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A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38kg. The ball approaches the cushion with a velocity of +2.30 m/s and rebounds with a velocity of -1.90 m/s. The ball remains in contact with the cushion for a time of 3.20 x 10^-3 s. What is the average net force (magnitude and direction) exerted on the all by the cushion?
An intergalactic rock star bangs his drum every 1.70s. A person on earth measures that the time between beats is 2.5s. How fast is the rock star moving relative to earth.
A physics book slides off a horizontal tabletop with a speed of 2.70m/s . It strikes the floor in 0.350s. Find the direction of book's velocity, just before the book reaches the floor
Two point charges have a total charge magnitude of 576 µC. When placed 1.19 m apart, the force each exerts on the other is 20.2 N and is repulsive. What is the charge magnitude on each? Please include solution.
If the highest acceleration the vehicle's brakes are capable of is -5 m/s2, what is the maximum reaction time of motorist that will allow her or him to keep away from hitting the deer.
If the combination with this amount of turpentine is after that cooled back to 19°C, how far below cylinder's rim does the turpentine's surface recede.
A charge of -3.80 nC and a charge of -6.00 nC are separated by a distance of 60.0 cm. Find out the position at which a third charge of +7.30 nC could be placed so that the net electrostatic force on it is zero.
A 1200 kg car is pulling a 500 kg triler along level ground. Friction is negligible. What is the magnitude of the force exerted by the car on the trailer
A 29 g rifle bullet travelling 270 m/s buries itself in a 3.50 kg pendulum hanging on a 2.6 m long string, which makes pendulum swing upward in an arc. Find out the horizontal component of the pendulum's displacement.
Two point charges are on the y-axis. A 6.0 µC charge is located at y = 1.35 cm, and a -2.20 µC charge is located at y = -1.00 cm. (a) Find the total electric potential at the origin. (b) Find the total electric potential at the point having coordi..
A block with mass m = 4.6 kg is attached to two springs with spring constants kleft = 37 N/m and kright = 51 N/m. What is the effective spring constant of the two springs
A 500.0 g mass at the end of a spring vibrates 3.0 times per second, What is the maximum velocity of this mass
Calculate the power required by an object to lift another object
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