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3 years ago

Imagine a 10kg block moving with a velocity of 20m/s to the left.

1 answer:

3 0

Kinetic energy , KE= [1/2]m*v^2

m = 10 kg
v=20m/s

KE = [1/][(10kg)(20m/s)^2 = [1/2](10kg)(400m^2/s^2) = 2000 joule

Answer: 2000 joule

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Answer:

$r=5.278\times 10^{-4}\ m$

Explanation:

Given that:

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$1.92\times 10^{-19}=0.5\times 9.1\times 10^{-31}\times v^2$

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3 years ago

Answer this plsss A mobile phone operates at 900 MHz. What wavelength does it use?

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Answer:

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2 years ago

Two liquids, A and B, have equal masses and equal initial temperatures. Each is heated for the same length of time over identica

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Answer:

So the specific heat of the liquid B is greater than that of A.

Explanation:

Liquid A is hotter than the liquid B after both the liquids are heated identically for the same duration of time from the same initial temperature then according to heat equation,

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$\Delta T\propto\frac{1}{c}$

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2 years ago

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