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kodGreya [7K]
3 years ago
7

The velocity of a car changes from 60. meters per second north to 45 meters per second north in 5.0 seconds. the magnitude of th

e car's acceleration is
Physics
1 answer:
muminat3 years ago
6 0
The answer to the problem is 3.0 m/s2.
You might be interested in
Question 1
frez [133]
B 20 m/s
It should go to 100 that fast nor 40
4 0
3 years ago
Question 18 of 25
frozen [14]
The answer would be A transverse
5 0
3 years ago
Which of the following is an example of a force? Question 13 options: a) push b) pull c) inertia d) both A and B e) all of the a
kupik [55]
Hey there! :D

Force is energy or strength that as the characteristic of movement or physical action. 

A push or pull is a force. It moves something physically. If I was going to push a door for it to open, I would physically be moving it. 

Inertia is a common tendency to remain unchanged or do nothing. If you are not doing anything, you are not applying force or movement to anything. This would not be the correct answer. We can eliminate "C" and "E"

Since a push and pull both are a force, then "D" is the answer. They both are.

I hope this helps!
~kaikers 


4 0
3 years ago
How much energy (in joules) is required to evaporate 0.0005 kg of liquid ammonia to vapor at the same temperature?
Lana71 [14]

Answer:

685.6 J

Explanation:

The latent heat of vaporization of ammonia is

L = 1371.2 kJ/kg

mass of ammonia, m = 0.0005 Kg

Heat = mass x latent heat of vaporization

H = 0.0005 x 1371.2

H = 0.686 kJ

H = 685.6 J

Thus, the amount of heat required to vaporize the ammonia is 685.6 J.

6 0
3 years ago
A common way to measure the distance to lightning is to start counting, one count per second, as soon as you see the flash. Stop
AURORKA [14]

Answer:

d = 1.07 mile

Explanation:

The rationale for this method is that the speed of light is much greater than the speed of sound, the definition of speed in uniform motion is  

v = d / t  

d = v t  

the speed of sound is worth  

v = 343 m / s  

Therefore, the speed of sound must be multiplied by time to do this, all the units must be in the same system, as the distance in miles is requested  

v = 343 m/s (1mile/1609 m) (3600s/1 h) = 343 (2.24) = 767.4 mile/h  

v = 343 m / s (1 mile / 1609 m) = 0.213, mile/ s  

If the measured time is t = 5s we multiply it by the speed  

we substitute  

d = 0.213 5

d = 1.07 mile

If you want to calculate the speed, this method in general is not widely used, since you must know the distance where the lightning occurred, which is relatively complicated.

8 0
3 years ago
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