How many units measure one wavelength? a 16 b 8 c 2 d 4

.Imagine that you pushed a box, applying a force of 60 newtons, over a distance of 4 meters. how much work have you done? 15 jou

DaniilM [7]

Work=force X distance
Newtons is a measurement of force
4 meters is your distance 60×4=240

240 joules

5 0

3 years ago

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Waves must exhibit a constant phase difference for interference to occur. Please select the best answer from the choices provide

zalisa [80]

True is what it is/ ,,,,,,,,,,,,,

8 0

2 years ago

What happens to the kinetic energy of an object, if its velocity is doubled?

denis-greek [22]

As Kinetic Energy=half of Mass into Velocity square so as velocity is doubled the K.E of the object is doubled..

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3 years ago

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Calculate the total resistance in a parallel circuit made up of resistances of 2Ω, 3Ω, and 4Ω. (Hint: When converting to a decim

natta225 [31]

Answer:

Total resistance = 0.92Ω

Explanation:

For parallel connected resistors we have effective resistance

$\frac{1}{R_{eff}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+.....$

Here parallel circuit made up of resistances of 2Ω, 3Ω, and 4Ω.

That is

R₁ = 2Ω

R₂ = 3Ω

R₃ = 4Ω

Substituting

$\frac{1}{R_{eff}}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}\\\\\frac{1}{R_{eff}}=\frac{1}{2}+\frac{1}{3}+\frac{1}{4}\\\\\frac{1}{R_{eff}}=\frac{6+4+3}{12}\\\\R_{eff}=\frac{12}{13}=0.92ohm$

Total resistance = 0.92Ω

6 0

3 years ago

What precautions should be taken on board a vessel during a lightning storm?

dusya [7]

The precautions which should be taken on board a vessel during a lightning storm are:

(i) All electrical equipments should be unplugged.

(ii) Keep yourself away from all metal parts such as engines, metal tanks, stoves etc.

(iii) Stay inside the boat.

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3 years ago

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