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Valentin [98]
3 years ago
6

Please please help me please

Physics
2 answers:
Julli [10]3 years ago
8 0

Answer:

Could I get brainest answer

I think it is B and e

bazaltina [42]3 years ago
5 0

Answer:

The answer is D hope it helps

Explanation:

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Jobisdone [24]

Answer:

A wavelength is a measure of distance between two consecutive crests or trough. So , the unit of wavelength is same as unit of distance. I.e metre

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3 years ago
How fast must a 1000 kg car be moving to have a kinetic energy of:
VMariaS [17]

Answer:

\mathrm{(a)}\: 2\: \mathrm{m/s}\\\mathrm{(b)}\: 20\: \mathrm{m/s}\\

Explanation:

The kinetic energy of an object is given by KE=\frac{1}{2}mv^2 where m is the mass of the object and v is the velocity of the object.

We can set up the following equations with the information given:

\mathrm{(a)}\: 2.0\cdot 10^3=\frac{1}{2}\cdot 1000\cdot v^2, \\v=\fbox{$2\: \mathrm{m/s}$}

For part B, we have the same equation, but kinetic energy is now 2.0\cdot 10^5.

Therefore:

\mathrm{(b)}\: 2.0\cdot 10^5=\frac{1}{2}\cdot 1000\cdot v^2, \\v=\fbox{$20\: \mathrm{m/s}$}.

6 0
3 years ago
A technician attaches one lead of a digital voltmeter to the ground terminal of the TP sensor and the other meter lead to the ne
wariber [46]

Answer:

Neither A or B

Explanation:

The 37.3mv is not the signal voltage

sensor ground circuit does not has excessive resistance.

5 0
3 years ago
2. Before 0.5-kg ball is dropped from a third story window 20 m above the sidewalk. What is the potential
Flauer [41]

Answer:

C

Explanation:

C

20*9.8*0.5

98

4 0
3 years ago
Read 2 more answers
Which scenario describes a systematic error?
Tamiku [17]

Answer:

The answer is C, a thermometer reads 0.1 degree higher than it should.

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4 years ago
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