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A 140 g ball moving at 0.50 m/s in the + x-direction is subject to a 0.15 N force in the - y-direction for 3.0 s . a) Find the magnitude of the ball's momentum change. b) Find the ball's final speed. c) Find the angle between the ball's final velocity and the positive x direction.
what was (a) the negative charge in coulombs on one of them and (b) the positive charge in coulombs on the other.
A person driving her car at 53.0 km/h approaches an intersection while the traffic light turns yellow. She knows that the yellow light lasts only 2s before turning to red.
A parallel-plate capacitor has plates of area 0.16 m2 and a separation of 2.80 cm. What is the capacitance before the slab is inserted
The amplitude of a lightly damped oscillator decreases by 1.7% during each cycle. What percentage of the mechanical energy of the oscillator is lost
include a free body diagram. Be sure to label all forces with their agents and size. 1. A 5.0kg cat running along suddenly braces his furry feet on the slippery floot in order to stop.
The displacement of a wave traveling in the positive x-direction is y(x, t) = (3.5 cm)cos(1.7x - 129t), where x is in m and t is in s. What is the frequency of this wave
A space station, in the form of a wheel 184 m in diameter, rotates to provide an "artificial gravity" of 7.40 m/s2 for persons who walk around on the outer rim. Find the rotational frequency of wheel (in revolutions per minute) that will produce t..
The Syncom communication satellite was placed in its high-altitude geosynchronous orbit of radius 4.23 x 10^7m in two steps. What is the increase of total mechanical energy during this change of orbit
A metal container, which has a mass of 8.8 kg contains 15.1 kg of water. A 2.4-kg piece of the same metal, initially at a temperature of 180.0°C, Calculate the specific heat of the metal
The paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 39.86 m, y = 16.41 m, and t = 2.68 s.
question1a race car starts from rest on a circular track of radius 407 m. the cars speed increases at the constant rate
A 2 kg mass is held at rest on top of a frictionless and horizontal table. find the tension of the string which supports the hanging mass
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