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3 years ago

True or False? In the quark era, it was so hot that matter and

Physics

1 answer:

Eva8 [605]3 years ago

8 0

Answer:

False

Explanation:

Great educated guess energy and matter is different

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What impulse occurs when a cart that is originally at rest experiences an average force of

frez [133]

Explanation:

What impulse occurs when a cart that is originally at rest experiences an average force of

N for 2.5 s? *

(10 Points)

25 N

25 Nm

25 Ns

25 kg m/s

5 0

3 years ago

Which of the following best describes the association

exis [7]

Strong positive,

as high temperature increases, precipitation increases, so it’s positive.

And since the points are very close together, there is a strong correlation between the two variables, so it is strong.

Don’t forget to mark brainliest please

3 0

2 years ago

Objects in motion tend to stay in motion in a straight line at a constant velocity unless acted on by a(n) force

Gre4nikov [31]

Answer:

Newton's first law of motion

Explanation:

Newton's first law of motion states that an object will continue to remain at rest or move with uniform motion unless it is acted upon by an external force.

This law is known as the law of inertial.

Unless a net force greater than zero acts on a body, it will continue to remain at rest or move uniformly.

This is very correct and has a wide range of application for many mechanics studies. In that we know that an object can only change motion or accelerate by adding external force to act on it.

6 0

3 years ago

The lift accelerates upwards at 2.5m/s?.

ipn [44]

The magnitude of force exerted on the woman by the floor when the lift is accelerating is 150 Newton.

<u>Given the following data:</u>

Mass of woman = 60 kg.

Acceleration = 2.5 $m/s^2$

To calculate the force exerted on the woman by the floor when the lift is accelerating, we would apply Newton's Second Law of Motion:

<h3>Newton's Second Law of Motion.</h3>

Mathematically, Newton's Second Law of Motion is given by this formula;

$Force = mass \times acceleration$

Substituting the given parameters into the formula, we have;

$Force = 60 \times 2.5$

Force = 150 Newton.

Read more on force here: brainly.com/question/1121817

8 0

3 years ago

The velocity of the transverse waves produced by an earthquake is 4.05 km/s, while that of the longitudinal waves is 7.695 km/s.

lora16 [44]

Answer:

x = 600 Km

Explanation:

given,

speed of transverse wave = 4.05 Km/s

speed of longitudinal wave = 7.695 Km/s

difference of the time of arrival of wave = 69.9 s

now,

t₂ - t₁ = 69.9 s

let x be the distance

$\dfrac{x}{4.05} - \dfrac{x}{7.695} = 69.9$

$x = \dfrac{69.9\times 4.05 \times 7.695}{7.695-4.05}$

x = 597.645 Km

x = 600 Km

distance of recorder from the site is 600 Km approximately.

4 0

3 years ago