Q1. A car travels d=10km[E] then d=20km[N] What is the displacement travelled *
a) 30km
b) 3...
Physics, 30.04.2021 17:40 dedgefield
Q1. A car travels d=10km[E] then d=20km[N] What is the displacement travelled *
a) 30km
b) 30km[NE]
c) 22km[NE]
d) 22km[E63oN]
Q2. A boat travels west at 20km/h. The journey lasts 3hours. How far has the boat travelled? *
a) 60km
b) 60km[W]
c) 17km[W]
d) 6.6km[W]
Answers: 2
Physics, 21.06.2019 17:00
Ajogger accelerates from rest to 4.86 m/s in 2.43 s. a car accelerates from 20.6 to 32.7 m/s also in 2.43 s. (a) find the magnitude of the acceleration of the jogger. (b) determine the magnitude of the acceleration of the car. (c) how much further does the car travel than the jogger during the 2.43 s?
Answers: 2
Physics, 22.06.2019 19:00
Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
Answers: 1
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Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created
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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
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