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3 years ago

What is the acceleration due to gravity near the surface of earth

2 answers:

4 0

This is simply referring to the fact that the gravitational pull of the earth is greater as you get closer to the surface of the earth, meaning that acceleration increases as well.

beks73 [17]3 years ago

3 0

It's 9.81 meters per second squared // 32.2 feet per second squared. (Both rounded.)

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How long will it take you to travel 20 miles on a bus that drives 60 miles/h?

ValentinkaMS [17]

Answer:

20 Minutes

Explanation:

Well we know Mph (Miles per hour) is distance over time : $\frac{distance}{time} \\$

R (rate) = 60

d (distance) = 20

t (time) = Unknown

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

R = $\frac{d}{t}$

↓

60 = $\frac{20}{t}$

↓

t = $\frac{20}{60}$

↓

t = $\frac{1}{3}$ or 0.3333

So basically it would take one third of an hour. Lets change these units to minutes.

60 * 0.333333 = 20

So it would take you 20 minutes to drive 20 miles on a bus that drives 60 mph

Hope that helps

~Siascon~

8 0

3 years ago

What is the force on a 250 kg elevator that is falling freely at 9.8 m/sec2?

Viefleur [7K]

Answer:

Since it is falling freely, the only force on it is its weight, w.

w = m × g = 250 kg × 9.8 m/s^2 = 2450 Newton/N

6 0

3 years ago

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A radio wave has a speed of 3.00 x10^8 and a frequency of 100 MHz. What is the wavelength?

dlinn [17]

Answer:

Wavelength of radio is wave is 3 m

Explanation:

Wavelength of radio is wave is

$\lambda=\frac{v}{f}$

where

$v=3 \times 10^8 m\s\\f=100 Mhz$

wavelength is

$\lambda=\frac{3\times 10^8}{100\times 10^6} \\\\\lambda=3 m\\$

5 0

3 years ago

What is a fixed volume

nasty-shy [4]

A fixed volume is where either a solid or liquid has a volume that is constant under the same pressure and temperature. A gas cannot have a fixed volume because it changes by itself without any human interaction.

Best of Luck!

5 0

3 years ago

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Please help on this one?

butalik [34]

B. +Q, + W are the correct sign

7 0

3 years ago

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