Physics, 14.09.2019 07:30 wallacelizzy1
Acar that weighs 1.0 x 10^4 n is initially moving at a speed of 38 km/h when the brakes are applied and the car is brought to a stop in 20 m. assuming that the force that stops the car is constant, find (a) the magnitude of that force and (b) the time required for the change in speed. if the initial speed is doubled, and the car experiences the same force during the braking, by what factors are (c) the stopping distance and (d) the stopping time multiplied? (there could be a lesson here about the danger of driving at high speeds.)
Answers: 3
Physics, 22.06.2019 02:00
Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?
Answers: 3
Physics, 22.06.2019 11:10
While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.
Answers: 3
Physics, 22.06.2019 15:00
You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?
Answers: 1
Acar that weighs 1.0 x 10^4 n is initially moving at a speed of 38 km/h when the brakes are applied...
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