PHYSICS HIGH SCHOOL

Jose has a solid green ball. Which color(s) of light does this ball reflect? A.
blue and yellow

B.
green

C.
all colors except green

D.
white

Answers

Answer 1
Answer: If the ball is green, then it is absorbing all the colors of light except green. This means that it is reflecting or denying the absorption of green light, that is why the ball is green. Therefore, your answer would be B.

Hope I helped :)

About 85% sure on this one. 
Answer 2
Answer: The ball reflects the green because the ball absorbs all the other colors except green so that's why its the green light is covering it and its absorbing everything else 

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One consequence of Einstein's theory of special relativity is that mass is a form of energy. This mass-energy relationship is perhaps the most famous of all physics equations: E=mc2,
where m is mass, c is the speed of the light, and E is the energy. In SI units, the units of speed are m/s. For the preceding equation to have consistent units (the same units on both sides of the equation), the units of E must be which of the following?

Answers

Answer:

Unit of energy is kg-m/s or Joules.

Explanation:

The mass- energy relationship in physics is given by :

E=mc^2

Where

m is the mass of the object

c is the speed of light

The SI unit of m is kilogram while the SI unit of c is as same as speed of light i.e. m/s. So, the unit of energy is kg-m/s. It is also equivalent to Joules.

So, the SI unit of energy is kg-m/s or Joules. Hence, this is the required solution.
Joule is the si unit for energy

Magnesium is a metal that is commonly used in products that needed to be light weight. Suppose a 2.00kg piece of magnesium has 8160 j of entertainment added to it it's temperature increases 4K what is the specific heat of magnesium

Answers

Given that,

Mass of magnesium, m = 2 kg

Heat added to it, Q = 8160 J

Increase in temperature, \Delta T=4\ K

To find,

The specific heat of magnesium.

Solution,

Th formula that is used to find the heat required to raise the temperature in terms of specific heat is given by :

Q=mc\Delta T\n\nc=(Q)/(m\Delta T)\n\nc=(8160\ J)/(2\ kg* 2\ K)\n\nc=2040\ J/kg-K

So, the specific heat of magnesium is 2040\ J/kg-K.

Do you get the same answer if you drive 1.0x10²km at each of the two speeds

Answers


That all depends on what the question is.

If the question is "How long does it take you to get there ?",
then the answer is 'No' .

If the question is "What color is the car ?", then
the answer is 'Yes' .

A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a forceA)of zero
b) of less than 600 N is the truck is slowing down
c) equal to 600 N only if the truck is moving at constant velocity
d) equal to 600 N no matter what the acceleration of the truck
e) greater than 600 N if the truck is accelerating

Answers

A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force equal to 600 N no matter what the acceleration of the truck. Option c is correct.

What is Newton's third law of motion?

According to Newton's third law of motion, every action has an equal and opposite reaction. As well as the action and reaction are always acted in pairs.

Based on the law of action-reaction,

A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force greater than 600 N if the truck is accelerating.

If the truck is moving at constant velocity the acceleration is zero resulting in no force exerted by the truck on the trailer

The force by which the transport truck pulls on a trailer is equal to the force by which the trailer pulls the truck.

F₁ is the force by which the transport truck pulls on a trailer

F₂ is the force by which the trailer pulls the truck

F₁=F₂

A 600N [E] pulling force is applied by a transport vehicle to a trailer. Regardless of the transport truck's acceleration, the trailer pulls on it with a force of 600 N.

To learn more about Newton's third law of motion refer to the link;

brainly.com/question/974124

#SPJ2
D because newton's third laws states for every force there is an equal and opposite force.

In scientific terms, how is power related to work? A.Power is the ability to do work.


B.Power is the force of work over a certain distance.


C.Power is the rate at which work is accomplished.


D.Power is the energy supplied in a force.

Answers

The answer is c. Hope this helps :)

If Mr. Kirwan’s pet Fluffy the Wonder Hamster rides his unicycle at a rate of 5m/s to thenorth on a flatbed train car. Under what conditions do you see him moving at 5 m/s?

Answers

The condition that would induced the seer or observer to see that the pet hamster is moving at 5 m/s is when the train is also moving at that speed. This is because the unicycle will only allow limited vision to the seer thinking that the pet hamster is not moving at that speed. 
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