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A car in an amusement park ride rolls without friction around the track. It starts from rest at point A at a height h above the bottom of the loop. Treat car as particle a) what is the minimum (in terms of R) such that the car moves around the loop without falling off at the top? b) If h=3.5R and r=20m, calculate the speed, radial acceleration, and tangential acceleration of the passengers when the car has gone 3/4 around the loop, which is at the end of a horizontal diameter.
A 79-kg pilot in an aircraft moving at a constant speed of 495 m/s pulls out of a vertical dive along an arc of a circle of radius 4500 m. What is the pilot's apparent weight at the bottom of the dive
Indicate whether the following statements are always true or can be false. If a net force acts on an object, the object's speed will change. If a net force acts on an object, the object's velocity will change.
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad.
A 23 bullet traveling 245 penetrates a 3.0 block of wood and emerges cleanly at 195 .If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges.
a bathyshpere dives to a depth of 1000 m in the ocean. if the inside is maintained at one atmosphere, what is the net force acting on the round window
A transverse wave travels on a string of length 1.3 m and diameter 1.1 mm, What is the linear mass density of the string
A feather is dropped on the moon from a height of 1.40 meters. find the time for the feather to fall to the surface of the moon
A 31.0 kg child runs with a speed of 3.00 m/s tangential to the rim of a stationary merry-go-round. Calculate the initial kinetic energy of the system
Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 3.60 m/s. Ignore frictional losses. What is the height of the hill?
A very small charged block with a mass of 2.10 g is placed on an insulated, frictionless plane inclined at an angle of 17.0° with respect to the horizontal, What is the sign and magnitude of the charge on the block
a thin layer of radioactive material emitting beta particles is painted on a small conducting sphere. the sphere is
The graph shows how the force component F cos along the displacement varies with the magnitude s of the displacement. Find the work done by theforce. (Hint: Recall how the area of a triangle is related tothe triangle's base and height.)
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