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IgorC [24]
2 years ago
14

runnin reggie ran up a mountain from an elevation of 915 m to 4095 m in 62.25 min. If Reggie has a mass of 70 kg, how much power

did Reggie generate during his run?
Physics
1 answer:
Stella [2.4K]2 years ago
3 0

Answer:

....................

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fredd [130]

Answer:

the distance covered by the body in 5th second =u+a(n- 1/2)=7+4(5- 1/2)

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=7+18

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What is the scientific name given to potato​
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At a given instant an object has an angular velocity. It also has an angular acceleration due to torques that are present. There
katen-ka-za [31]

a) Constant

b) Constant

Explanation:

a)

We can answer this question by using the equivalent of Newton's second law of motion of rotational motion, which can be written as:

\tau_{net} = I \alpha (1)

where

\tau_{net} is the net torque acting on the object in rotation

I is the moment of inertia of the object

\alpha is the angular acceleration

The angular acceleration is the rate of change of the angular velocity, so it can be written as

\alpha = \frac{\Delta \omega}{\Delta t}

where

\Delta \omega is the change in angular velocity

\Delta t is the time interval

So we can rewrite eq.(1) as

\tau_{net}=I\frac{\Delta \omega}{\Delta t}

In this problem, we are told that at a given instant, the object has an angular acceleration due to the presence of torques, so there is a non-zero change in angular velocity.

Then, additional torques are applied, so that the net torque suddenly equal to zero, so:

\tau_{net}=0

From the previous equation, this implies that

\Delta \omega =0

Which means that the angular velocity at that instant does not change anymore.

b)

In this second case instead, all the torques are suddenly removed.

This also means that the net torque becomes zero as well:

\tau_{net}=0

Therefore, this means that

\Delta \omega =0

So also in this case, there is no change in angular velocity: this means that the angular velocity of the object will remain constant.

So cases (a) and (b) are basically the same situation, as the net torque is zero in both cases, so the object acts in the same way.

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3 years ago
one of the four wave interactions is very important to how plants use light to grow. guess which interaction this is
KiRa [710]
The photosynthetic wave interaction between visible light and a photosensitive part of a plant is very important t how plants use light to grow. 
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Maybe the above ???
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During which moon phase do spring tides occur?
Murrr4er [49]

Answer:

The Full Moon and New Moon

Explanation:

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