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3 years ago

6

I need to fill the gaps

1 answer:

andriy [413]3 years ago

5 0

Answer:

1. combustion

2. oxygen

3. CO²

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What is the purpose of the thermal energy tranfer lab

iren2701 [21]

Answer:thermal Energy Transfer in Mixtures Purpose: The purpose of this experiment is to discover how exactly the final temperature of a mixture, involving a substance and hot water, is affected and impacted by the type of substance used. This means that when hot water is mixed with another substance, it must be determined

Explanation:

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2 years ago

What waves travel through a medium? Transverse, longitudinal, surface, electromagnetic, and mechanical are the choices

Svetach [21]

Mechanical Waves require a medium to travel through in order to transport their energy from one location to another.
Hoped this helped!

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3 years ago

the kinetic energy of an object with mass m moving with a velocity of 5 m/s is 25 j what will be its kinetic energy when its vel

Dmitriy789 [7]

Answer:

100 J, 225 J

Explanation:

The kinetic energy of an object is given by:

$K=\frac{1}{2}mv^2$

where

m is the mass of the object

v is the velocity of the object

In this problem, the initial kinetic energy of the object is

K = 25 J

Then, the velocity is doubled, which means

v' = 2v

Therefore, the new kinetic energy will be

$K'=\frac{1}{2}m(2v)^2 = 4(\frac{1}{2}mv^2)=4K$

Therefore, the kinetic energy has quadrupled:

$K' = 4(25)=100 J$

Later, the velocity is tripled, which means

v'' = 3v

Therefore, the new kinetic energy will be

$K''=\frac{1}{2}m(3v)^2 = 9(\frac{1}{2}mv^2)=9K$

Therefore, the kinetic energy has increased by a factor of 9:

$K' = 9(25)=225 J$

4 0

3 years ago

You are doing an experiment to determine how many passengers would fit into a full-sized plane. If a scale model plane has space

romanna [79]

The real place should theoretically have space for 87 passengers if it is an exact model and doesn't have modifications in the seat numbers.

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4 years ago

Read 2 more answers

Please need help with this

NeTakaya

<u>Note that</u>:

The gravitational potential energy = $mgh$

where m: is the mass, g: the acceleration due to the gravity and h is the height from the earth surface

Then, we can increase the gravitational potential energy by increasing the mass or the height from the earth surface

<u>In our question</u>, we can increase the gravitational potential energy by

<u>A) Strap a boulder to the car so that it wights more.</u>

7 0

3 years ago