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vovangra [49]
3 years ago
10

In the stream, water waves bunched up as the water flowed by. As we

Physics
1 answer:
Paladinen [302]3 years ago
7 0
Yea it would be barrier. since the stream has a cover for the water
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Calculate the acceleration of the car for each set of conditions using the formula a = (v2 – v1) / (t2 – t1) where v2 and v1 are
Arisa [49]

Answer:  1.  0.19

               2.  0.33

               3.  0.47

               4.  0.62

Explanation:  just did it & these are the correct answers

4 0
3 years ago
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The mechanical energy of a bicycle at the top of a hill is 6,000 J. The bicycle stops at the bottom of the hill by applying the
Semmy [17]

Answer:

Thermal energy produce =4,000 J.

Explanation:

Given that

Mechanical  energy at the top of hill = 6,000 J

Mechanical  energy at the bottom of hill = 2,000 J

We know that energy is conserve

Energy at top of hill = energy at bottom of hill + Thermal energy produce

So now by putting the values

Energy at top of hill = energy at bottom of hill + Thermal energy produce

6,000 = 2,000+ Thermal energy produce

Thermal energy produce =6,000-2,000 J

Thermal energy produce =4,000 J.

As we know that thermal energy produce due to friction when one mechanical component slides on the other mechanical component then always heat is generated and this heat is known as thermal energy.

7 0
3 years ago
When a cold air mass catches up with a warm air mass, the resut is often<br> a(n)<br> front.
Alex777 [14]

Answer:

a cold front i think

Explanation:

4 0
3 years ago
Not including thinking distance, lawful brakes must stop a car at 20 miles per hour within how many feet?
Svetradugi [14.3K]

Answer:

B. 25 feet

Explanation:

In most cities in US, passenger car brakes must stop a car moving at 20 miles per hour at 25 feet.

Therefore, the correct option is "B" 25 feet

5 0
3 years ago
Read 2 more answers
4. What is the momentum of a 70 kg object traveling at 20 m/s?
Soloha48 [4]

Answer:

1400 units of momentum.

Explanation:

Using the formula p=mv. We can get the momentum using 70*20 =1400 units of momentum

6 0
3 years ago
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