2 years ago

What timeis the name of the units that

Physics

1 answer:

Westkost [7]2 years ago

7 0

Answer:

Joule is the name of the unit that are normally used to measure energy

Explanation:

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What is one way to increase the amplitude of a wave in a medium

vovikov84 [41]

supply it with more energy. one way to do is to produce vibrations in the same frequency as the wave. This would cause resonance leading to higher amplitude

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3 years ago

A truck with 0.420-m-radius tires travels at 32.0 m/s. what is the angular velocity of the rotating tires in radians per second?

andrey2020 [161]

Angular velocity of the rotating tires can be calculated using the formula,

v=ω×r

Here, v is the velocity of the tires = 32 m/s

r is the radius of the tires= 0.42 m

ω is the angular velocity

Substituting the values we get,

32=ω×0.42

ω= 32/0.42 = 76.19 rad/s

= 76.19× $\frac{1}{2\pi} *60$ revolution per min

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Angular velocity of the rotating tires is 76.19 rad/s or 728 rpm.

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3 years ago

Which statement correctly compares infrared light to ultra violet light

mrs_skeptik [129]

What are the statements?

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3 years ago

A 0.10-kg ball, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19 m/s. What is the 7) magnitude of the change

IRISSAK [1]

Answer:

Change in momentum will be -4.4 kgm/sec

So option (A) is correct option

Explanation:

Mass of the ball is given m = 0.10 kg

Initial velocity of ball $v_1=25m/sec$

And velocity after rebound $v_2=-19m/sec$

We have to find the change in momentum

So change in momentum is equal to $=m(v_2-v_1)=0.1\times (-19-25)=-4.4kgm/sec$ ( here negative sign shows only direction )

So option (A) will be correct answer

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3 years ago

Which form of electromagnetic radiation with a relatively high amount of energy is used to sanitize lab goggles?

Nostrana [21]

Answer:

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3 years ago