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katrin [286]
3 years ago
8

What is a physical combination of two or more substances that are blended together without forming a new substance?

Physics
1 answer:
Romashka [77]3 years ago
8 0

Answer:

It is called a mixture.

Explanation:

A mixture is a physical combination of 2 or more substances that are blended together without forming a new substance.

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snow_tiger [21]

Weight is the force applied on the planet by its mass. The weight of an object is 6 times lighter than that of the earth. Option C is correct.

What is Wight?

  • It is the product of the mass and the gravitational acceleration.
  • Weight is the force applied on the planet by its mass.

The formula of weight is,

w = mg

Where,

w- weight

m - mass

g- gravitational acceleration

In the question given here the gravitational acceleration of the moon is 6 times less than that of the earth.

Therefore, the weight of an object is 6 times lighter than that of the earth.

Learn more about gravitational acceleration:

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B. the hockey player is moving at a speed of 9. 5 m/s. if it takes him 2 seconds to come to a stop under constant acceleration,
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The hockey player is moving at a speed of 9. 5 m/s. if it takes him 2 seconds to come to a stop under constant acceleration, will be s = 9.5 m.

The branch of physics that defines motion with respect to space and time, ignoring the cause of that motion, is known as kinematics. Kinematics equations are a set of equations that can derive an unknown aspect of a body’s motion if the other aspects are provided.

These equations link five kinematic variables:

Displacement (denoted by Δx)

Initial Velocity v0

Final Velocity denoted by v

Time interval (denoted by t)

Constant acceleration (denoted by a)

These equations define motion at either constant velocity or at constant acceleration. Because kinematics equations are only applicable at a constant acceleration or a constant speed, we cannot use them if either of the two is changing.

v = u + at

0 = 9.5 + a (2)

a = - 9.5 /2  m/s^{2}

v^{2} = u^{2} + 2as

0 =  (9.5)^{2} + 2* (- 9.5 /2) * s

-  (9.5)^{2}  = - 9.5 s

s = 9.5 m

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Answer:

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Which is an example of a scientist using a mathematical model to describe the weather?
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Answer:

The scientist finds an equation that predicts how long the rainstrom will last.

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I just answered it :)

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