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balandron [24]
3 years ago
14

PLEASE HELP ME I NEED THIS ASAP!!!!

Physics
2 answers:
pshichka [43]3 years ago
5 0

Answer:

Sound energy is the movement of energy through a substance – such as air or water – in the form of waves. It is produced when a force causes an object or substance to vibrate.

Explanation:

sound energy can be air conditioning fan, balloon popping and a buzzing bee

hope this helps:)

Zina [86]3 years ago
3 0

Answer:

loud bangs

Explanation:

the pots for cooking fell

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Gold has a density of 19.3 g/cm3. I fyou has a 2.00 cm3 block of gold, what would be its mass?
dalvyx [7]
Density equals mass × volume

d=m/V

then m=d×V=19.3×2=38.6g

m=38.6g

hope this helps you
4 0
3 years ago
If you have to stop on an incline, your stopping distance will be __________ on a flat surface.
Nataliya [291]
Not as far on a flat surface
5 0
3 years ago
A body is projected vertically upwards with a speed 100 m/s from the ground then distance it covers in its last second of its up
Valentin [98]

The distance travelled by the body on last second of its upwards journey is 4.935m

What is projectile motion?

A projectile is an object or particle that is launched toward the surface of the Earth and moves along a curved path only under the influence of gravity.

To solve this question, consider the horizontal distance to be H and

distance traveled by the body in the last second be d

H=U^{2} /2g

H=100^{2} /2*9.8

H=510.2m

Now time taken to reach a height of

510.2 m= \sqrt[n]{2H/g}

=10.2 seconds

Now,

s=ut+1/2gt^{2}

H-d= (100)(t-1)-1/2g(t-1)^{2}

510.2-d=100*9.2-1/2*9.8*9.2^{2}

d=4936m

So, the correct answer is '4.936m'.

To know more about projectile motion visit:

brainly.com/question/11049671

#SPJ4

8 0
2 years ago
How much potential energy foes a 5kg mass have when its 2 meters above the ground?(Hint :PE=m*g*h)​
frez [133]

Answer:

<h2>98 J</h2>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

PE = 5 × 9.8 × 2

We have the final answer as

<h3>98 J</h3>

Hope this helps you

5 0
3 years ago
I'm Always in front of you. but you never see me. what am i?​
raketka [301]

Answer:

air is the answer to the question

8 0
4 years ago
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