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Veronika [31]
2 years ago
6

What are action-reaction force pairs?

Physics
2 answers:
aliina [53]2 years ago
8 0
Exerted by two objects on each other are often called an action- reaction force pair. Either force can be considered the action force or the reaction force.
Cloud [144]2 years ago
7 0
Two objects on each other
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1200kg car speeds up from 2 m/s to 6 m/s. How many times greater is the car's kinetic
Bezzdna [24]

Answer:

9 times as great

Explanation:

KE = 1/2mv²

  1. 1/2(1200)(2)² = 2,400 J
  2. 1/2(1200)(6)² = 21,600 J

21,600 / 2,400 = 9

3 0
2 years ago
a liquid with a specific heat of 1900J/Kg° C has 4750 joules of heat energy is added to it. if the temperature increases from 20
GREYUIT [131]
E=mcθ
where E is the energy added,m is the mass,c is the specfic heat capacity and θ is the change in temprature.
making m subject u get E/c<span>θ=m
</span><span>θ=(30-20)=10</span><span>
plugging the values  we get :
</span>\frac{4750}{1900*10}
<span>
solving it we get the answer that is 0.25kg or 250 grams

</span>
8 0
2 years ago
what is the total distance traveled by a bike rider who rides for three hours at 40 km/hr and then two more hours at 50 km/hr?
marta [7]

Answer:

220 km

Explanation:

3 hours at 40 km/hr

40 km = 1 hour

40 km times 3 = 120 km

2 hours at 50 km/hr

50 km = 1 hour

50 times 2 = 100 km

Total distance

120 km + 100 km = 220 km

4 0
3 years ago
4.6 billion years ago, the Earth is created from what
Musya8 [376]

Answer:

4.6 billion years ago the earth was made of gas and dust that was orbiting the newly forming Sun.

Explanation:

7 0
2 years ago
PLEASE I NEED SOME HELP!
vagabundo [1.1K]
Ill answer the question hold on just a sec

3 0
3 years ago
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