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Liono4ka [1.6K]
3 years ago
15

A student practicing for a track meet ran 263 m in 30 sec. What was her average speed?

Physics
2 answers:
alexira [117]3 years ago
8 0

Answer:

8.3 m/s

Explanation:

Inessa05 [86]3 years ago
4 0

Answer:

8.76 m/s

Explanation:

You just divide

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the atomic mass is 11 because the mass is the sum of protons and neutrons
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The following diagram represents a cart with an initial velocity of 1.0 m/s sliding along a frictionless track from point A
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Answer:

point b

Explanation:

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Three point charges are arranged along the x-axis. Charge q1 = +3.00 uC is at the origin, and charge q2= -5.00 uC is at x= 0.200
artcher [175]
We have all the charges for q1, q2, and q3. 
Since k = 8.988x10^2, and N=m^2/c^2

F(1) = F (2on1) + F (3on1)

F(2on1) = k |q1 q2| / r(the distance between the two)^2
k^ | 3x10^-6 x -5 x 10^-6 |   / (.2m)^2
F(2on1) = 3.37 N

Since F1 is 7N,

F(1) = F (2on1) + F (3on1)
7N = 3.37 N + F (3on1)

Since it wil be going in the negative direction,
-7N = 3.37 N + F (3on1)
F(3on1) = -10.37N

F(3on1) = k |q1 q3| / r(the distance between the two)^2 
r^2 x F(3on1) = k |q1 q3| 
r = sqrt of k |q1 q3| / F(3on1) 
= .144 m (distance between q1 and q3)
0 - .144m 

So it's located in -.144m

Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 
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3 years ago
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What is one characteristic of informal writing?
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A scientist shines light from a source onto a piece of metal, and no electrons are released by the metal. Increasing the intensi
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This is the photoelectric effect, and it is best explained by the particle model of light.

<h3>What is the photoelectric effect?</h3>

The photoelectric effect refers to the emission of negatively charged particles and electromagnetic radiation that hits an object.

The photoelectric effect shows how electrons can be released from a given object when this material is absorbing electromagnetic radiation.

The photoelectric effect is a fundamental piece of evidence for understanding the nature of light particles.

Learn more about the photoelectric effect here:

brainly.com/question/1359033

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2 years ago
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