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kondor19780726 [428]
3 years ago
9

In order for work to take place the energy present must be related to the movement of the object.

Physics
1 answer:
kaheart [24]3 years ago
5 0

This is another one of those muddy misleading questions, followed by
a muddy group of choices from which an answer must be selected.

a).  is absurd.  There's no such thing as a "balanced force", only
a balanced group of forces.

b).  is probably the choice the question is aiming for.

c).  is not so.  The engines of an airplane do plenty of work lifting the plane
off the ground, although the force of the engines is never directed upward.

d).  is really awkward.  The object's motion is almost never the cause of the force.
The force is almost always the cause of the object's motion.

Now for the big 800-lb gorilla in the room:  No moving object needs to be involved
in order for energy to be flowing or work to be getting done.

-- A radio wave radiates through space.  Straighten out a wire coat-hanger and
stick it up in the air where the radio wave can pass by it.  Electrical current flows
through the wire, and you can drain the electrical energy out the bottom of it.  

-- A light bulb is shining.  Some distance away, something it's shining on
gets warm, because of the heat energy that has shot across to it from the
light bulb and soaked into it.

-- A lightning bolt jumps from the ground to a passing cloud.  Or, if you feel
more comfortable with it, a lightning bolt jumps from a cloud to the ground.
It doesn't matter.  Either way, there's enough energy splashing around to
ignite houses, zap TVs and computers, melt concrete, vaporize water, and
light up a city.  Although nothing is moving.

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ANSWER QUESTIONS WITH CORRECT ANSWERS FOR BRAINLIST! ANSWER ASAP!!
devlian [24]

Answer:

So, this is not the answer because I suck like that (hehe >:3) but here's some helps.

Explanation:

1. The magnitude of the net force acting on an object is equal to the mass of the object multiplied by the acceleration of the object as shown in the formula below.

2. If the net force acting on an object is zero, then the object is not accelerating, and is in a state known as equilibrium.

3. This will be were you use the info I gave to figure it out. I hope this wasn't completely unhelpful.

7 0
3 years ago
The phases of the moon depend on how much of the lighted side of the moon can be seen from earth.is this true or false
Sindrei [870]
The answer to this question is going to be False 

6 0
3 years ago
Describe two forms of energy-efficient transportation.
vodka [1.7K]
Electricity which may efficient transportation if you develop your way depending contact metal basis , such as electric train .

-Water is from of heat-energy using solar power which run a turbine may be wheel on a railway path.
6 0
3 years ago
Two motorcycles are traveling in opposite directions at the same speed when one of the cyclists blasts her horn, which has frequ
Galina-37 [17]

Answer:

6ms^-1

Explanation:

Given that the frequency difference is

( 563- 544) = 19

So alsoThe wavelength of each wave is = v/f = 344 /544

and there are 19 of this waves

So it is assumed that each motorcycle has moved 0.5 of this distance

in one second thus the speed of the motorcycles will be

=> 19/2 x 344/544 = 6.0 m/s

5 0
3 years ago
Question 7 (2 points)
Arlecino [84]

Answer:

Tire

Explanation:

3 0
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