The temperature of a balloon is lowered with liquid nitrogen. The balloon appears to deflate because the A. nitrogen has burst the balloon. B. nitrogen is now inside the balloon. C. balloon has lost energy and condensed. D. gas in the balloon lost energy and condensed.

Answers

Answer 1

Answer:

The temperature of a balloon is lowered with liquid nitrogen. The balloon appears to deflate because the gas in the balloon lost energy and condensed. The answer is letter D.

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In stars mor massive than the sun, fusion continues until the core is almost all....

Answers

In stars more massive than the sun, the core temperature is hotter, which allows for fusion of more complex elements.

Most of the fusion occurs in the core.

In stars more massive than the sun, fusion continues through Deuterium, Carbon, and finally reaching iron/nickel.

Up to this point, the fusion reaction was endothermic, which means that the energy expended to produce the fusion reaction was exceeded by the energy produced in the reaction.

Fusion past iron is exothermic, and therefore the star will be able to survive by fusing elements heavier than iron.

After the core is almost entirely iron, the star is no longer in the Main Sequence.

So, fusion in stars more massive than the sun continue fusing until the core is almost entirely iron.

Which type of electromagnetic radiation cannot be focused? A. Gamma rays
B. X-rays
C. Ultraviolet
  D. Infrared

Answers

X-Rays and Gamma Rays

a person pushing a stroller starts from rest, uniformly accelerating at a rate of 0.500m/s^2. what is the velocity of the stroller after it has traveled 4.75m?

Answers

You're going to use the constant acceleration motion equation for velocity and displacement:
(V)final²=(V)initial²+2a(Δx)

Given:
a=0.500m/s²
Δx=4.75m
(V)intial=0m
(V)final= UNKNOWN

(V)final= 2.179m/s

Hello!

A person pushing a stroller start from rest uniformly accelerating at a rate of 0.500 m/s². What is the velocity of the stroller after it traveled 4.75 m ?

We have the following data:

a (acceleration) = 0.500 m/s²

Vf (final velocity) = ? (in m/s)

Vi (initial velocity) = 0 m/s

Δx (displacement) = 4.75 m

Solving:

Let's apply the Torricelli Equation, to find the velocity of the stroller, let's see:

$V_f^2 = V_i^2 + 2*a*\Delta{x}$

$V_f^2 = 0^2 + 2*0.500*4.75$

$V_f^2 = 0 + 4.75$

$V_f^2 = 4.75$

$V_f = √(4.75)$

$\boxed{\boxed{V_f \approx 2.18\:m/s}}\:\:\:\:\:\:\bf\blue{\checkmark}\bf\green{\checkmark}\bf\red{\checkmark}$

Answer:

The velocity of the stroller is approximately 2.18 m/s

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What alternative source of energy do people in your locality use write the purpose of that source

Answers

Answer:

the sun is the main sourse of energy

Explanation:

it can be use to save eco system

there will be no pollution

there will be no harmful gases

What is word meaning "heated to a glow"?

Answers

I think the word you want is "incandescent".

One light-hour is the distance that light travels in an hour. How far is this, in kilometers? (Recall that the speed of light is 300,000 km/s.) _______A) 18 million kmB) 1.08 billion kmC) 300,000 kmD) 9.46 trillion kmE) 100 million km

Answers

Answer:

B 1.08 BILLION

Explanation:

SEE ATTACHMENT

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