3 years ago

Which of the following is strenuous?

Physics

2 answers:

Arada [10]3 years ago

7 0

Answer:

I think it c

Explanation:

Rainbow [258]3 years ago

6 0

Answer:

Atraining for an athletic competition

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Scientific notation for 0.000468

Lubov Fominskaja [6]

I think that’s the correct answer

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3 years ago

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Sonbull [250]

Answer:

1.Stronger bones 2.Joint flexibility

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2 years ago

The force of attraction between a -130.0 C and +180.0 C charge is 8.00 N. What is the separation between these two charges in me

kondaur [170]

Answer with Explanation:

The force of attraction between 2 charges of magnitude $q_1,q_2$ separated by a distance 'r' is given by

$F=\frac{1}{4\pi \epsilon _o}\frac{q_1\times q_2}{r^2}=k\frac{q_1\times q_2}{r^2}$

where

$\epsilon _o$ is a constant known as permitivity of free space

$k=9\times 10^{9}Nm^2/C^2$

Applying the given values in the above relation we get

$8=9\times 10^{9}\times \frac{130\times 180}{r^{2}}\\\\r^{2}=\frac{9\times 10^{9}\times 130\times 180}{8}\\\\r^{2}=26325\times 10^{9}\\\\\therefore r=\sqrt{26325\times 10^{9}}=5.131\times 10^{6}meters$

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3 years ago

If potential energy at point A is 12 joules, what is the potential energy at D?

Irina-Kira [14]

Answer:

In D: 3J

Explanation:

Potential energy: Ep=mgh where m is the mass, h altitude.

In point A: h=20cm=0.2m

Epa=12=0.2×mg. Thus mg=12/0.2=60N

For point D: hd=5cm=0.05m

Epd=mg×0.05=60×0.05=3J

5 0

3 years ago

A image formed in a plane mirror is larger than the object ture or false<br><br><br>

Lesechka [4]

Answer:

false

Explanation:

8 0

2 years ago