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alukav5142 [94]
3 years ago
11

Which of these statements is true?

Physics
2 answers:
9966 [12]3 years ago
6 0
C.) Meiosis involves two cycles of cell division

Hope this helps!
Nataly [62]3 years ago
3 0
<span>C. Meiosis involves two cycles of cell division.
 
Because A, mitosis only produces 2 cells. B, mitosis brings identical cell, and D, mitosis is the one who helps your body to heal itself. </span>
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How does the density of the Earth’s core compare to the other layers of the Earth?
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The answer is A) for sure
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3 years ago
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Momentum is a measure of the<br> of an object.<br> Which term accurately completes the sentence?
RideAnS [48]

Answer:

Momentum is define as the product of the mass and velocity of a body. It is measured in Kgm/s.

Explanation:

Momentum is the product of mass and velocity of an object. When an object or a body of mass 'm' is moving with velocity 'v', then its momentum can be determined as;

momentum (P) = mass × velocity

i.e            P = m × v

                  = mv

It is measured in Kgm/s.

The change in momentum of a body is referred to as its impulse (Ft).

ΔP = m(v - u) = Ft

Where: P is the momentum of the object, m is its mass, v is its final velocity, u is the initial velocity, F is the force and t is the time in which the force acts.

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3 years ago
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Water flows through a garden hose which is attached to a nozzle. The water flows through hose with a speed of 1.81 m/s and throu
Serggg [28]

Answer:

a) 17.086m

b) 0.1671 m

Explanation:

Given data: speed of water through the hose  = 1.81 m/s

through the nozzle = 18.3 m/s

We know that maximum height of an object with upward velocity v is given by,

a) H = v^2/2g

where H is the maximum height water emerges  

= 18.3^2/(2×9.8) = 17.086 m answer

b) Again,  

H = v^2/2g

= 1.81^2/(2×9.8) = 0.1671 m

6 0
3 years ago
1. You wish to heat 20 kg of water from 40°C to 80°C. How many kcal of heat are necessary to do this? To how many kJ does this c
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Answer:

<h2>3,343.68kJ </h2>

Explanation:

Heat energy used up can be calculated using the formula:

H = mcΔt

m = mass oof the object (in kg) = 20kg

c = specific heat capacity of water = 4179.6J/kg°C

Δt change in temperature = 80-40 = 40°C

H= 20* 4179.6 * 40

H = 3,343,680Joules

H = 3,343.68kJ

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In a healthy body, the heart pumps blood efficiently. When the heart has a problem, heart failure can occur. Heart failure can h
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Answer:

the heart would fail to efficiently pump oxygenated blood to the body and lungs

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3 years ago
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