PHYSICS MIDDLE SCHOOL

1. Initial velocity 5m/s, finalvelocity 36km/hr,
acceleration 1.25m/s/s.
Distance?

Answers

Answer 1
Answer:

Answer:

31.25m

Explanation:

Check attachment  
Answer 2
Answer:

Answer:

1.25ml

Explanation:

multioply

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A light bulb converts electrical energy into light energy and also some thermal energy. The amount of electrical energy is 50 Joules before the conversions.

Answers

If the amount of electrical energy is 50 Joules before the conversions, then it would be 50 Joules after the conversion.

According to law of conservation of energy, we cannot create or destroy energy so it remains constant

Hope this helps!

A wave's frequency is 2Hz and its wavelength is 4 m. What is the wave's speed?

Answers

w=lambda*f \n w=4m*2Hz \n w=8

What does aliens need to survive on Jupiter?

Answers


If you only asked me what does an animal need to survive in my house,
I couldn't answer that one either, until you tell me what animal you're
talking about.

Now you want to talk about aliens, of which #1): We have no evidence
that they even exist, and #2): If they do exist,we have no idea what kind
of a planet they live on, and #3): We have no idea what the environment
might be like on that planet.

So, to answer your question, I would say this:

In order to survive on Jupiter, an alien species would need exactly the
same things that Earthly humans would need there ... They would need
some set of materials and devices that could be used to duplicate the
conditions of atmosphere, temperature, pressure, gravitation, and
radiation in which their species evolved and to which it adapted, in
whatever place they came from.
I dont believe that there is aliens so they need nothing to survive because they arent real. But that is my opinion. Scientist say they are but in my belief i think they just saying that to get known.

What does it mean to say that the forces acting on an object are balanced?

Answers

Answer:

that would be for force and motion and it would be newtons laws and that would be like inertia

Explanation:

it would be the law of inertia: every action has a equal ad opposite reaction.

hope this helps :)

Answer:

If these are your answer choices:

A. The sum of the horizontal forces is zero.

B. All the forces combine to give zero net force.

C. The forces occur as pairs of forces with equal magnitude and direction.

D. The forces all have the same magnitude.

The correct answer is B. All the forces combine to give zero net force.

A baseball falling toward a player's glove gains _____ energy and loses _____ energy. A. potential; kinetic B. kinetic; potential C. kinetic; chemical D. chemical; potential

Answers

Answer:

I think it's B it can not be C or D because it has nothing to do with chemical energy

Answer:

Your answer is B

Explanation:

When a ball falls it is gaining kinetic energy because it gains speed as it falls.Since its gaining kinetic energy it loses potential energy so ur answer is B :) hope it helps

If a hockey puck slides on a perfectly frictionless surface, it willeventually slow down because of its inertia.

Answers

If the surface is perfectly frictionless AND level ... no ups and downs ... then the puck never slows down or stops. There's nothing to make it do so. (Notice that "perfectly frictionless" means no air resistance either.)
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