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1. A pushing force of 12 N is applied on a box for 32 ms. What is the magnitude of the impulse of this force?2. A game of pocket billiards begins when the white ball, called the cue ball, is rolled toward a set of 15 numbered balls arranged in a triangle. Let the set of 16 balls in the game represent a system, and let equal the momentum of the cue ball. What is the momentum of the system just after the cue ball strikes the numbered balls? Assume that friction and other nonconservative forces are negligible.
Carbon disulfide (CS2) has a vapor pressure of 300 Torr at room temperature (almost half of atmospheric pressure). estimate the average time between collisions
A projectile of mass m is shot straight up with initial velocity vo and feels a quadratic air resistance force of the form F =-kv2, where k=mg/u2. Find the speed of the projectile at time t while the projectile is still moving upwards
A car starts at a point with polar coordinate (36 m, 0o) and travels around the circle to the point (36 m, 180o). What is the distance (arc length) traveled by the car
A rocket accelerates upwards from rest at 20 m/for 4 seconds then its engine shuts off. find the maximum height reached by the rocket
A potter's wheel is rotating arounda vertical axis through its center at a frequency of 1.8 rev/s. What is the frequency of the wheel after the claysticks to it
A particle known as a pion lives for a short time before breaking apart into other particles. Suppose a pion is moving at a speed of 0.993c, What is the lifetime according to a hypothetical person who is riding along with the pion
a spaceship of mass 2.25 x 106 kg is to be accelerated to a speed of 0.770c.a what minimum amount of energy does this
The top surface of a calm, smoothly flowing stream is always at atmospheric pressure. As water in this stream runs into a tree stump and slows almost to a stop, the water's top surface
The automobile afterwards undergoes a uniform acceleration of -4 m/s2 because of a red light and comes to rest. It remains at rest for 54.6s and next accelerates back to a speed of 25.6m/s at a rate of 2.85m/s2.
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +22.2 km/s to -20.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) du..
A mass attached to a spring stretches 2.5 cm from equallibrium. What is the angular frequency of the oscillation
question a 0.4000 m solution of nitric acid is used to titrate 50.00 ml of 0.237 m barium hydroxide assume volumes are
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