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AURORKA [14]
3 years ago
11

Which is most likely a compound?

Physics
1 answer:
Leya [2.2K]3 years ago
4 0

Answer:

I think you forgot to post the sentences

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Is 250 000 miles from the earth to the moon" is a qualitative<br> Observation<br> TRUE<br> Or false
lys-0071 [83]

Answer:

True

Explanation:

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3 years ago
Know? Like to know? Learned physical science chapter 16
Leya [2.2K]
I have learned the whole thing

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How much will the kinetic energy of a school bus increase if its velocity is tripled?
son4ous [18]

Answer:

Explanation:

Given a school bus.

Let say initially the school bus is traveling with speed "v"

Let assume mass of school bus is "m"

Then, the initial kinetic energy is

K.E_initial = ½mv²

Now, if the initial velocity is tripled,

Then, the new velocity is

v_new = 3v.

Note: the mass of the school does not change it is constant

Then, new kinetic energy is

K.E_new = ½m(v_new)²

v_new = 3v

Then,

K.E_new = ½m(3v)²

K.E_new = ½m × 9v²

K.E_new = 9 × ½mv²

Since K.E = ½mv²

Then,

K.E_new = 9 × K.E

So, the new kinetic energy will be 9 times the initial kinetic energy.

So, option D is correct

D. It will be nine times greater.

4 0
3 years ago
The eagles suck, so do the giants and the jets and jaguars are irrelevant<br><br>anyone wanna argue
kompoz [17]

Naw ur pretty accurate, heck collage is the only football worth watching most the time. Hook'um horns!

8 0
3 years ago
An object is pulled up an incline plane at a constant velocity as the picture above shows. Calculate the tension on the rope.
WARRIOR [948]

Hi there!

\large\boxed{545N}

Since the object is being pulled at a constant velocity, the forces must be balanced.

Since there is no movement vertically, we must take into account the horizontal forces. We can also assume a positive acceleration to be in the direction of motion.

The acceleration and force due to gravity on an incline is:

a = gsinФ

F = MgsinФ

∑F = -MgsinФ + T

Since it is getting pulled at a constant velocity, ∑F = 0. So:

0  = -MgsinФ + T

MgsinФ = T

Solve for T by plugging in values. Let g = 10 m/s²

T = (120)(10)sin(27) ≈ 545 N

6 0
3 years ago
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