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A young woman on a skateboard is pulled with a rope attached to a bicycle. The velocity of the skateboarder is rv = (4.1 m s)x$ and the force exerted on her by the rope is r F = (17 N)x$ + (12 N)y$. (a) Discover the work done on the skateboarder with the rope in 25 seconds. (b) Assuming the velocity of the bike is the same as that of the skateboarder discover the work the rope does on the bicycle in 25 seconds.
A person 1.8 m tall stands 0.74 m from a reflecting globe in a garden. How large is the person's image
A series RCL circuit has a resonant frequency of 2200 Hz. When operating at a frequency other than 2200 Hz, the circuit has acapacitive reactance of 5.50 ohms and an inductive reactanceof 35.0 ohms.
An airplane, diving at an angle of 48° with the vertical, releases a projectile at an altitude of 670 m. The projectile hits the ground 3.43 s after being released. What is the speed of the aircraft?
An Argon ion laser has a gain bandwidth of 2 GHz. Find the number of standing wave cavity modes within the gain bandwidth of the argon ion laser
A 0.40 kilogram ball is thrown with a speed of 9.0 m/s at an upward angle of 33 degree. Determine what is its speed at its highest point
A Circuit has two identical capacitors with capacitance 4x10^-6 in parallel connected to two identical four ohm resistors in parallel. What is the initial charge on the capacitors
the drawings show three charges that have the same magnitude but may have different signs. in all cases the distance d
A 65 kg person sits 0.5 m from the edge of a 2 m long beam that extends fom a building. how much the tension causes the cable to stretch
My clothes washer spins the wash at a speed of 833rev/min to remove the water. The drum is 21.5 inches in diameter. What is the acceleration of the clothes at the drum
a weather vane initially at rest has a moment of inertia of 0.104 kg middot m2 about its axis of rotation. a 47.0 g
A star is moving away from Earth at a speed of 2.4 X 10^8 m/s. find the wavelength as measure by an Earth observer
A block is pushed up a frictionless 30° incline by an applied force as shown. If F = 25 N and M = 3.0 kg, what is the magnitude of the resulting acceleration of the block
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