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mixer [17]
3 years ago
8

HELP!! Worth a lot of points :) (Physics question)

Physics
2 answers:
Temka [501]3 years ago
8 0
My answer would be B.
Source:
i had this question before.
Hope that this helps you! =)
nadezda [96]3 years ago
6 0
It's B if that helps at all :) (I'm like, 98% sure that it's totally B!
You might be interested in
Can anyone help me with this
alukav5142 [94]
There are four laws of thermodynamics.

Zeroeth Law of Thermodynamics: Two systems in thermal equilibrium with a third system are in thermal equilibrium to each other.

First Law of Thermodynamics: The change in a system's internal energy is equal to the difference between heat added to the system from its surroundings and work done by the system on its surroundings.

Second Law of Thermodynamics: It is impossible for a process to have as its sole result the transfer of heat from a cooler body to a hotter one.

Third Law of Thermodynamics: The entropy of a perfect crystal at absolute zero is exactly equal to zero.



3 0
3 years ago
At what constant rate of acceleration will a car starting from rest cover 18m in the first 3 seconds?
irga5000 [103]
69 hehehehe hehehehe here
7 0
2 years ago
Describe metallurgy. Check all that apply.
mylen [45]

Answer:

A, C, D

Explanation:

got it right

7 0
3 years ago
A car is traveling at a speed of 54 km/h. Breaks are applied so as to produce a uniform acceleration of -0.5 m/s2. Find how far
Lena [83]

Explanation:

u=54 km/h

54*5/18=15 m/s

v=0m/s

t=?

acceleration=-0.5m/s^2

we know that a=v-u/t

so,

t=v-u/a

t=15-0/0.5

=15/0.5

=30

therefore, the time is 30 second

Hope this answer helps you..

8 0
3 years ago
Which of the following is an effect of the electric force?
stich3 [128]

As we know that two charges exert force on each other when they are placed near to each other

The force between two charges is given as

F = \frac{kq_1q_2}{r^2}

here we know that

q_1, q_2 = two different point charges

r = distance between two point charges

also we know that two similar charges always repel each other while two opposite charges always attract each other

so here correct answer would be

<em>A. A positive and negative charge attract each other.</em>

6 0
2 years ago
Read 2 more answers
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