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Vlad1618 [11]
3 years ago
12

3. Compare the slope of the velocity-time graph to the average of all your acceleration values. Are they close? What does the sl

ope of a velocity (or speed) vs. time graph mean? Explain the answer using your data. How does the value of g that you calculated compare to the accepted value of 9.80 m/s2? What is your percent error? Remember that the value of g can be calculated by using g = a/sinθ and percent error can be calculated using the following equation:
Physics
1 answer:
Marina86 [1]3 years ago
6 0

The slope of a speed-time graph is the acceleration represented by the graph.

All other parts of this question refer to a lab experiment or exercise
where I was not present, but Zeesam16 was.  Therefore I have no data
with which to answer the rest of the question, and hope that Zeesam can
handle it.


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Which quantity in the equation E=MC^2 represents the speed of light?
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The answer is A. C. The equation has C, which is Speed of light squared

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A plane is traveling at 80 m/s. To prepare for landing, itslows down at a rate of 0.25 ms squared for 120 seconds. Calculate the
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Answer:

<em>The speed of the plane after it decelerates is 50 m/s</em>

Explanation:

<u>Motion with Constant Acceleration</u>

When an object gains or losses velocity in time, it acquires acceleration. If this value is constant, we can calculate the final velocity (or speed in scalar terms) as:

v_f=v_o+at

Where vf is the final speed, vo is the initial speed, a is the constant acceleration, and t is the time the acceleration is acting.

The plane is originally traveling at vo=80 m/s and it slows down at a constant rate of a=-0.25\ m/s^2 during t=120 seconds. Note we have added the negative sign to the acceleration because the plane is slowing down, i.e., the acceleration is against the speed.

Thus, the final speed is:

v_f=80-0.25*120

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The speed of the plane after it decelerates is 50 m/s

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2 years ago
what is the electric force between a glass ball that has 2.5 uc charge and a rubber ball that has a -1.5 uc charge when they are
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Which has a total mass of 1612 kg. If she accelerates from rest to a speed of 12.87 m/s in 3.47 s, what is the minimum power req
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Answer:

76969.29 W

Explanation:

Applying,

P = F×v............. Equation 1

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But,

F = ma.......... Equation 2

Where m = mass, a = acceleration

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Given: u = 0 m/s ( from rest), v = 12.87 m/s, t = 3.47 s

Substitute these values into equation 3

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F = 1612(3.71)

F = 5980.52 N.

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Substitute into equation 1

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