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Norma-Jean [14]
2 years ago
6

Four students measured the acceleration of gravity. The accepted value for

Physics
1 answer:
Ratling [72]2 years ago
7 0
Answer: The student with the largest measurement of percentage error is student 4. Option A is correct.The percent error shows the disparity between the observed value and the actual value. It is given by the expression.

Therefore, we can conclude that the student's measurement that has the largest percent error is student 4.







Explanation:

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A wave traveling in water has a frequency of 500.0 Hz and a wavelength of 3.00 m. What is the speed of the wave?
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Answer:

1500 m/s

Explanation:

Recall that for a wave,

Speed = frequency x wavelength

here we are given frequency = 500 Hz and wavelength = 3m

simply substitute into above equation

Speed = 500 Hz x 3m

= 1500 m/s

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To understand length contraction and time dilation. An inertial frame of reference is one in which Newton's laws hold. Any frame
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Answer:

l = l0 ( 1 - u^2/v^2) ^0.5

Explanation:

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Explain radiation and which is the hotest source in the world
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3 years ago
Object A attracts object B with a gravitational force of 5 newtons from a given distance. If the distance between the two object
alukav5142 [94]

The new force of gravitational attraction is D. 20 newtons

Explanation:

The magnitude of the gravitational force between two objects is given by :

F=G\frac{m_1 m_2}{r^2}  (1)

where

G=6.67\cdot 10^{-11} m^3 kg^{-1}s^{-2} is the gravitational constant

m1, m2 are the masses of the two objects

r is the distance between them

In this problem, the initial gravitational force between the two objects A and B is

F = 5 N

When the distance between them is r.

Later, the distance is reduced in half:

r' = \frac{r}{2}

Substituting into eq.(1), we see how does the  force change:

F' = G\frac{m_1 m_2}{r'^2}=G\frac{m_1 m_2}{(r/2)^2}= 4 (G\frac{m_1 m_2}{r^2})=4F

So, the force increases by 4 times. Therefore, the new force is

F'=4F=4(5 N) = 20 N

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

3 0
3 years ago
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