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adelina 88 [10]
3 years ago
14

How far will a car travel from a standing start if it accelerates at 4.0m/s2 for 9.0 seconds

Physics
1 answer:
ehidna [41]3 years ago
5 0

Answer:

4*9 = 36 m/sec at 9 seconds. The average speed is (0 + 36)/2 = 18 .

Explanation:

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Space debris left from old satellites and their launchers is becoming a hazard to other satellites. (a) Calculate the speed of a
Pie

Answer:

Part a)

v = 7407.1 m/s

Part b)

v_{rel} = 1.05 \times 10^4 m/s

Explanation:

Part a)

As we know that orbital velocity at certain height from the surface of Earth is given as

v = \sqrt{\frac{GM}{R+h}}

here we know that

M = 5.98 \times 10^{24} kg

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now we have

v = \sqrt{\frac{(6.67 \times 10^{-11})(5.98 \times 10^{24})}{6.37 \times 10^6 + 9.0 \times 10^5}}

v = 7407.1 m/s

Part b)

When a loose rivet is moving in same orbit but at 90 degree with the previous orbit path then in that case the relative speed of the rivet with respect to the satellite is given as

v_{rel} = \sqrt{2} v

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6 0
3 years ago
A force vector has a magnitude of 599 newtons and points at an angle of 40.8° below the positive x axis. What is the x scalar co
ASHA 777 [7]

Answer:

F_{x}=453.44N

Explanation:

Given data

Force F=599 N

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To find

x scalar component

Solution

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The Scalar y component can be found by

F_{y}=-FSin\alpha  \\F_{y}=-599Sin(40.8)\\F_{y}=-391.4N

3 0
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The acceleration due to gravity is lower on the Moon than on Earth. Which one of the following statements is true about the mass
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5 0
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A DNA sequence is shown.
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Answer:

AAT-CAG-GT

AAT-CGA-GT

Explanation:

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6 0
3 years ago
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