Physics, 29.06.2019 14:00, ErikHabdlowich
Acar of 1000 kg with good tires on a dry road can decelerate (slow down) at a steady rate of about 5.0 m/s2 when braking. if a car is initially traveling at 20 m/s (45 mi/h), (a) how much time does it take the car to stop? (b) what is its stopping distance? (c) what is the deacceleration? (d) how big is the net force to be applied to stop this car? (e) calculate the work done by this force (work = force * distance). (f) during the stopping process, what happens to the car's kinetic energy?
Answers: 2
Physics, 22.06.2019 03:30, itsRyanPlayzMC9660
Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.
Answers: 1
Physics, 22.06.2019 10:00, ceasar6071
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
Acar of 1000 kg with good tires on a dry road can decelerate (slow down) at a steady rate of about 5...
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