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balandron [24]
3 years ago
10

A thousand years ago, the same amount of ___________ was on earth as today.

Biology
2 answers:
tino4ka555 [31]3 years ago
5 0
The answer to the question is mass




Ksenya-84 [330]3 years ago
3 0
The answer above, mass, is correct.
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The cycle of changes which occurs in female reproductive system for a month is called​
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ovulation

Explanation: ovulation is the release of eggs(ova) from the ovaries is the  cycle of change which occurs in female reproductive system for a month.

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2 years ago
terry physics pushes a 75kg lab cart so that is accelerates from rest with a velocity of 4.4m/s in 3.1 secounds. what is the for
svetlana [45]

106.5N

Explanation:

Given parameters:

Mass of cart = 75kg

Velocity = 4.4m/s

time taken = 3.1s

Unknown:

Force = ?

Solution:

To solve this problem, we are going to apply newton's second law of motion. The law states that "the acceleration of a body is directly proportional to the force on the body and inversely proportional to the mass".

      F = m  x   a

F = force on body

m = mass of body

a = acceleration of the body

 But we know that acceleration is the change in velocity with time of a body;

     a  = \frac{change in velocity }{time}

  F = m x \frac{V}{t}

V is the velocity

t is the time taken

   F = \frac{75  x  4.4}{3.1}   = 106.5N

learn more:

Newton's law brainly.com/question/11411375

#learnwithBrainly

6 0
2 years ago
One end of the rope is vibrated to produce a wave with a wavelength of 0.25 m. The
evablogger [386]

Answer:

3) 0.75m/s

Explanation:

The wavelength of a wave is calculated using the formula;

λ = v/f

Where!

λ = wavelength of wave (m)

v = velocity or speed (m/s)

f = frequency of wave (Hz)

According to this question, one end of a rope is vibrated to produce a wave with a wavelength (λ) of 0.25 m and frequency (f) of 3.0 Hz.

Using λ = v/f

v = λ × f

v = 0.25 × 3

v = 0.75m/s.

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Here one of the answer Red Cedar Tree
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What is the best definition for the term 'peer review?'
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A. When you are given of review of how well you by your co workers
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3 years ago
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