Ann's speed relative to Bob as she drifts across the spacehip
The electric potential difference across the cell membrane of a human cell is 0.080 V, with the higher potential being outside the cell. How much work must be done by the cell to eject the ion
Bob can throw a 460 g rock with a speed of 32 m/s. What is Bob's maximum power output as he throws the rock in kW
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