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3 years ago

If the Universe was born at the Big Bang, what existed before then?

1 answer:

defon3 years ago

7 0

The small bang lol, sorry if this is an actual question but i’m pretty sure no one knows the answer- at least i don’t! good luck if it’s an actual question on and assignment or quiz, very sorry. xoxo

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When a pitcher throws a curve ball, the ball is given a fairly rapid spin?

Oksi-84 [34.3K]

Yes it would be rapid

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4 years ago

lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

lbvjy [14]

it's mass would double if it's volume doubled

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3 years ago

Why do you think you need to stir the Kool Aid?

PtichkaEL [24]

Answer:

Stirring the Kool aid enables the the kool-aid to dissolve in water by keeping all of the crystals off the bottom and in the water.

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3 years ago

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A 6.00-kg crate is suspended from the end of a short vertical rope of negligible mass. An upward force F(t) is applied to the en

timofeeve [1]

Answer:

The magnitude of F when t=4 s=146.64 N

Explanation:

We are given that

Mass of crate,m=6.00 kg

Height of crate above its initial position is given by

$y(t)=(2.80 m/s)t+(0.610 m/s^3)t^3$

We have to find the magnitude of F when t=4.00 s

Differentiate w.r.t t

$\frac{dy}{dt]=2.8+3(0.61)t^2$

$\frac{d^2y}{dt^2}=6(0.61)t$

$a(t)=\frac{d^2y}{dt^2}=6(0.61)t m/s$

$a(4)=6(0.61)(4)=14.64 m/s^2$

Now, magnitude of force

$F=m(a+g)=6(14.64+9.8)=146.64N$

Hence, the magnitude of F when t=4 s=146.64 N

4 0

3 years ago

What energy transformation occurs when a skydiver first jumps from a plane

d1i1m1o1n [39]

The skydiver jumping from a plane high up in the sky would most likely experience various energy transformation. For starters, it would undergo a very large gravitational potential energy because of its much higher elevation. After jumping, this energy would eventually transform to kinetic energy due to the force exerted by the gravity.

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3 years ago

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