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pav-90 [236]
3 years ago
11

Volcano has both useful and harmful effects give reason​

Physics
2 answers:
Mama L [17]3 years ago
6 0

Answer:

useful effects of volcano are :-

  1. it makes soil fertile
  2. it provides valuable nutrients for the soil

harmful effects of volcano are:-

  1. it makes air polluted
  2. it destroy the environment .

hope it is helpful to you ☺️

alina1380 [7]3 years ago
3 0

Answer:

harmful effects

1. that will cause air pollution

2. that will destroy our earth

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A cannon fires a 40.5kg shell toward a target and the shell moves with a velocity of 120 m/s. Calculate the shells momentum
kvv77 [185]

Answer:

4860 kg m/s

Explanation:

P = mv

P = 40.5 x 120

P = 4860 kg m/s

8 0
2 years ago
If fire needs oxygen to burn, where does the sun get oxygen if there is no oxygen in space?​
elena55 [62]

Answer:

through nuclear fusion

Explanation:

The burning of the sun is not chemical combustion. It is nuclear fusion. This combustion releases energy which we experience as the heat and light given off by the flame.

5 0
2 years ago
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The centers of two 15.0 kg spheres are separated by 3.00 m. The magnitude of the gravitational force between the two spheres is
kompoz [17]
 we have to use newtons law of gravitation which is
F=GMm/r^2 
G=6.67 x 10^<span>-11N kg^2/m^2
</span>M=<span>(15kg)
</span>m=15 kg
r=(3.0m)^2<span> 
</span>putting values we have 
<span>=(6.67 x 10^-11N kg^2/m^2)(15kg)(15kg)/(3.0m)^2 </span>
=1.67 x 10^-9N 
7 0
3 years ago
Of all the radio waves, these have the shortest wavelengths and the the highest frequency?
Julli [10]
If by chance you mean any wave, the wave with the shortest wavelength/highest frequency is gamma rays.
4 0
3 years ago
A machine lifts a 35 kg object doing 6860 J worth of work. How much power is produced by the machine if it lifts the object in 4
timofeeve [1]

Answer:

Explanation:

We need the power equation for this which is

P = Work/time

We have everything we need to solve this (the mass of the object is extra information):

P = 6860/4

P = 1715W

5 0
3 years ago
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