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Serhud [2]
4 years ago
13

What is heat?

Physics
1 answer:
OLEGan [10]4 years ago
7 0
Well you need to have lots of heat
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When you eat a candy bar, your body oxidizes glucose to get energy. where does this energy come from? kinetic energy of the gluc
babymother [125]
The correct answer is
<span>"chemical bonds within the glucose molecules "

The chemical bonds of the glucose molecules contain chemical energy, and when these bonds are broken by the processes acting inside the body, the energy of the bonds is released and it can be used by the body.


</span>
8 0
3 years ago
two horses are pulling a 325 kg wagon, initially at rest. The horses exert 250 N and 178 N forward forces, respectively. Ignorin
Dovator [93]

Answer:

AFter 3.5 s, the wagon is moving at:   4.62\,\,\frac{m}{s}

Explanation:

Let's start by finding first the net force on the wagon, and from there the wagon's acceleration (using Newton's 2nd Law):

Net force = 250 N + 178 N = 428 N

Therefore, the acceleration from Newton's 2nd Law is:

F=m\,*\,a\\a = \frac{F}{m} \\a= \frac{428}{325}\, \frac{m}{s^2} \\a\approx 1.32 \,\,\frac{m}{s^2}

So now we apply this acceleration to the kinematic expression for velocity in an object moving under constant acceleration:

v_f=v_i+a\,*\,t\\v_f=0+1.32\,*\,3.5\,\,\frac{m}{s} \\v_f=4.62\,\,\frac{m}{s}

7 0
3 years ago
True or False. A loud noise gives off less energy than a quiet noise.​
zvonat [6]

Answer:

true

Explanation:

hope it helped you

5 0
3 years ago
Read 2 more answers
What is the standard used by scientist for mass
Licemer1 [7]
The standard measurement system used by the scientists is called: International System Of Units, or SI. The units of measurement of a few physical quantities are considered to be base units. (Also do you need the base units too cuz I can help you with that) :)
6 0
3 years ago
Read 2 more answers
Who created the light bulb?
Daniel [21]
There were 2 people
Tomas Edison
Joseph Swan

Tomas Edison invented the first practical incandescent lightbulb.

Sir Joseph Swan is most famous for his role in the development of the first incandescent lightbulb.


5 0
4 years ago
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