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Novay_Z [31]
4 years ago
14

To help a child who's unhappy because she wants a toy, you can make all of these statements, except.

Physics
2 answers:
Nataly [62]4 years ago
8 0
A would be the best answer to this question

natulia [17]4 years ago
8 0
<span>D. "We don't have time right now, but tomorrow I'll put your name down to go first. Would you like that?" D is what im thinking, hope that helps

</span>
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Average amount of time wind machines operate
Rasek [7]

The wind machine on an average operates for a time of about \boxed{3-4\text{ hours}}.

Explanation:

The wind energy is the method of using the energy carried by the wind to generate the power. The wind energy is the considered as the conventional  and clean source of energy.

The wind machines require the high power winds to rotate the blades of the windmill and produce power using the energy of the moving wind.

The winds blow at such high speed for a very small time during the day, the wind machine cannot be expected to work for a longer time during the whole day.

The wind energy can be obtained form a wind mill for a limited time unlike the other form of energy like thermal energy or even the solar energy. The thermal energy can be obtained at anytime due to burning of fuel whereas the solar energy can at least be obtained during the whole day time.

Thus, the wind machine on an average operates for a time of about \boxed{3-4\text{ hours}}.

Learn More:

1. Acceleration of the box under friction brainly.com/question/7031524

2. The kinetic energy of an object depends on the brainly.com/question/137098

3. The approximate time taken to walk for 2000 miles brainly.com/question/3785992

Answer Details:

Grade: Middle School

Subject: Physics

Chapter: Energy

Keywords:

wind energy, conventional source, energy, thermal, solar, 3-4 hours, high speed, machine, time, operate.

6 0
3 years ago
You lift a bowling ball with your hand, accelerating it upward. What are the forces on the ball and on what objects are they exe
Snowcat [4.5K]

Answer:

Explanation:

When we lift a ball with the hand the forces experienced by the ball is  

  • Force of your hand
  • Gravitational force

Resultant of these forces gives acceleration to the ball

While your hand exerts a force on the ball, the ball will also exert a force of equal magnitude but opposite in direction to the force by hand.

All these forces is exerted on the ball, hand or on the earth.

7 0
4 years ago
In Hooke's law, Fspring=kΔx , what does the Fspring stand for?
Mrrafil [7]

Answer:

The amount of force acting on the spring.

Explanation:

Here, Fspring= kΔx  is a equation denoting the amount of force acting on the spring.

where, k = spring constant.

           Δx= change in the length of the spring.

so, for every Δx change in spring length, kΔx force acts on the spring.

6 0
3 years ago
Read 2 more answers
A car begins at rest (0 velocity), 5 seconds later it is travelling at 20 meters/per second. What was the acceleration of the ve
klasskru [66]

use the formula

v= u+ at

v is final velocity , u is initial velocity , a is acceleration and t is time

put the values

20 = 0+ a×5

a = 4 m/s²

4 0
3 years ago
Read 2 more answers
What’s happening to the car’s motion?
ExtremeBDS [4]

Answer:

It returned to where it had started at the end of the trip

Explanation:

5 0
3 years ago
Read 2 more answers
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