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A 15-kg block rests on a level frictionless surface and is attached by a light string to a 5.0-kg hanging mass where the string passes over a massless frictionless pulley. If g = 9.8 m/s2, what is the resultant acceleration of the object.
A fire hose held near the ground shoots water at a speed of 6.2 m/s.At what angle(s) should the nozzle point in order that the water would land 2.5 m away.
The position of a particle as it moves along a y axis is given by y = (2.0 cm) sin (?t/4), What is the instantaneous acceleration of the particle at t = 0, 1.0, and 2.0 s
Please helps me out for determining the following if the capacitor in the circuit below is initially uncharged.
A plastic bar that is 20 cm long passes a total charge of 5.0 nC distributed evenly along its length, Find the x component of the electric field at point (0.0m,0.10m)
A charge of +378 C is fixed at the center of a square that is 0.64 m on a side. How much work is done by the electric force as a charge of +1.8 C is moved from one corner of the square to any other empty corner?
Find the maximum altitude reached by the rocket.Find its total time of flight.
when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much must we compress the spring?
Usain Bolt is running a 100m dash. He accelerates to top speed over the first 45 m, then runs at a constant speed for the last 55 m, What is his top speed
Two people push a stalled car at its front doors, each applying a 260 N force at 25 degree to the forward direction. How much work does each person do pushing car 5.5 m.
Find the differential equation and use the initial conditions to determine the constant of integration.
One cubic meter of water (see Table 4.4 for the mass density of water) flowing over the Osprey Falls in Yellowstone National Park drops 46 m, what is the temperature increase of the water
A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to han..
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