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podryga [215]
3 years ago
11

Record your model values in the table below

Physics
1 answer:
AlladinOne [14]3 years ago
8 0
There not enough inform here to answer this question
You might be interested in
In this section of a circuit, a current of 2.6 A flows across R1. What is the potential difference V between point x and point y
Ymorist [56]

Answer:

V=21V

Explanation:

In series combination current is same

I=2.6A

R2=8ohm

V2=2.6×8

V2=20.8

V2=21V

5 0
3 years ago
If you lift two loads up one story, how much work do you do compared to lifting just one load up one story?
Daniel [21]

Answer:a

Explanation:

We have to lift the load two loads up one story, so energy required is

let m be the mass of each load and h is the height of each story

Energy E_1=2\times m\times g\times \h

E_1=2mgh

Here energy gained is the potential energy which depends upon the datum(floor).

For lifting one load up one story

Energy required

E_2=mgh

thus E_2 is half of E_1

So option a is correct                                

6 0
3 years ago
calculate the momentum of 5.07 kg egg that is dropped from a roof and falls 2 seconds before hitting the ground.
inysia [295]
Anything that's dropped on or near the Earth accelerates at the rate of
9.8 m/s² on its way down.  The mass of the object makes no difference. 
After falling for 2 seconds, it's falling at the rate of 19.6 m/s.

Momentum = (mass) x (speed)

The egg's momentum is   (5.07 kg) x (19.6 m/s) = 99.4 kg-m/s .
8 0
3 years ago
A sound wave travels in a straight line at a constant speed of 660 mph. What is
Fed [463]

Answer:

a = 0

Explanation:

The velocity of a sound wave in a straight line is 660 mph. The wave is moving with a constant velocity. It means that the change in velocity is equal to 0.

We know that acceleration of an object is equal to the change in velocity divided by time taken. But here the change in velocity is 0. As a result the acceleration of the sound wave is 0.

8 0
3 years ago
Which explains why more energy is released in nuclear reactions than in chemical reactions? Chemical reactions are always endoth
Natali [406]
More energy is released in nuclear reactions than in chemical reactions; this is because in nuclear reactions, mass is converted to energy. Nuclear energy released in nuclear fission and fusion is several 100 million times as large as an ordinary chemical reaction like the combustion process. The reason why nuclear energy release so much energy is because tremendous amounts of energy is released at one time. The nuclei in a nuclear reaction undergo a chain reaction, causing the neutrons to move extremely fast and release high amounts of energy. 
3 0
3 years ago
Read 2 more answers
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