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2 years ago

This chemical equation represents a ______________ reaction.

Physics

2 answers:

Ede4ka [16]2 years ago

7 0

Answer:

you didnt put anything

Explanation:

BARSIC [14]2 years ago

3 0

Yess yess it’s correct !!!!

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3 years ago

What is the correct reason for blinking / flickering of stars? Explain it.

Rzqust [24]

Answer:

d. changing refractive index of gases in the atmosphere

Explanation:

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i hope this helps! :D

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2 years ago

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3 years ago

Read 2 more answers

A spring-loaded toy gun is used to shoot a ball of mass 1.5 kg straight up in the air, as shown. The spring has spring constant

asambeis [7]

Answer:

Part a)

U = 15.5 J

Part b)

h = 1.05 m

Part c)

v = 4.55 m/s

Explanation:

Part a)

Initial potential energy stored in the spring is given by

$U = \frac{1}{2}kx^2$

now we have

$k = 777 N/m$

x = 20.0 cm

now from above formula we will have

$U = \frac{1}{2}(777)(0.20)^2$

$U = 15.5 J$

Part b)

By mechanical energy conservation law we can say that initial spring potential energy stored = final gravitational potential energy at the top position

$\frac{1}{2}kx^2 = mgh$