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alina1380 [7]
4 years ago
9

A 1500 kg car travels 400 m in 12s .What is it’s momentum?

Physics
1 answer:
avanturin [10]4 years ago
3 0

Answer:

P car = 1500×400/12= 50,000kgm/s

P electron= 9.1×3.5×10^(-31+6)

= 31.85×10^-25 kgm/s

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A piece of Nichrome wire has a radius of 6.5 104 m. It is used in a laboratory to make a heater that uses 4.00 102 W of power wh
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Answer:

L=4.8*10^{17}m

Explanation:

Given data

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Solution

We know that resistance of wire can be obtained from

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So

L=\frac{RA}{p}\\ L=\frac{\frac{(V^{2})}{P}(\pi r^{2}) }{p} \\L=\frac{V^{2}(\pi r^{2})}{pP}\\ L=\frac{(120V)^{2}\pi (6.5*10^{4} m)^{2}  }{100*10^{-8}(4.00*10^{2} W) }\\ L=4.8*10^{17}m

6 0
3 years ago
The atomic number of an atom is _____
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The proton number? number of protons
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The answer is imperial units
8 0
3 years ago
A 15.0-kg block is dragged over a rough, horizontal surface by a 70.0-N force acting at 20.0° above the horizontal. The block is
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Answer:

Explanation:

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3 years ago
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