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inna [77]
3 years ago
8

What makes a submarine dive?

Physics
1 answer:
sineoko [7]3 years ago
8 0

Letting water into its tanks, and letting it push air out, increases the density of the submarine.  Once its density becomes greater than 1 (the density of the water it's floating in), it starts to sink.  

The more water is let into the tanks, the greater the sub's density becomes, and the faster it sinks ... (it becomes more like a rock).

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If the work done to stretch an ideal spring by 4.0 cm is 6.0 j, what is the spring constant (force constant) of this spring?
Alisiya [41]

Answer:

The spring constant is 3750 N/m  

Explanation:

Use the following two relationships:

(Work) = (Force) x (Displacement)

(Force) = (Spring constant) x (Displacement)

=>

(Spring constant) = (Force) / (Displacement) = (Work) / (Displacement)^2

(Spring constant) = 6.0 kg.(m^2/s^2) / 0.0016 m^2 = 3750 N/m

The spring constant is 3750 N/m  

4 0
3 years ago
a microwave uses a 14 a of electricity if 120 v is run through it what is the resistance of the microwave
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Resistance = voltage / current.

That's. 120v / 14A = 8.57 ohms.

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What description refers to fog?
wolverine [178]
I think the answer is D
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Doss [256]

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Impulse: F*t where F= Force & t=time

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A ball rolling down a slide gains momentum

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