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azamat
3 years ago
10

Give an example of an energy conversion that produces an enwanted from of energy

Physics
1 answer:
stira [4]3 years ago
4 0
An example of an energy conversion that produces an unwanted form of energy is mixing acids with water. 
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A rocket is launched upward with a constant acceleration of 165 m/s^2. After 8.00 seconds of ascension a passenger on the rocket
Novay_Z [31]

To solve this problem we will apply the concepts related to the linear kinematic movement. We will start by finding the speed of the body from time and the acceleration given.

Through the position equations we will calculate the distance traveled.

Finally, using this same position relationship and considering the previously found speed, we can determine the time to reach your goal.

For time (t) and acceleration (a) we have to,

t = 8s, a = 165m/s^2

The velocity would be,

u = a*t \\u = 165*8\\u = 1320m/s

Now the position is,

h= \frac{1}{2} at^2

h = \frac{1}{2} 165*8^2

h = 5280m

Now with the initial speed and position found we will have the time is,

h=ut +\frac{1}{2} at^2

-5280=1320t - \frac{1}{2} 9.8t^2

4.9t^2-1320t-5280=0

Solving the polynomian we have,

t = 273.33s = 4.56minutes

Therefore  the rocket will take to hit the ground around to 4.56min

5 0
3 years ago
Efficiency of electrons causes negative charge why?​
Paraphin [41]

Answer:

Electron is negatively charged because you don't get work or in simple words charge out of it.

Explanation:

4 0
3 years ago
A car travels around a curve. What can you say about the centripetal force if the velocity is tripled?
Lesechka [4]

Answer:

F = M a = M v^2 / R

If v is increased by three the force will be increased by nine,

C) is correct

4 0
2 years ago
What is universal laws of gravitation ​
valentinak56 [21]

Answer:

Newton's law of universal gravitation states that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Explanation:

7 0
3 years ago
A vertical straight wire carrying an upward 28-A current exerts an attractive force per unit length of 7.83 X 10 N/m on a second
JulijaS [17]

Answer:

i_2 = 978750 A

Since the force between wires is attraction type of force so current must be flowing in upward direction

Explanation:

Force per unit length between two current carrying wires is given by the formula

F = \frac{\mu_0 i_1 i_2}{2 \pi d}

here we know that

F = 7.83 \times 10 N/m

d = 7.0 cm = 0.07 m

i_1 = 28 A

now we will have

F = \frac{4\pi \times 10^{-7} (28.0)(i_2)}{2\pi (0.07)}

7.83 \times 10 = \frac{2\times 10^{-7} (28 A)(i_2)}{0.07}

i_2 = 978750 A

Since the force between wires is attraction type of force so current must be flowing in upward direction

3 0
3 years ago
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