Question 10 (1 point)

Physics

1 answer:

Korvikt [17]2 years ago

5 0

Answer:

Helium gas

Explanation:

~ Mechanical waves move more quickly through solids than through gases because mechanical waves propagate with the vibrations of the particles they move through. ... The particles in gases are more spread out than the particles in solids or in liquids, so electromagnetic waves move quickly through gases.

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Which two pieces of evidence most directky support the idea that all matter in the universe began as a sibgke point of energy.

Aleks04 [339]

Answer:

YOUR ANSWER IS GIVEN BELOW:

Explanation:

The abundance of helium in the universe and the redshift of light from the galaxies.

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2 years ago

The two forces in each pair can either both act on the same body or they can act on different bodies. The two forces in each pai

kotykmax [81]

Answer: The given statement is false.

Explanation:

According to Newton's third law of motion, every action has an equal and opposite reaction. So, when we apply force in one direction on an object then the object also applies a force in the opposite direction.

Hence, it is true that two forces in each pair of forces act in opposite directions.

For example, when we push a wooden box of 20 kg in the forward direction then the box will also apply a force in the opposite direction.

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2 years ago

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Goryan [66]

That's the definition of pressure ... force on a given area.

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2 years ago

In the great shopping cart race, two students push on shopping carts. A having twice the mass of B, with the same force applied

fiasKO [112]

B. cart B

Explanation:

The acceleration of each cart is given by Newton's second law:

$F=ma$

$a=\frac{F}{m}$

where F is the force applied, a is the acceleration and m is the cart's mass.

The force F applied is the same for the two carts, however the mass of cart A (mA) is twice than the mass of cart B (mB), so we can rewrite the two accelerations:

$a_A = \frac{F}{m_A}=\frac{F}{2 m_B}$