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Kitty [74]
3 years ago
11

Which kind of waves is not part of the electromagnetic spectrum?

Physics
1 answer:
Dennis_Churaev [7]3 years ago
5 0
The answer is radio waves
You might be interested in
A battery is connected to a light bulb in a circuit. There is a current of 2 A in the light bulb.
Georgia [21]

Answer:

Resistance of the light bulb = 1.33 ohm (Approx.)

Explanation:

Given:

Current in electric bulb = 2 Amp

Voltage in battery = 1.5 Volt

Find:

Resistance of the light bulb

Computation:

Resistance = Voltage / Current

Resistance of the light bulb = Voltage in battery / Current in electric bulb

Resistance of the light bulb = 2 / 1.5

Resistance of the light bulb = 1.33 ohm (Approx.)

5 0
2 years ago
The mass of a cm3(cube) stone is 180.
ss7ja [257]

 Density = (mass) / (volume), no matter how large or small the sample is.

We can't calculate the density, because you left out the number for the volume.
Also, you didn't tell us the unit for the mass of 180.

a).  If the mass is 180 grams, then the density is 

                               (180 gm) / (volume) .

b).  No matter how many pieces you crush it into, and
no matter how large or small a piece is, its density is
the same.  (I just wish we knew what the density really is.)

c).  A piece may have 80 grams of mass.  It doesn't "weigh" 80 grams.

Since the density of the whole rock is  (180 gm) / (volume),
the density of any piece of it is  (180 gm) / (volume).

Multiply each side by (volume):   (Density) x (volume) = 180 gm

Divide each side by (density):        Volume = (180 gm) / (density)

We can't calculate the volume of an 80-gm piece, because
we don't know the density.  (That's because you left the volume
out of the question.)

4 0
3 years ago
An unknown solid weighs 31.6 n. when submerged in water, its apparent weight is 19.8 n. what is the specific gravity of the unkn
KATRIN_1 [288]

specific gravity of the unknown sample = 2.68

Explanation:

True weight of solid=31.6 N

Apparent weight=19.8 N

loss in weight= 31.6-19.8=11.8 N

Loss in weight= weight of the liquid displaced

so weight of water displaced= 11.8 N

now specific gravity= weight of object/ weight of liquid displaced

specific gravity= 31.6/11.8

specific gravity= 2.68

6 0
3 years ago
The weight of a 2-kilogram object on earth is _________.
ikadub [295]
19.6 N........weight is equal to mass multiplied by gravitational force which is 9.8 m/s2......2 x 9.8 gives 19.6 N
5 0
3 years ago
W&P3)A janitor pushes a mop with a force of 52 N. If the mop handle is at an angle of 52 degrees above the horizontal, how m
Brilliant_brown [7]

Answer:

the \: required \: work is \to \\ \boxed{w = 147.3 \: J}

Explanation:

the \: required \: force \: is \: the \: horizonal \: component \: of \: \\  the \: force \: f_{x} = 52 \cos(52)  =  \boxed{32.014396716 \: N} \\ the \: work \: to \: be \: done \: is  \to \\ w = f \times s = 32.014396716 \times 4.6 \\  \boxed{w = 147.26622489 \: J}

4 0
3 years ago
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