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An extreme skier, starting from rest, coasts down a mountainthat makes an angle 25.0° with the horizontal. The coefficientof kinetic friction between her skis and the snow is 0.200. Shecoasts for a distance of 11.4 m beforecoming to the edge of a cliff. Without slowing down, she skis offthe cliff and lands downhill at a point whose vertical distance is4.50 m below the edge. How fast is shegoing just before she lands?
A 1.15 K? resistor and a 505 mH inductor are connected in series to a 1250 Hz generator with an rms voltage of 14.2 V. What is the rms current in the circuit
person 1.6 m tall stands 5.2 m from a reflecting globe in a garden. How large is the person's image
A small block of mass m slides along a frictionless loop-the-loop track. If it starts from rest at point P. What is the resultant force at point Q
You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.51 times the passenger's weight. What is the maximum speed of the elevator
One object is at rest, and another is moving. The two collide in a one-dimensional, completely inelastic collision. when the small-mass object is the one moving initially
Suppose a 10 kg mass is hung from the end of a vertical oriented, massless spring. If the spring stretches 10 cm, what is the spring constant of the spring? 2) A 1- kg mass is placed at the end of a vertically oriented, massless spring.
A block has an initial speed V(o) > 0 on a linear trajectory on the surface with friction coefficient u and air resistance (F = cv^2). Derive an equation that will represent the velocity (V) as a function of the position of the block (x). So V(x).
The mass of a copper atom is 1.06 x10^25 kg, and the density of copper is 8 920 kg/m3. Find the edge dimension of each cube
A steel ball is dropped onto a hard floor from a height of 1.25 m and rebounds to a height of 1.16 m. (Assume that the positive direction is upward.) Calculate its velocity just before it strikes the floor
A point charge, q1 = +2C, is placed at the origin (0m,0m), a second point charge, q2 = -3C, is located at (2m, 0m), and a third point charge, q3 = -4C, is located at (0m, 3m)
A 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rpm. What centripetal force must she exert to stay on if she is 1.25 m from its center
A girl is using a rope to pull a box that has mass of 35kg across a level surface with constant velocity. What is the normal force of the floor on the box
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