3 years ago

Let’s say you pour an ounce of water from a class into a bowl. Does the water’s mass change?

1 answer:

5 0

Answer:

No. If you take 5$ from your wallet and place on the shelf, does it change its value - No. So if you take the water from class(does not matter how much) and pour all of it somewhere else, it doesn't change its mass, yet it changes its shape.

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The space shuttle travels at a speed of about 7.6times10^3 m/s. The blink of an astronaut's eye lasts about 110 ms. How many foo

sveta [45]

Answer:

It covers distance of 9.15 football fields in the said time.

Explanation:

We know that

$Distance=Speed\times Time$

Thus distance covered in blinking of eye =

$Distance=7.6\times 10^{3}m/s\times 110\times 10^{-3}s\\\\Distance=836 meters$

Thus no of football fields= $\frac{936}{91.4}=9.15Fields$

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3 years ago

If a stone with an original velocity of zero is falling from a ledge and takes eight seconds that it the ground what is the fina

Natalka [10]

Answer: 78.4 m/s

The formula for speed using known acceleration:

$v=at+v_0=gt+v_0$

where the initial velocity v0 = 0 in this case, g is the gravitational acceleration and t is given to be 8 seconds, so:

$v = 9.8 \frac{m}{s^2}\cdot 8 s=78.4 \frac{m}{s}$

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3 years ago

A 2-kg bowling ball is 1 meter off the ground on a post when it falls just before it reaches ground it is travelling 4.4 m/s ass

MissTica

<span>mechanical energy is E=mgh+ 1/2 mV²=2*9.8*1+1/2*2*4.4²=38.96J,
the only force is P, that is a conservative force so the answer is
</span>mechanical energy is conserved and its value is <span>38.96J, </span>

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4 years ago

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What is the temperature of a gas in which the atoms are moving very very slowly?

pickupchik [31]

Cold.
Example: A frozen object (such as ice) is solid. Its molecules move extremely slow because the object itself isn't moving... It's like the skin on your bod... Imagine that wiggling and writhing on your bones. It's not like a gas, that can move freely and has no specific form or hold.
So again, the answer is Cold.

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Vedmedyk [2.9K]

The mass of objects and distance between them

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4 years ago

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