Determine the x and y components of both vectors
Vector A is 7.0 cm long and points along the negative x axis. Vector b is 8.5 cm long and points at +77 to the positive x axis. Determine the x and y components of both vectors
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A 0.25 kg stone attached to a 0.8 m long string is rotated in a horizontal plane. The string makes an angle of 24° with the horizontal. Determine the speed of the stone.
A pulley system has an efficiency of 87.5% how much of the rope must be pulled in if a force of 648N is needed to lift a 150kg desk 2.46m?
A 60.0 kg crate rests on a level floor at a shipping dock. the coefficients of static and kinetic friction are 0.760 and 0.410, respectively. what horizontal pushing force is required to (a) just start the crate moving and (b) slide the crate acro
An ocean liner leaves New York City and travels 16.1 ° north of east for 233 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions (a) due
Two charges are placed on the x axis. One of the charges q1= +8.5 C is at x1 = + 3.0 cm and the other q2= -21C is at x1 = +9. 0 cm. Find the net electric field (magnitude and direction) at
An archer shoots a 0.10 kg arrow with a speed of 60.0 m/s at a 0.40 kg apple resting on a post 1.7 m high. If the arrow sticks in the apple, how far from the post will the arrow and apple fall?
A car can decelerate at -4.20 m/s2 without skidding when coming to rest on a level road. What would be the magnitude of its deceleration if the road were inclined at 11° uphill? Assume the same static friction coefficient.
a motorist driving along a straight road at a constant speed of 60 m/s. At time t=0 she passes a parked motorcycle police officer and begins to accelerate at a constant acceleration a. the officer takes off after her at t=0 and accelerates at a c
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If a child's achievement is below what would be expected given their level of intellectual functioning (as derived from an IQ test such as the WISC-IV)
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