Ask question

Ask question

All categories

3 years ago

5

A transformer consists of 175 primary windings and 704 secondary windings. The emf of the primary coil is 28.0 V. What is the em

f across the secondary coil?
A. 56.0 V
B. 98.7 V
C. 189 V
D. 113 V

1 answer:

qwelly [4]3 years ago

5 0

Answer:

D. 113 v

if you need more help prior to this test let me know

Explanation:

You might be interested in

The battleship and enemy ships 1 and 2 lie along a straight line. Neglect air friction. battleship 1 2 Consider the motion of th

DaniilM [7]

Answer:

$\frac{t_1}{t_2} = \frac{sin\theta_1}{sin\theta_2}$

Explanation:

The vertical component of the initial velocities are

$v_v = v_0sin\theta$

If we ignore air resistance, and let g = -9.81 m/s2. The the time it takes for the projectiles to travel, vertically speaking, can be calculated in the following motion equation

$v_vt - gt^2/2 = s = 0$

$t(v_v - gt/2) = 0$

$v_v - gt/2 = 0$

$t = 2v_v/g = 2v_0sin\theta/g$

So the ratio of the times of the flights is

$t_1 / t_2 = \frac{2v_0sin\theta_1/g}{2v_0sin\theta_2/g} = \frac{sin\theta_1}{sin\theta_2}$

8 0

2 years ago

A piano string having a mass per unit length of 5.00 g/m is under a tension of 1350 N. Determine the speed of transverse waves i

padilas [110]

Answer:

The speed of transverse waves in this string is 519.61 m/s.

Explanation:

Given that,

Mass per unit length = 5.00 g/m

Tension = 1350 N

We need to calculate the speed of transverse waves in this string

Using formula of speed of the transverse waves

$v=\sqrt{\dfrac{T}{\mu}}$

Where, $\mu$ = mass per unit length

T = tension

Put the value into the formula

$v = \sqrt{\dfrac{1350}{5.00\times10^{-3}}}$

$v =519.61\ m/s$

Hence, The speed of transverse waves in this string is 519.61 m/s.

6 0

3 years ago

A banana peel has lots of friction.<br> True or False

olga_2 [115]

Answer:

False

Explanation:

I learned it the hard way trust me T^T

3 0

2 years ago

A _______ property of gasoline is that it will _______ in air.

Misha Larkins [42]

A chemical property of gasoline is that it will burn in air. Gasoline is a substance that is used to power automobiles. Gasoline will oxidize in air which means that it reacts with oxygen in air. Hope this answers the question. Have a nice day.

8 0

3 years ago

Read 2 more answers

Domains blank and blank are made up of prokaryotes

ankoles [38]

<span>Archaebacteria and Eubacteria
hope it helps

</span>

3 0

3 years ago