3 years ago

Estimate the number of time your heart beats in an average day

1 answer:

4 0

Your heart beats approximately once per second. There are 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, 365.25 days in a year, and approximately 75 years in a lifetime.

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A gas heated to millions of degrees would emit

makkiz [27]

A gas heated to millions of degrees would emit mostly x-rays.

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3 years ago

what is the pressure exerted, what is the pressure exerted by 50kg girl as she places her weight on one shoe if the heels area i

lana [24]

Answer:

The pressure exerted by the girl is 245,000 N/m²

Explanation:

Given;

mass of the girl, m = 50 kg

area of the girl's shoe, A = 0.002 m²

The pressure exerted by the girl is calculated as follows;

$P = \frac{F}{A} \\\\Where;\\F \ is \ the \ force \ exerted \ by \ girl's \ weight\\\\P = \frac{F}{A} = \frac{mg}{A} = \frac{50 \times 9.8}{0.002} = 245,000 \ N/m^2$

Therefore, the pressure exerted by the girl is 245,000 N/m²

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3 years ago

In his famous race, a hare runs for a while, takes a nap, and then resumes running until he reaches the finish line. His total d

notka56 [123]

.6 MPM
T = Time
D = Distances
S = Speed

to get speed you Divide your Distances by Your time
hope I helped! :P

7 0

3 years ago

The majority of the nitrogen on earth can be found in which reservoirs?

xz_007 [3.2K]

Answer:

atmosphere

Explanation:

majority of nitrogen found in atmosphere,it's about 78% and present in form of gas

8 0

3 years ago

What is the power output of a pump which can raise 60 kg of water to a height of 10m every minute

Ede4ka [16]

Work = m•g•h

Power = work / time

Power = m•g•h / time

m= 60 kg

g = 9.8 m/s^2

h = 10 m

time = 1 min = 60 sec

Power = (60kg)(9.8m/s^2)(10m)/60s

Power = 98 watts

AnsweringJew

4 0

3 years ago