wavelength of the EM wave produced by your iclicker is 0.33 m.
<h3>What makes an EM wave?</h3>
- When an electric field (illustrated in red arrows) combines with a magnetic field, electromagnetic waves are generated (which is shown in blue arrows). An electromagnetic wave's magnetic and electric fields are perpendicular to each other and to the wave's direction.
- A changing magnetic field causes a changing electric field, and vice versa—the two are inextricably related. Electromagnetic waves are created by changing fields. Electromagnetic waves, unlike mechanical waves, do not require a medium to propagate.
The clicker emits EM (electromagnetic) wave which travels at the speed of light, that is
v = 3 x 10⁸ m/s
The frequency is
f = 900mHz = 9 x 10⁸ Hz
velocity = frequency * wavelength, the wavelength, λ, is given by
fλ = v
λ = v/f
= (3 x 10⁸ m/s) / (9 x 10⁸ 1/s)
= 1/3 m = 0.333 m
To learn more about electromagnetic waves refer,
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Explanation:
Volume of 10 coins = 100ml - 75ml = 25ml
Volume of 1 coin = 25ml / 10 = 2.5ml
The average volume of each coin is 2.5ml.
Answer:
4NaBr + 2CaF2 ---------- 4 NaF + 2CaBrz
Explanation:
Redox reactions involve the gain or loss of C. electrons
Answer:
34.75m
Explanation:
Parameters given:
Net force, F = 320N
Work done by net force, W = 4700 N
Angle, θ = 65º
Work done at an angle is given as:
W = F * d * cosθ
Where d = distance travelled
θ is the angle between the force and the direction of motion.
Therefore,
4700 = 320 * d * cos65
=> d = 4700/(320 * cos65)
d = 34.75 m