3 years ago

Renewable resources need to be conserved because

Physics

1 answer:

creativ13 [48]3 years ago

4 0

Answer:

(A) We are using them faster than they are replenished by nature

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An elephant pushes with 2000 N on a load of trees. It then pushes these trees for 150 m. How much work did the elephant d

LiRa [457]

Answer:

300000

Explanation:

2000×150= 300000

6 0

2 years ago

The container was lifted a height of 14 m

Alika [10]

Work done = Force X Distance

3 430 000J = Force X 14m

Force = 3 430 000J / 14m
= 245 000 N

Hope this helps!

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2 years ago

When a moving car is brought to a stop with the brakes, its acceleration vector is 29. (a) in the same direction as its velocity

professor190 [17]

To develop this problem we will apply the concepts related to the kinematic equations of motion, specifically that of acceleration. Acceleration can be defined as the change of speed in an instant of time, mathematically this is

$\vec{a} = \frac{\vec{v_2}-\vec{v_1}}{\Delta t}$

If a mobile is decreasing its speed (it is slowing down), then its acceleration is in the opposite direction to the movement. This would imply that the acceleration vector is opposite to the velocity vector.

Therefore the correct answer is B.

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3 years ago

An object that is 3 times higher than another object of the same mass will

uranmaximum [27]

Answer: I feel that 3 is the answer

Explanation: Let there be 2 objects, A and B

A is at height of 5m whereas B is at height of 15m

so over here let the gravitational potential energy of A be x

and since B is 3 times higher than A B=3x

Since, earth is considered to be the point where gravitational potenial is 0

So hence forth and object 3 times up will have 3 times the gravitational potential energy of A

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3 years ago

Select whether the argument is an example of a deductive or an inductive argument:

viva [34]

The answer is a inductive

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3 years ago