3 years ago

The heat Fusion is the amount of heat required to__

Physics

1 answer:

Annette [7]3 years ago

5 0

C. Melt 1g if solid into liquid.

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Murrr4er [49]

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A: any mirror.

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2 years ago

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All endothermic reactions absorb heat and make the surroundings warm

svet-max [94.6K]

Answer:

b: false

Explanation:

It's true that endothermic reactions absorb heat from their surrounding. But this makes the surroundings cooler, not warmer.

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3 years ago

If the distance d (in meters) traveled by an object in time t (in seconds) is given by the formula d=a+bt2, the si units of a an

ss7ja [257]

Distance , d = a+b $t^2$

The unit of d is in meter and t is in seconds.

So the unit of a a must be meter.

Now we have unit of b $t^2$ is meter.

So unit of b* $second^2$ = meter

Unit of b = meter/ $second^2$

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2 years ago

The resistance of a wire depends upon the material's resistivity and the length and cross‑sectional area of the wire. What will

andriy [413]

Answer:

R' = 4R

The resistance will become 4 times the initial value.

Explanation:

The resistance of a wire at room temperature, is given by the following formula:

R = ρL/A ----------- equation 1

where,

R = Resistance of wire

ρ = resistivity of the material

L = Length of wire

A = Cross-sectional area of wire

Now, if the length (L) is multiplied by 4, then resistance will become:

R' = ρ(4L)/A

R' = 4 (ρL/A)

using equation 1:

<u>The resistance will become 4 times the initial value.</u>

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3 years ago

What mountains range can be seen from vancouver wa?

kirill115 [55]

The North Shore mountains

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2 years ago

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