4 years ago

Which type of rock contains minerals arranged in crystals and forms when molten rock cools and turns solid?

Physics

1 answer:

Katena32 [7]4 years ago

7 0

The answer to ur question is: C

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At a given time of day, the ratio of the height of an object to the length of its shadow is the same for all objects. If a 4-f

katrin2010 [14]

Answer:35.2 ft

Explanation:

Given

height of stick =4 ft

shadow length =2.8 ft

Angle of elevation of sun is

$tan\theta =\frac{4}{2.8}$

let the height of tree be h

as $\theta$ will remain same thus

$tan\theta =\frac{h}{24.64}$

$\frac{4}{2.8}=\frac{h}{24.64}$

h=35.2 ft

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4 years ago

If the voltage in a circuit is 24 V and the current is 2 A, what is the total power in the circuit?

Drupady [299]

Maybe you can divide the volts its twelve if you do that but itll show you how much to double it by

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4 years ago

Read 2 more answers

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andriy [413]

Explanation:

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3 years ago

A sled whose total mass with cargo is 30.0 kg rests on ice. The coefficient of static friction is 0.20 and the coefficient of ki

romanna [79]

when sled just start to move the force on the sled will be equal to the static friction

So here we need to find the value of static friction

We know that

m = 30 kg

$\mu_s = 0.20$

now we know that normal force on the block is counterbalanced by weight of the block

$F_n = mg$

$F_n = 30*9.8$

now in order to find the friction force we can use

$F_s = \mu_s * F_n$

$F_s = 0.20 * 30 * 9.8$

$F_s = 59 N$

so it requires 59 N of force to move the sled

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3 years ago

Which planet has a rotational period closest to that of Earth?

frosja888 [35]

The answer is Mars
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4 years ago