3 years ago

What statements describe acceleration check all that apply?

Physics

1 answer:

guapka [62]3 years ago

6 0

Negative acceleration occurs when an object slows down up to stopping at same direction

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Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when placed in a graduated cylinder

Crazy boy [7]

Answer:

"12.4 g/mL" would be the right solution.

Explanation:

The given values are:

Mass of the object,

= 149.8 g

Volume of the object,

= 12.1 mL

Now,

The Density will be:

⇒ $Density=\frac{Mass}{Volume}$

On substituting the given values in the above formula, we get

⇒ $=\frac{149.8}{12.1}$

⇒ $=12.4 \ g/mL$

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3 years ago

Lead-202 has a half-life of 53,000 years. How long will it take for 15/16 of a sample of lead-202 to decay?

ohaa [14]

Answer:

C. 212,000 years

Explanation:

believe me it's correct.....and you're welcome :)

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3 years ago

I want to make a Twinkie splat when I throw it off a building. Because Twinkies are notoriously hard to crush, I want it to hit

Monica [59]

Answer:

$s=253.6524712 \approx 253.7$

Explanation:

From the question we are told that

Initial speed $v=8ft/s$

Final speed $v=128ft/s$

Generally the Newtons equation of motion is mathematically represented by

$V_f^2-V_0^2=2as$

with

Therefore

$a=g=>9.81m/s^2\\a=32.17ft/s^2$

Therefore

$128^2-8^2=2*(32.17)*s$

$16320=2*(32.17)*s$

$s=\frac{16320}{2*(32.17)}$

$s=253.6524712 \approx 253.7$

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3 years ago

A charge is moving in a magnetic field that points to the

padilas [110]

Up, left, into the screen

3 0

4 years ago

What does acceleration always refers as

timama [110]

Answer:

Acceleration always refers to a(n) Change in velocity. A change in direction without a change in speed is called velocity.

Explanation:

6 0

4 years ago

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