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dimaraw [331]
2 years ago
15

Write the function of force​

Physics
1 answer:
Inga [223]2 years ago
3 0

Answer:

Force can make a body that is at rest to move. It can stop a moving body or slow it down. It can accelerate the speed of a moving body. It can also change the direction of a moving body along with its shape and size.

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On a graph of position vs. time, a negative slope means what about motion of the object?​
Aleksandr-060686 [28]

Answer:

Explanation:

A positive v time graph is a velocity graph. If the position/time is negative, then the slope of the line is negative. If the line is indicative of the velocity, which it is, that means that the velocity is negative (decreasing). The first choice is the one you want.

6 0
3 years ago
Why-does-the-energy-of-a-sound-wave-decrease-over-time
KengaRu [80]
The sound wave never actually loses energy, the bulk of energy it had at the beginning of the sound, is spread out into a sphere, making it decrease in amplitude and frequency. 
7 0
3 years ago
A sled of mass 28 kg slides across the ground with a friction force of 200.3 N. What is k between the sled and the ground?
Shkiper50 [21]
K=Frictional Force/Normal Force
Normal force would be mg, since it's not on an incline.
Normal Force = 28 kg*9.8 m/s^2 = 274.4 N

200.3 N/274.4 N = 0.73 
3 0
3 years ago
1- A car engine's cooling system con-
postnew [5]

The temperature change in water is 9.95°. The temperature change in methanol is 20.65°. Water removes the thermal energy from the engine better.

<h3>What is a cooling system?</h3>

A cooling system is a system that is design to reduce the temperature of a car engine as the car in in operation.

For water;

H = mcθ

H = heat added

m = mass of water

c = heat capacity of water

θ = temperature rise

θ = H/mc

θ = 836.0 ×  10^3 J/20 Kg × 4200

θ =  9.95°

For methanol;

mass = density × volume = 0.80 g/cm3 × 20000cm^3 = 16Kg

Hence;

θ =  836.0 ×  10^3 J/16Kg × 2530J

θ = 20.65°

The thermal energy that is removed is higher with water.

Learn more about specific heat capacity:brainly.com/question/2530523

4 0
2 years ago
Convert the following as instructed
Westkost [7]

Answer:

1kg = 1000g

67kg therefore would be equal to

67 x 1000 = 67,000g = 6.7 x 10⁴g.

8 0
3 years ago
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