3 years ago

What is the power involved in lifting a 1.0-kg object 1.0 m in 1.0 s??

1 answer:

5 0

Mass = 1kg
Distance = 1m
Time = 1s
Force= Mass x Acceleration due to graviy
          = 1 x 9.8 = 9.8
Velocity = Distance / time
              = 1 / 1 =1m/s
Power = Force x velocity
           = 9.8 x 1 = 9.8 W

You might be interested in

What is this Regeneration

Mila [183]

Answer:

Regeneration means that an organism regrows a lost part, so that the original function is restored.

5 0

3 years ago

Read 2 more answers

When buying a car, you tell the salesman that you want to make sure the car can go from 0 miles per hour to 60 miles per hour in

MaRussiya [10]

Acceleration....................................... <span />

4 0

3 years ago

Read 2 more answers

The distance between a speaker and a listener is 8.0 m. Determine the frequency of the sound wave if exactly 20 waves are formed

dmitriy555 [2]

The frequency of the wave is 6800 Hz

<u>Explanation:</u>

Given:

Wave number, n = 20

Speed of light, v = 340 m/s

Frequency, f = ?

we know:

wave number = $\frac{frequency}{speed of light}$

$20 = \frac{f}{340 m/s} \\\\f = 20 X 340 s^-^1\\\\f = 6800 Hz$

Therefore, the frequency of the wave is 6800 Hz

4 0

3 years ago

Please help meeeeeeeeeeeeeeee

maxonik [38]

probabilityAnswer:

2/27

Explanation:

The elk can not be eaten so we remove that from the probablity

so we have x/18

songbird = 4/18

mice = 6/18

4/18*6/18 = 2/27

5 0

2 years ago

Here is a graph of speed vs time. If the object is moving to the east, which BEST describes the speed and velocity of the graph?

Artemon [7]

Answer:

Both speed and velocity are changing.

Explanation:

They are both going up so both are changing

5 0

3 years ago