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Inessa [10]
4 years ago
9

What do you think a black hole is

Physics
2 answers:
Rufina [12.5K]4 years ago
8 0

A black hole is a object with a gravitational pull so strong, you have to reach the speed of light to escape. Since nobody can, when it happens, we are gone.
pychu [463]4 years ago
8 0
A black hole contains a large amount of gravitational force, which pulls everything near it inside. 
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Why are household wall sockets alternating current (AC) instead of direct current (DC)? Select all that apply.
Bond [772]

Answer:

It is easier to scale the voltage of AC from high to low and low to high than with DC

Explanation:

typically power is used far away from the place where it's generated so to ensure that transmission losses( copper losses) are minimized voltage has to be stepped up during transmission..but due to the fact that most house hold equipment requires low voltage levels it has to be stepped down once it reaches a household/ domestic load...it's easier to do this for Ac than for DC.

8 0
3 years ago
Ted is a high school student. He is very good at math, but he is not a very good English student. He likes all of his teachers;
scoray [572]
I think the correct answer is

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AnonymousGiantsFan
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4 years ago
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What affect does a tripling of the net force have upon the acceleration of the object ? Be quantitative
vovikov84 [41]
The formula of net Force is:
F = ma
where m is the mass of the object
a is the acceleration of the object

so if we triple the net force applied to the object:
3F = ma
a = 3F / m

so the acceleration will also be tripled. because from the equation, the force is directly proportional to the acceleration
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3 years ago
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algol [13]
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4 years ago
Hi, I need some science help ASAP. Here's the question:
ch4aika [34]

Answer:

Mass of the box is 25kg

Explanation:

From Newton's second law of motion

Force= mass. acceleration

With the symbol

F=m.a

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                m=25kg

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3 years ago
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