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polet [3.4K]
3 years ago
14

A specific amount of water would have the same mass even if you turned it from a liquid to a solid or a gas is an example of

Physics
2 answers:
Elena L [17]3 years ago
7 0

Answer:

b.Law of conservation of mass

mezya [45]3 years ago
6 0
I believe the answer is: B
(law of conservation of mass)
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A cheetah runs with a positive acceleration. What does this tell you about the velocity time graph for the cheetah?
Katarina [22]
B is the correct answer
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A freight car moves along a frictionless level railroad track at constant speed. The freight car is open on the top. A large loa
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The added weight of the sand puts more downward pressure on the wheels contacting the rails, which would cause the trains speed to decrease.

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Find the final velocity if the initial velocity of 8 m/s with an acceleration of 7 m/s2 over a 3 second interval?
LenKa [72]

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5 0
3 years ago
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Machmer Hall is 400 m North and 180 m West of Witless.
yan [13]

Answer:

The distance from Witless to Machmer is 438.63 m.

Explanation:

Given that,

Machmer Hall is 400 m North and 180 m West of Witless.

We need to calculate the distance

Using Pythagorean theorem

D = \sqrt{(d_{m})^2+(d_{w})^2}

Where, d_{m} =distance of Machmer Hall

d_{w} =distance of Witless

Put the value into the formula

D = \sqrt{(400)^2+(180)^2}

D=438.63\ m

Hence, The distance from Witless to Machmer is 438.63 m.

5 0
3 years ago
Look at the circuit below. What is the voltage between points C and D?
stepan [7]

Option c) 1.5 V

Explanation:

<em>As the circuit is build in series first we will find the current passing through the complete circuit. Current stays the same in each element is the series cirucuit, however, the voltage is different.</em>

Voltage is given by the following formula:

V = IR

<em>Because we have to find current through whole circuit, we will first find resistance of the whole circuit.</em>

Equivalent Resistance R(eq): R1 + R2 = 60 + 60 = 120 ohm

Current passing through whole circuit be:

I = \frac{V}{R(eq)}\\I = \frac{3}{120} = 0.025


Now we will find out the voltage between C and D:

Current stays the same in series circuit: I = 0.025 c

Resistance between C and D is, R = 60 ohm

Voltage becomes, V = IR = 0.025 * 60 = 1.5 V





7 0
3 years ago
Read 2 more answers
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