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A skier is gliding along at 3 m/s on horizontal frictionless now. He suddenly starts down a 10o incline. His speed at the bottom is 15 m/s.
a) Determine what is the length of the incline?
b) Compute how long does it take for him to reach the bottom?
A patient with a dislocated shoulder is put into a traction apparatus, How large should these pulls be
Compute magnitude of the average velocity
steel train rails are laid in 12m long segments placed end to end. the rails are laid on a winter day when their
Two equal positive charges of magnitude q1 = q2 = 6 nC are on the y axis at y1 = +3 cm and y2 = -3 cm. (a) What is the magnitude and direction of the electric field on the x axis at x = 6 cm? b) What is the force exerted on a third charge q0 = 4 n..
Two 68 g ice cubes are dropped into 234 g of water in a thermally insulated container. If the water is initially at25°C, and the ice comes directly from a freezer at -15°C, what is the final temperature at thermal equilibrium?
A 4.90-g lead bullet traveling at 550 m/s is stopped by a large tree, what is the increase in temperature of the bullet
When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. What is the speed of the lighter car just after collision
a particular satellite was placed in a circular orbit about 145 mi above earth. a determine the orbital speed of the
How many grams of gasoline are required to impart a velocity of 26 meters/sec (60 miles per hour) using the same engine and neglecting losses that may be higher at the higher velocity
It takes a force of 65.5N to compress the spring of a toy popgun 0.200m to "load" a 0.190kg ball. With what speed will the ball leave the gun
In an oscillating LC circuit, L = 3.20 mH and C = 2.20 µF. At t = 0 the charge on the capacitor is zero and the current is 2.40 A. (a) What is the maximum charge that will appear on the capacitor?
A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular acceleration. What is the angular acceleration of the wheels
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