Physics, 25.06.2019 08:40 abbygriffin2009

As you drive your car along a country road at night, a deer jumps out of the woods and stands in the middle of the road ahead of you. this occurs just as you are passing from a 55-mi/h zone to a 50-mi/h zone. at the 50-mi/h speed-limit sign, you slam on the car's brakes, causing them to lock up, and skid to a stop inches from the startled deer. as you breathe a sigh of relief, you hear the sound of a police siren. the policeman proceeds to write you a ticket for driving 56 mi/h in 50-mi/h zone. because of your preparation in physics, you are able to use the 33.5-m-long skid marks that your car left behind as evidence that you were not speeding. based on your evidence, at what speed were you actually driving? (the coefficient of friction between between automobile tires and dry concrete is 0.80.)

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 22:30

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Answers: 1

Answer

Physics, 22.06.2019 12:30

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Answers: 1

Answer

Physics, 22.06.2019 20:30

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.

Answers: 2

Answer

Physics, 22.06.2019 22:30

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation

Answers: 3

Answer

You know the right answer?

As you drive your car along a country road at night, a deer jumps out of the woods and stands in the...

Questions