PHYSICS HIGH SCHOOL

Similar poles of bar magnets attract each other.
True
False

Answers

Answer 1
Answer: (False) similar poles repel and opposite poles attract each other.

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A 2,100 kg car is lifted by a pulley. If the cable breaks at 4.50 m, what is the velocity of the car when it hits the ground

Answers

The problem involves the conversion of potential energy to kinetic energy as the object falls from rest. Energy is conserved, so the equation used is:

PEi + KEi = PEf + KEf

Since the object is falling from rest, the initial kinetic energy is zero. Also, since the object hits the ground at its final position, the final potential energy is zero. This leaves:

PEi = KEf
mgh = 1/2 mv^2

*cancel out mass on both sides of the equation

gh = 0.5v^2
v = sqrt(2gh) = sqrt(2*9.81*4.5) = 9.40 m/s --> final ans.

The overall function of the calvin cycle is __________.

Answers

The overall function of the calvin cycle is to produce sugars (glucose).

CALVIN CYCLE:

  • The Calvin cycle is the second stage of photosynthesis that occurs in the stoma of the chloroplast organelle.

  • The Calvin cycle uses the products of the first stage called light stage (ATP and NADPH) to produce sugar molecules.

  • Calvin cycle also recovers the raw materials needed for the process to continue in a cyclical manner.

  • However, overall function of the calvincycle is to produce sugars(glucose).

Learn more at: brainly.com/question/3199721?referrer=searchResults

Answer:

the primary function of the Calvin cycle is to make organic products plants need, using the products from the light reactions of photosynthesis (ATP and NADPH).

Explanation:

hope this helped

The strength of gravitational force is dependent on the masses of and distance between two objects. a. True
b. False

Answers


Truer words are seldom written.

Alisha uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up even though the switch is in the closed position. Which might explain the problem?

Answers

Alisha uses wire to connect a battery, a lightbulb, and a switch, but the bulb does not light up even though the switch is in the closed position. The switch is in closed position that is why her circuit would not work. It must be open so that electrons can move along the wire and enable the lightbulb to light up.

The Sun emits a lot of radiation. The different types of radiation are the electromagnetic spectrum. Which of the following wave types are part of the spectrum?

Answers

All parts of the electromagnetic spectrum are
the same "type" of wave.

Depending on their frequency/wavelength, people
have given them names like ...

-- radio waves
-- microwaves
-- infrared radiation
-- visible light
-- ultraviolet light
-- X-rays
-- granma rays

Matter is the ability to cause change.

Answers

The statement ‘Matter is the ability to cause change’ is false. Matter is anything that occupies space and has mass. It does not have the ability to change because it represents the bulk of a matter such as solid liquid and gas.
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