Physics, 14.10.2019 05:00 cvrlxzzz6507
Aroller coaster starts down a hill at 10 m/s. three seconds later, its speed is 32 m/s. what is the roller coaster’s acceleration?
question 1 options:
-7.3 m/s
-7.3 m/s2
3 m/s
3 m/s 2
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question 2 (2 points) question 2 unsaved
natalie accelerates her skateboard along a straight path from 4 m/s to 0 m/s in 25.0 s. find the acceleration.
question 2 options:
-6.25 m/s2
0.16 m/s2
-0.16 m/s2
6.25 m/s2
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question 3 (2 points) question 3 unsaved
find the average acceleration of a northbound subway train that slows from 12 m/s to 9.6 m/s in 0.9 s
question 3 options:
-2.7 m/s2
2.7 m/s2
-2.7 m/s
2.7 m/s
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question 4 (2 points) question 4 unsaved
what is a chicken’s rate of acceleration that speeds up from 4 mph (mi/h) to a top speed of 9 mi/h in 0.5 hr?
question 4 options:
2.5 mi/h/s
-2.5 mi/h/s
2.5 mi/h2
10 mi/h2
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question 5 (2 points) question 5 unsaved
which units would be appropriate to measure acceleration?
question 5 options:
m/s with direction
m/s2
kg (m/s)
m/s
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Answers: 1
Physics, 21.06.2019 19:00
Prompta snowboarder stands at the top of a hill and decides to see if he can increase his speed on his next trip down the slope.describe one thing the snowboarder could do to incrlase his speed on the slope. explain why this would cause his speed toincrease relate one of newton's laws to this problem.
Answers: 2
Physics, 22.06.2019 09:00
Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?
Answers: 3
Physics, 22.06.2019 10:30
Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.
Answers: 1
Physics, 22.06.2019 12:30
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
Aroller coaster starts down a hill at 10 m/s. three seconds later, its speed is 32 m/s. what is the...
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