Physics, 06.10.2019 08:30 Anshuman2002
In a stunt being filmed for a movie, a sports car overtakes a truck towing a ramp, drives up and off the ramp, soars into the air, and then lands on top of a flat trailer being towed by a second truck. the tops of the ramp and the flat trailer are the same height above the road, and the ramp is inclined 17° above the horizontal. both trucks are driving at a constant speed of 17 m/s, and the flat trailer is 19 m from the end of the ramp. neglect air resistance, and assume that the ramp changes the direction, but not the magnitude, of the car's initial velocity. what is the minimum speed the car must have, relative to the road, as it starts up the ramp?
Answers: 1
Physics, 22.06.2019 10:20
Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?
Answers: 1
Physics, 22.06.2019 12:00
In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c
Answers: 1
Physics, 22.06.2019 21:30
In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane
Answers: 1
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
In a stunt being filmed for a movie, a sports car overtakes a truck towing a ramp, drives up and off...
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