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Nana76 [90]
3 years ago
11

If the temperature of a piece of steel decreases, what happens to its density? (1 point)

Physics
2 answers:
Lelechka [254]3 years ago
5 0

temperature decreases the density will increase.

zlopas [31]3 years ago
3 0
As temperature decreases, the steel will contract (volume decreases) thereby, an increase in Density.
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It takes 300 newtons of force and a distance of 20 meters for a moving car to come to stop
Andrei [34K]
The answer is 15 I think.
7 0
4 years ago
Course Task
kaheart [24]

Answer:

gravity effects only the mass of an object

Explanation:

an acorn is heavier that a stick and it's round shape gives it less wind resistance so gravity pulls it down faster. A stick vertical has little wind resistance but when rotated to when it is horizontal it has more resistance so it slows down but the the force of gravity is still as strong. A leaf has very little mass and it's shape provideds lots of wind resistance so it falls slower. The moon is not only effected by the earth's gravity it is also effected by the suns. It has its own gravity as well. with all these factors it stays in place and moves with the earth.

4 0
3 years ago
A conducting coil of 1850 turns is connected to agalvanometer, and the total resistance of the circuit is 45.0 ohm.The area of e
Xelga [282]

Answer:

0.459 Tesla

Explanation:

Faraday's law:

Emf = -N\frac{\delta\phi}{\delta t}

Φ= NAB

V =   N Δ (BA) /Δt      

the change in BA

was:    BA =  0   because initially B was zero.

V=IR

   IR =   N B A /Δt

   q / Δt ×R   =      N B A / Δt

Or:    B =   q R / NA = 8.87 x 10^-3 × 45.0 / 1850×4.7 x 10^-4 =

          = 0.459 Tesla

3 0
4 years ago
Is this unbalanced force or is it balanced also is it technically acceleration?
Ivan

Answer:

Unbalanced

Explanation:

There is an acceleration. Look at the direction of the arrows.

7 0
3 years ago
When all parts of a circuit are composed of conducting materials, the circuit is said to be
den301095 [7]

When all parts of a circuit ... all the way from one terminal of the
battery or power supply to the other terminal ... are composed of
conducting materials, then current can flow in the circuit, and the
circuit is said to be 'closed'.

4 0
4 years ago
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