science..physics

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1. Physics

   The drawing shows two frictionless inclines that begin at ground level (h = 0 m) and slope upward at the same angle θ. One track is longer than the other, however. Identical blocks are projected up each track with the same

2. Physics

   A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.81 m from the end of the track after falling a vertical distance h2 =

3. Physics

   An athlete swings a 3.46 kg ball horizontally on the end of a rope. The ball moves in a circle of radius 0.55 m at an angular speed of 0.35 rev/s. What is the tangential speed of the ball?

4. Math

   An athlete runs 12 laps on a 400m running track every day for 2 weeks. How many kilometers does she run in total?

1. physics - rotational motion

   A small car of mass, m, is release at height, h, on a steel track. the car rolls down the track and through the loop of radius, R. at the end of the rack, the car rolls off the track, which is positioned at height, H, above the

2. Precal

   An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200-meter running track. a) Draw a figure that visually represents the problem. Let x and y

3. physics

   The drawing shows a skateboarder moving at 5.34 m/s along a horizontal section of a track that is slanted upward by 47.7 ° above the horizontal at its end, which is 0.795 m above the ground. When she leaves the track, she follows

4. science

   an athlete of mass 70.0kg runs a 100m race in 10s. calculate the kinetic energy possessed by the athlete.

1. Physics

   A football player catches a pass 49 m from the end zone and runs down the sideline at vp = 5.6 m/s. A defending player directly across on the other sideline, 53.3 yd (48.8 m) away, runs to intercept. If the defending player runs

2. Physics

   A 283 g air track glider moving at 0.69 m/s on a 2.4 m long air track collides elastically with a 467 g glider at rest in the middle of the horizontal track. The end of the track over which the struck glider moves is not

3. Math

   Find the work done in pumping the water over the rim of a tank that is 40 feet long and has a semicircular end of radius 10 feet if the tank is filled to a depth of 4 feet

4. Pre-Calculus

   An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200-meter running track. a) Draw a figure that visually represents the problem. Let x and y

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