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A wheel of radius r and centroidal radius of gyration k is released from rest on the incline shown at time t = 0. Assuming that the wheel rolls without sliding, determine
(a) the velocity of its center at time t,
(b) the coefficient of static friction required to prevent slipping.
A spaceship heads away from earth at 0.20C. The ship beams 400nm light towards Earth. What is the wavelength of light received by the ship
An electron has an initial velocity of 4.9 • 106 m/s in a uniform 1.9 • 105 N/C strength electric field. How far does the electron travel before coming into rest in m
A rear-wheel-drive car supports48%of its weight on its two drive wheels and has a coefficient of static friction of0.60.
two identifcal blocks with equal but opposite velocities collide and stick together. we know that they must be at rest
A tennis player swings her 1000 gram racket with a speed of 11.0 m/s. Find how fast is her racket moving immediately after the impact
Using the data in the table calculate the regression equation, including the slope and intercept terms, R squared, and the SE of the regression (SE of the estimate).
A truck driver delivering office supplies downtown travels 3 blocks south, 3 blocks west, and finally nine blocks south. What are the magnitude (in blocks) and the direction of the driver's displacement? (Enter an angle among 0 and 90°.)
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Determine the speed of the wagon after the rock is thrown
A uniform disk of mass m=0.400 kg and radius R=20.0 cm is pinned to the wall near its rim. Find the angular frequency of oscillation if the disk is set swing back and forth
A 50,000 kilogram railroad car moving at 4.0 m/s overtakes and couples with a second car of mass 60,000 kilogram that is initially moving at 2.0 m/s on the same track. Find the speed of the two cars after they are coupled
A cylindrical capacitor has an inner conductor with a radius of 2.1mm and an outer conductor with a radius of 3.1mm. Find the charge (magnitude and sign) on both conductors
a refrigerator has a coefficient of performance of 2.10. each cycle it absorbs 3.40 104 j of heat from the cold
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