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2 years ago

Extinction of a species is most likely to occur as a result of __________.

2 answers:

8 0

Extinction of a species is most likely to occur as a result of "environmental changes"

In short, Your Answer would be Option D

Hope this helps!

Amiraneli [1.4K]2 years ago

6 0

Answer: the correct and true answer is "death of organisms".

Explanation:

Which effect is most likely to occur as a result of clear-cutting?

extinction of species

death of organisms

speciation

global warming

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What is the maximum distance that a 60.-watt motor may vertically lift a 90.-newton?weight in 7.5 seconds?a. 2.3mb. 5.0mc. 140md

Naddik [55]

Answer:

b. 5.0 m

Explanation:

Power: Power can be defined as the rate at which work is done.

The S.I unit of power is watt (W).

P = W/t ............................................... Equation 1

Where p = power, W = work, t = time.

But

W = F×d..................................... Equation 2

Where F = force, d = maximum distance.

Substituting equation 2 into equation 1

P = F×d/t

making d the subject of the equation above,

d = Pt/F......................................................... Equation 3

Given: F = 90 Newton, P = 60 watt, t = 7.5 seconds.

Substituting these values into equation 3,

d = 60×7.5/90

d = 5 m

Thus the maximum distance is = 5 m

The right option is b. 5.0 m

5 0

2 years ago

A force of 75 N is applied to a spring, causing it to stretch 0.3 m. What is the spring constant of the spring?

muminat

The answer is D. 250 N/m

3 0

2 years ago

Carbon cycle diagram

sammy [17]

Carbon cycle shows is the continous movement of carbon in elemental and combined states on earth.

Steps :-

☆ Carbon moves from the atmosphere to plants. ...

☆ Carbon moves from plants to animals. ...

☆ Carbon moves from plants and animals to soils. ...

☆ Carbon moves from living things to the atmosphere. ...

☆ Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...

☆ Carbon moves from the atmosphere to the oceans.

~ Benhemin360

6 0

2 years ago

12. A boy of mass 50 kg running 5m/s jumps on to a 20kg trolley

atroni [7]

Answer:

4 m/s

Explanation:

Momentum is conserved.

m₁ v₁ + m₂ v₂ = (m₁ + m₂) v

(50)(5) + (20)(1.5) = (50 + 20) v

v = 4

The final velocity is 4 m/s.

7 0

2 years ago

A basketball referee tosses the ball straight up for the starting tip-off. At what velocity (in m/s) must a basket ball player l

mamaluj [8]

Answer:4.93 m/s

Explanation:

Given

height to reach is (h )1.24 m

here Let initial velocity is u

using equation of motion

$v^2-u^2=2ah$

here Final Velocity v=0

a=acceleration due to gravity

$0-u^2=2\left ( -g\right )h$

$u=\sqrt{2gh}$

$u=\sqrt{2\times 9.81\times 1.24}$

$u=\sqrt{24.328}$

u=4.93 m/s

7 0

3 years ago