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dem82 [27]
3 years ago
7

1. A chemical equation describes a

Physics
1 answer:
Leto [7]3 years ago
8 0

Answer:

a chemical reaction in the form of symbols

Explanation:

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A car starts from rest and accelerates uniformly for a five seconds along a straight road. If speed obtained by the car is 72 km
Step2247 [10]

Answer:

50 meters

Explanation:

Let's start by converting to m/s. There are 3600 seconds in an hour and 1000 meters in a kilometer, meaning that 72km/h is 20m/s.

v_f=v_o+at

Since the car starts at rest, you can write the following equation:

20=0+a(5) \\\\a=20\div 5=4 m/s^2

Now that you have the acceleration, you can do this:

d=v_o+\dfrac{1}{2}at^2

Once again, there is no initial velocity:

d=\dfrac{1}{2}(4)(5)^2=2 \cdot 25=50m

Hope this helps!

8 0
3 years ago
What is the sl unit for length
NeX [460]

The SI unit of length or distance is the meter.

6 0
3 years ago
A 1200 kg car accelerates from 13m/s to 17m/s. find the change in momentum of the car?
lisabon 2012 [21]

Answer:

4800

Explanation:

The change in velocity of the car is 17-13=4m/s. Since the change in momentum is the mass multiplied by the change in velocity, the answer is 4*1200=4800. Hope this helps!

6 0
3 years ago
Kbhgyugybhhv vihiklmb
Ahat [919]

Answer:

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Explanation:

Can u explain your question?

4 0
2 years ago
A push of magnitude P acts on a box of weight W as shown in the figure. The push is directed at an angle θ below the horizontal,
Kipish [7]

Answer:

its on wheels and they are supposed to make it eas

Explanation:

3 0
2 years ago
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