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andrezito [222]
3 years ago
9

How can we measure magnitude of displacement from a v-t curve?​

Physics
1 answer:
Ratling [72]3 years ago
4 0

Answer:

The displacement can be calculated by measuring the area of the curve when we move along the t curve. So, that would give the displacement.

Explanation:

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What is the average speed of a car that travelled 400 miles in 6 hours?
Reil [10]

Answer:

About 66 miles per hour

Explanation:

Based on the information given we can assume the car traveled the same number of miles every hour meaning all we need to do is divide.

400/6 ≈ 66 miles per hour

8 0
3 years ago
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An 80-kg quarterback jumps straight up in the air right before throwing a 0.43-kg football horizontally at 15 m/s . Suppose that
RUDIKE [14]

Answer:

0.0241875 m

Explanation:

m_1 = Mass of quarterback = 80 kg

m_2 = Mass of football = 0.43 kg

v_1 = Velocity of quarterback

v_2 = Velocity of football = 15 m/s

Time taken = 0.3 seconds

In this system as the linear momentum is conserved

m_1v_1+m_2v_2=0\\\Rightarrow v_1=-\frac{m_2v_2}{m_1}\\\Rightarrow v_1=-\frac{0.43\times 15}{80}\\\Rightarrow v_1=0.080625\ m/s

Assuming this velocity is constant

Distance=Velocity\times Time\\\Rightarrow Distance=0.080625\times 0.3\\\Rightarrow Distance=0.0241875\ m

The distance the quarterback will move in the horizontal direction is 0.0241875 m

4 0
3 years ago
A rock falls for 3 seconds. What was its velocity when it hit the ground?
malfutka [58]

Answer:

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Explanation:

5 0
3 years ago
What is the purpose of chloroplasts, and why do you think it is missing from the root hair cell?
Karolina [17]

Explanation:

Mitochondria are essential parts of many eukaryotes, but they are useless without oxygen. Therefore, chloroplasts are extremely important. They produce breathable air for life. Root hairs are seen to not have chloroplasts as their job is to collect water and nutrients.

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8 0
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In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the w
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Explanation:

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The work done will be converted to kinetic energy.

W.D = 1/2mv^2

6 0
3 years ago
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