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A skater with an initial speed of 7.10 m/s stops propelling himself and begins to coast across the ice, eventually coming to rest. Air resistance is negligible.
(a) The coefficient of kinetic friction between the ice and the skate blades is 0.0750. Find the deceleration caused by kinetic friction.
(b) How far will the skater travel before coming to rest?
The leg and cast weigh 290 -N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 120 N. Determine the weight w1 and angle α needed in order that there is no force exerted on the hip joint by the le..
what the electrostatic force acts on the proton.
A small conducting spherical shell withinner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radiusd, calculate the electric field (magnitude and direction) in termsof..
An induction cooktop generates an alternating magnetic field B(t)=(0.25 T)cos??t. Calculate the maximum emf induced in a pan modeled as a ring of radius 10 cm
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 110 V. What is the current through the lightbulb
An oil-filled capacitor has square parallel plates 26{\rm cm} on a side, separated by 0.47{\rm mm}. Find the dielectric constant of the oil
You set up an experiment with two polarizer screens on an optical bench and collect data for the intensity of the light, What is ambient light in the room as you took your data
An infinitely long line of charge has a linear charge density of 5.50×10-12 C/m. A proton is at distance 17.5 cm from the line and is moving directly toward line with speed 2900 m/s.
Water discharges from a horizontal pipe at the rate of 5.00 x 10-3 m3/s. At point A in the pipe where the cross-sectional area is 2.00 x 10-3 m2, What is the velocity of the water at point A
A car traveling at a constant speed of 27.0 m/s passes a trooper hidden behind a billboard. From the intersection of the two curves, read the time at which the trooper overtakes the car
You push with a horizontal force of 50.0N against a 24.0N box, pressing it against a rough wall to hold it in place. what is the friction force of the box
A 85-kg person sits on a 3.7-kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.4 cm in diameter
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