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A force F = ( 2 i + 2 j ) N acts on a particle that undergoes a displacement ?r = (-6 i - j ) m.
(a) Find the work done by the force on the particle.
J
(b) Find the angle between F and ?r.
°
A swimming pool has dimensions 29 m x 34 m and a flat bottom, what is the total force due to the water on the bottom
Two 1.6 kg bodies, A and B, collide. The velocities before the collision are vector vA = (18i hat + 35j hat) m/s and vector vB = (-10i hat + 10.0j hat) m/s.
A light bulb has a resistance of 260 . It is connected to a standard wall socket (120 V rms, 60.0 Hz, Determine the rms current in the bulb
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An AC voltage of the form ?V = (85 V) sin (310 t) is applied to a series RLC circuit. If R = 46 ?, C = 29 µF, and L = 0.27 H, find the impedance of the circuit
A 0.050-kg bullet is shot to the right toward a 1.5-kg target initially at rest on a flat frictionless surface. calculate the impulse experienced by the target
The concrete wall of a building is 0.136 m thick. The temperature inside the building is 22.3 °C, while the temperature outside is 0.0 °C. What is the emissivity of the wall
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A boat is traveling upstream at 20 km/h with respect to the water of a river. The water is flowing at 4.0 km/h with respect to the ground. What is the speed of the boat with respect to the ground
q1. a 36.0 kg uniform beam is attached to a wall with the hinge while its far end is supported by a cable such that the
A passenger plane lands on the runway at 300kmhrô???1. In a glass of water in the cabin, calculate the deceleration of the plane
An Astronomer is in a spaceship that is orbiting around a planet with a period of 34 hours. What is the mass of the planet
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