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iris [78.8K]
3 years ago
11

How much time does it take 9,560 joules of work with 860 watts of power

Physics
2 answers:
PIT_PIT [208]3 years ago
8 0

Answer:478/43 seconds

Explanation:

Work=9560j

Power=860watts

Time=work/power

Time=9560/860

Time=478/43 seconds

tia_tia [17]3 years ago
5 0

Explanation:

use equation power=watts/time

to find time rearrange to make time = power/wats

so you have your equation substitute the numbers

so 9560J/860W is 11 minutes

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What would a bullet fired from a very long distance, such as 1000 yards from the target do as it travelled along a straight path
ivann1987 [24]

The bullet would start to veer of path, either to the right or left and also downword. This happens because gravity is pushing it down and it no longer has enough thrust force pushing it in a straight direction because drag and air friction are slowing it down. The forces would include gravity, thrust, drag, and air resistence.

3 0
3 years ago
a. Of the three experiments that are used to confirm the Big Bang theory, which is the most interesting to you and why?
HACTEHA [7]

Answer:

Explained

Explanation:

Big Bang happened about 13.7 billion years ago. It is most accepted theory of universe creation. Several experiments have confirmed the happening of big bang back then, in promising way. One of this experiment is the red shift experiment. A scientist named Edwin Hubble tried to study the spectrum of stars. He made a shocking revelation that universe is rushing outwards in all directions. Light travelling away registers on the red side. He observed that the distance stars showed red shift in accelerated manner. If the universe is accelerating that means, at one point it would have been smaller, in fact it was as small as an atom, some how it exploded and lead to formation of the expanding universe.

6 0
3 years ago
An object has a position given by the radius vector r = [2.0 m + (3.00 m/s)t](i)+ [3.0 m - (2.00 m/s^2)t^2](j). Here (i) and (j)
jenyasd209 [6]

Answer:

The speed of the object is (3i - 4.00tj)m/s

The magnitude of the acceleration is 4.00m/s²

Explanation:

Given - position vector;

r = (2.0 + 3.00t)i + (3.0 - 2.00t²)j       -------------------(i)

To get the speed vector (v), take the first derivative of equation (i) with respect to time t as follows;

v = \frac{dr}{dt}

 v = \frac{d[(2.0 + 3.00t)i + (3.0 - 2.00t^2)j]  }{dt}  

v  = 3i - 4.00tj      ------------------------(ii)

To get the acceleration vector (a), take the first derivative of the speed vector in equation(ii) as follows;

a = \frac{dv}{dt}

a = \frac{d(3i - 4.00tj)}{dt}

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The magnitude of the acceleration |a| is therefore given by

|a| = |-4.00|

|a| = 4.00 m/s²

In conclusion;

the speed of the object is (3i - 4.00tj)m/s

the magnitude of the acceleration is 4.00m/s²

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Which of the best describes a solution
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