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A boat can travel 2.20 m/s in still water.
(a) If the boat points its prow directly across a stream whose current is 1.40 m/s, what is the velocity (magnitude and direction) of the boat relative to the shore (in m/s and degrees)?
(b) What will be the position of the boat, relative to its point of origin, after 3.00 s?
A child leaves her book bag on a slide. The bag, which is at the top of the slide, starts from rest and reaches the bottom in 1.40 s. What is the friction force acting on the bag
A string is attached to the center of a solid cylinder. The cylinder sits on a horizontal surface made of concrete and rolls without slipping. find the magnitude of the static friction acting on the cylinder
Calculate the magnitude of the angular momentum of the Venus in a circular orbit around the sun. The Venus has mass 4.87×1024 kg
In a head-on collision, a car stops in 0.29 {s} from the speed of 28 {m/s}. The driver has a mass of 78 {kg}, and is, fortunately, tightly strapped into his seat. what force is applied to driver during that fraction of a second.
A 55.5 kg ice skater is moving at 3.99 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. What is the ratio of this force to her weight
Compute the momentum of the bullet
Consider an athlete who jumps a horizontal distance of 9m after reaching a maximum height of 1.5m. What was the takeoff speed v0 of the athlete
what is the equivalent resistance between points A and B?
Michael Phelps won a gold medal at the 2008 Beijiing olympics by swimming the 200 meter medley in 1:54:80. On an off-day Mike swims the medley in 1:58:32. What is the speed in mph? (Give the ans. to two decimal places)
A rock is projected from the edge of the top of a building with an initial velocity of 12.2 m/s at an angle of 53° above the horizontal, How tall is the building
m1 = 26.00 kg, m2 = 13.10 kg, R = 0.12 m, and the mass of the uniform pulley M = 5.00 kg. Calculate the time interval required for m1 to hit the floor
Three charges are situated at corners of a rectangle. How much energy would be expended in moving the 8µC charge to infinity.
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