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A speed skater moving across frictionless ice at 8.80 hits a 4.20-m-wide patch of rough ice. She slows steadily, then continues on at 5.90. What is her acceleration on the rough ice?
A potter's wheel is rotating at 3.2 rad/s in a counterclockwise direction when the potter turns it off and lets it slow to a stop. This takes 26 seconds. What is the average angular acceleration of the wheel during this time?
Two spherical drops of mercury each have a charge of 0.14nC and a potential of 310V at the surface. What is the potential at the surface of the new drop
What is the terminal speed for an 84.00 skier going down a 38.0 degree snow-covered slope on wooden skis = 0.06? Assume the skier is 1.70 m tall and 0.500 m wide.
What is the approximate radius of Earth? Its mass is 6.0*10^24 kilograms and the acceleration due to gravity at its surface is 9.8 m/s2
Jupiter has mass M, radius R and orbital period T, while the Sun has mass m, radius r and orbital period t. Calculate the ratio of the centrifugal acceleration to the gravitational acceleration at the equator of
You apply a constant force F? =(?68.0N)i^+(36.0N)j^ to a 400kg car as the car travels 47.0m in a direction, How much work does the force you apply do on the car
The impact on light fixture swing
Two point charges = 2.10 and = -6.40 are 0.100 apart. Point is midway between them; point is 0.080 from and 0.070 from. Take the electric potential to be zero at infinity.
Object A with mass 9*mo is moving in positive x direction at speed of 0.8c. Object B with mass 1.2*mo is moving toward negative x direction with speed of 0.6c, Find the kinetic energy of the system before and after the collision
The string connecting the m1 and the m2 passes over a light frictionless pulley. Given m1 = 1.77 kg, m2 = 7.24 kg, m3=2.23 kg, and g = 9.8 m/s2. The acceleration of gravity is 9.8 m/s2 . Find the downward acceleration of m2 mass.
What is the period of oscillation of the scale? State your reply numerically in seconds.
A small omnidirectional stereo speaker produces waves in all directions that have an intensity of 8.50W/m2 at a distance of 4.00m from the speaker. At what rate does this speaker produce energy
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