Physics, 28.01.2020 11:31 brasherfamily14
Adriver is traveling along a straight road at the speed limit of 60 mph. after two minutes, she slows at a constant rate to a stop at a stop light. two minutes later, the light turns green and she accelerates at a constant rate back up to the speed limit. three and a half minutes later, she again slows at a constant rate to a stop. after three minutes, she performs a u-turn, then accelerates at a constant rate back up to 60 mph. two minutes later, she reaches her destination and slows at a constant rate to a stop. assume that each period of slowing down and speeding up lasts 30 s and that the driver is initially moving in the +x- direction. create a graph of the driver's velocity versus time that represents her trip.
Answers: 3
Physics, 22.06.2019 06:30
What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34
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Physics, 22.06.2019 18:00
Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?
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Physics, 23.06.2019 00:10
An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station
Answers: 1
Physics, 23.06.2019 01:30
Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.
Answers: 1
Adriver is traveling along a straight road at the speed limit of 60 mph. after two minutes, she slow...
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