All categories

3 years ago

What is the relationship between amplitude and frequency of a wave?.

Physics

1 answer:

Fynjy0 [20]3 years ago

4 0

Answer:

Inversely proportional

Explanation:

The amplitude and frequency of a wave have an inverse connection, with the amplitude being inversely proportional to the frequency. As the frequency rises, the amplitude falls. As the frequency decreases, the amplitude increases.

You might be interested in

A laser pulse takes 2.56 seconds to travel from Earth to the Moon and return. Use this to calculate how far away the Moon is. Ho

Deffense [45]

Answer:

$x = 3.84\times 10^{5}\,km$

This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.

Explanation:

The laser pulse has an ondulatory nature as electromagnetic wave, which can travel in the void. Speed of light is constant and distance between Earth and the Moon is:

$x = 0.5\cdot c\cdot \Delta t$

$x = 0.5\cdot (3\times 10^{5}\,\frac{km}{s})\cdot (2.56\,s)$

$x = 3.84\times 10^{5}\,km$

This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.

7 0

3 years ago

A 6 kg bowling ball moves with a speed of 3 m/s. How fast does a 7 kg bowling ball need to move so that it has the same kinetic

maw [93]

Answer: 7 kg bowling ball must move with a speed of 2.8 m/s so that it has the same kinetic energy.

Explanation:

Kinetic energy is the energy possessed by a body by virtue of its motion.

$K.E=\frac{1}{2}mv^2$

m = mass of object

v= velocity of the object

$K.E=\frac{1}{2}\times 6kg\times (3m/s)^2=27Joules$

b) for a 7 kg bowl to have kinetic energy of 27 Joules:

$27J=\frac{1}{2}\times 7kg\times v^2$

$v^2=7.7$

$v=2.8m/s$

Thus 7 kg bowling ball must move with a speed of 2.8 m/s so that it has the same kinetic energy

4 0

3 years ago

Ivenika [448]

The ant's resultant velocity is 0.51 m/s at 78.7°

Since the ant is moving with a velocity of 0.1 m/s in the +x direction relative to the treadmill, and the treadmill is moving 0.5 m/s in the +y direction, the magnitude of the resultant velocity of the ant relative to the ground (since both directions are perpendicular) is thus

V = √(x² + y²)

= √[(0.1 m/s)² + (0.5 m/s)²]

= √[0.01 m²/s² + 0.25 m²/s²]

= √(0.26 m²/s²)

= 0.51 m/s.

The direction is Ф = tan⁻¹(y/x)

= tan⁻¹(0.5 m/s ÷ 0.1 m/s)

= tan⁻¹(5)

= 78.69°

≅ 78.7°

The ant's resultant velocity is 0.51 m/s at 78.7°

Learn more about resultant velocity here:

brainly.com/question/15093278

7 0

3 years ago

An AC source operating at a frequency of 250 Hz has a maximum output voltage of 6.00 V. What is the smallest inductor that can b

Julli [10]

Answer:

1.274 H

Explanation:

using

V = XLI...................Equation 1

Where V = voltage, XL = Inductive reactance, I = current.

Make XL the subject of the equation

XL = V/I.............. Equation 2

Given: V = 6.00 V, I = 3.00 mA = 0.003 A

Substitute into equation 2

XL = 6/0.003

XL = 2000 Ω

But,

XL = 2πFL............... Equation 3

Where F = Frequency, L = inductance.

Make L the subject of the equation

L = XL/(2πF).............. Equation 4

Given: F = 250 Hz, XL = 2000 Ω

Constant: π = 3.14

L = 2000/(2×3.14×250)

L = 2000/1570

L = 1.274 H.

3 0

3 years ago

A car travels 50 miles in 2.5 hours. Calculate the average velocity

Dahasolnce [82]

In order to calculate velocity, we would need to know where the car was
when it started out, and where it was when it stopped. Without any of this
information, the best we can do is calculate its average speed.

Average speed = (distance covered) / (time to cover the distance)

   = (50 miles)    / (2.5 hours)

   =    (50 / 2.5)    mile/hour

   = 20 mile/hour .

5 0

4 years ago