The period of 440 hertz sounds wave is how many second

Answers

Answer 1

Answer: The period of any wave is the reciprocal of its frequency ...
' 1 ' divided by the frequency.

Period = (1) / (440 per second)

= 0.00227... second (rounded) .

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Point m is located a distance 2d from the midpoint between the two wires. find the magnitude of the magnetic field b1m created at point m by wire 1.

Answers

Note: The diagram referred to in the question is attached here as a file.

Answer:

The magnitude of the magnetic field is $B = (0.071 \mu I)/(d)$

Explanation:

The magnetic field can be determined by the relationship:

$B = (\mu I)/(2\pi R)$ ...............(1)

Were I is the current flowing through the wires

The distance R from point 1 to m is calculated using the pythagora's theorem

$R = \sqrt{d^(2) + (2d)^(2) }$

$R = \sqrt{5d^(2) } \nR = d√(5)$

Substituting R into equation (1)

$B = (\mu I)/(2\pi d√(5) )$

$B = (0.071 \mu I)/(d)$

Use the formula for the magnetic field created by a long, straight, current-carrying wire (B = μ0I/2π(2d)) to find the magnitude of the magnetic field at point M created by wire 1

To find the magnitude of the magnetic field B1m created at point M by wire 1, we can use the Biot-Savart law. The formula for the magnetic field produced by a straight wire at a distance r from the wire is given by:

B = (μ₀ * I) / (2π * r)

Where:

- B is the magnetic field.

- μ₀ is the permeability of free space, which is a constant approximately equal to 4π x $10^{(-7)$ T·m/A.

- I is the current flowing through the wire.

- r is the distance from the wire to the point where you want to calculate the magnetic field.

In your case, the distance from wire 1 to point M is 2d. Therefore, we can calculate the magnetic field B1m due to wire 1 at point M as follows:

B1m = (μ₀ * I1) / (2π * (2d))

Now, we need to consider the direction of the magnetic field. Since point M is located equidistant between two wires, and wire 1 is closer to point M, the magnetic field created by wire 1 at point M will point towards or away from the wire, depending on the direction of the current in wire 1.

If the current in wire 1 is in the same direction as the vector from wire 1 to point M, the magnetic field will point away from wire 1. If the current in wire 1 is in the opposite direction, the magnetic field will point towards wire 1.

In both cases, the magnitude of the magnetic field B1m due to wire 1 at point M is given by the formula mentioned earlier:

B1m = (μ₀ * I1) / (2π * (2d))

This formula gives you the magnitude of the magnetic field at point M due to wire 1. The direction of the field depends on the direction of the current in wire 1 relative to the vector from wire 1 to point M.

Learn more about Magnetic Field here:

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A substance that accelerates any chemical reaction but is not consumed in the reaction is a _____. catalyst
buffer
substrate

Answers

A. Catalyst. ---------------

A. Catalyst. ---------

The radius of Venus is 3760.4 miles. What is the approximate surface area of Venus, to the nearest whole number?

Answers

The answer would be 177696122.85099155 (this is without rounding off to the nearest whole number). If rounded off to the nearest whole number, then the answer is 177,696, 123 miles. I got to this answer through solving for the surface area of a sphere (since Venus is one) using the radius.

Send helpI have to do test corrections but I have no idea what the speed vs time graph should look like

Answers

Answer:

Explanation:

at the same instant means in the same moment, same time thus A and B share the same starting time which is t=0

A star's apparent magnitude is most closely related to which of the following? Select all that apply.a. radius.
b. luminosity.
c. distance from Earth.
d. absolute magnitude. E. surface temperature.

Answers

Answer:

Luminosity

Explanation:

The apparent magnitude is a measure of the star's apparent luminosity, the apparent luminosity is directly related to the star's apparent magnitude.

The star's luminosity is the measure of the star's brightness and this diminishes with distance, the luminosity of a star also depends on the size of the star, this means that a star's magnitude and luminosity are directly related.

If you want the "most", then you can't have more than one.

A star's apparent magnitude is determined by both its intrinsic luminosity
and its distance from us.

In the mass-energy equivalence equation, c stands for _________.A. mass
B. energy
C. charge
D. the speed of light

Answers

Correct answer is D.

The famous mass-energy equivalence equation is given by Einstein. It states that mass is concentrated energy. The equivalence is expressed as, E=mc². E stands for energy equivalent to the mass m and c is the speed of light.

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