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OleMash [197]
4 years ago
9

I have been given this question

Physics
1 answer:
iVinArrow [24]4 years ago
6 0
Frequency is no. of times this wave vibrates or complete its one cycle per unit time. As it vibrates 30000 times per second its frequency is 30000 per second or 30000 Hz [1 Hz = once per second].
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Order these sounds from loudest (1)
xz_007 [3.2K]

Answer:

1. Airplane

2. Crowd at sporting

3. Event

4. Rainfall

5. Whisper

7 0
3 years ago
Read 2 more answers
The area vector of a square loop of 5 turns of a conductor each with side length of 0.2 m carrying a current of 2 A is antiparal
lord [1]

Answer:

the magnitude and the direction of the total magnetic field is 0.4 Am²  antiparallel to the area vector

Explanation:

Given that:

The area vector of a square loop  has 5 numbers of turns i.e n = 5

each with side length = 0.2 m

Current I = 2 A

uniform magnetic field =  50.0 T

Now; the magnitude of the total magnetic field B is calculated as :

B = IA

where;

I = current

A = area ( n × l²)  

B = I ( n × l²)

B = 2 ×  5 ×  0.2²

B = 0.4 Am²

The direction of the magnetic moment is antiparallel to the area vector;

Hence ; the magnitude and the direction of the total magnetic field is 0.4 Am²  antiparallel to the area vector

3 0
3 years ago
A plane is flying due East at 57.0 m/s. However, there is a 13.0 m/s wind blowing towards the North. What would the diagram to f
inysia [295]
You can start this by setting up two vectors starting at the origin.

Vector 1 has coordinates of (-57,0) since in the east direction.
Vector 2 has coordinates of (0,13) because going north.

Starting from the origin, plot the two points, which will give you two sides of a triangle.
You can use pythagorean theorem to solve for the magnitude of the velocity. And you can find the angle by arctan(y/x)
Pythagorean would produce 58.46m/s 
5 0
3 years ago
What is the potential energy possessed by a rock of mass 4kg projected to a height of 2m (g=10m/s2)
Mumz [18]

Potential Energy = Mass * Gravitational Constant * Height

What We Don't Know: Potential Energy

What We Know:

Mass

Gravitational Constant (9.8 m/s)

Height

Ep = mgh

Ep = 4 * 9.8 * 2

Ep = 78.4 Joules

The Potential Energy of the Rock is 78.4 Joules, based on the given information! Hope this helps you!

5 0
3 years ago
2. Two charges at fixed locations produce an electric field as shown
vagabundo [1.1K]

Answer:

sum of the two forces as both point to the right is a force that points to the right,

Explanation:

The force on the cast load at point Y is given by

        F = q_y  E

force is a vector magnitude so its result is

        ∑ F = Fₐ + F_b

indicate that the charge at y is negative, we analyze the direction of the force created by each charge

Charge A

as the electric field is incoming the charge is negative and as the test charge is negative both repel each other, consequently the force points to the right

Charge B

in this case the electric field lines are salient, therefore the charge is positive, consequently the force on the charge at y is attractive and points to the right

the sum of the two forces as both point to the right is a force that points to the right, that is, in the direction of the charge located at B

3 0
3 years ago
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