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laiz [17]
3 years ago
12

What would happen to the apparent change in mass if the direction of the current is reversed?

Physics
1 answer:
pantera1 [17]3 years ago
8 0
When you reverse the direction of the current, the current loop generated by the magentic field is revered.
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A ball of mass m falls vertically, hits the floor with a speed ui , and rebounds with a speed u f . what is the magnitude of the
Sholpan [36]

Answer:

Change of momentum = M (Vf - (-Vi))   where V represents the scalar speeds of the ball or

I = M (ui + uf)  and I is the impulse ΔM V = I     Force = Change in Momentum

5 0
1 year ago
A 34.0 kg sled is accelerated by a constant force of 45.0 N from 2.00 m/s to 16.00 m/s. For how long was the force acting on the
goblinko [34]

Answer: 10.6 sec

Explanation:

Because I got it right on my quiz :D

also because you can use the impulse momentum formula, Ft=m(triangle)v

so basically u do 16m/s-2m/s=14m/s and thats your triangle v (change in velocity) then multiply 14 times the mass, which is 34. Thats 476, so now you have ft=476, and you know F, the force, so all you have to do is divide 476 by 45, and you get like 10.5777777 which rounds up to 10.6!

4 0
3 years ago
A step index fiber has a numerical aperture of NA = 0.1. The refractive index of its cladding is 1.465. What is the largest core
Vladimir [108]

Answer:

diameter = 9.951 × 10^{-6} m

Explanation:

given data

NA = 0.1

refractive index = 1.465

wavelength = 1.3 μm

to find out

What is the largest core diameter for which the fiber remains single-mode

solution

we know that for single mode v number is

V ≤ 2.405

and v = \frac{2*\pi *r}{ wavelength} NA

here r is radius    

so we can say

\frac{2*\pi *r}{ wavelength} NA    = 2.405

put here value

\frac{2*\pi *r}{1.3*10^{-6}} 0.1    = 2.405

solve it we get r

r = 4.975979 × x^{-6} m

so diameter is = 2  ×  4.975979 × 10^{-6} m

diameter = 9.951 × 10^{-6} m

3 0
3 years ago
Which is a derived unit? <br> a.) kilogram <br> b.) joule <br> c.) micrometer <br> d.) millimeter
Dovator [93]
Joule us a derived unit
5 0
3 years ago
Read 2 more answers
Can you think of a device or machine that transfers the motion of a hot gas to motion of an object?
tino4ka555 [31]

Answer:

Turbines in coal factories

Explanation:

Turbines in coal factories use steam power to move the turbine flaps and generate static electricity as energy output.

6 0
3 years ago
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