If the mass of the book is 50 sliding with acceleration 1.2 m/s ^ 2 then the friction force is

Adult men have an average height of 69.0 inches with standard deviation of 2.8 inches fins the night of a man with a z-score of

ANTONII [103]

What do you mean I’m confused

7 0

2 years ago

A transformer connected to a 120-v(rms) at line is to supply 13,000V(rms) for a neon sign.

lyudmila [28]

Answer:

(a) 108

(b) 110.500 kW

(c) 920.84 A

Solution:

As per the question:

Voltage at primary, $V_{p} = 120\ V$ (rms voltage)

Voltage at secondary, $V_{s} = 13000\ V$ (rms voltage)

Current in the secondary, $I_{s} = 8.50\ mA$

Now,

(a) The ratio of secondary to primary turns is given by the relation:

$\frac{N_{s}}{N_{p}} = \frac{V_{s}}{V_{s}}$

where

$N_{p}$ = No. of turns in primary

$N_{s}$ = No. of turns in secondary

$\frac{N_{s}}{N_{p}} = \frac{13000}{120}$ ≈ 108

(b) The power supplied to the line is given by:

Power, P = $V_{s}I_{s} = 13000\times 8.50 = 110.500\ kW$

(c) The current rating that the fuse should have is given by:

$\frac{V_{s}}{V_{p}} = \frac{I_{p}}{I_{s}}$

$\frac{13000}{120} = \frac{I_{p}}{8.50}$

$I_{p} = \frac{13000}{120}\times 8.50 = 920.84\ A$

6 0

3 years ago

If the force acting on an object is multiplied by _____, the product is called work

Aneli [31]

The distance the object travels

5 0

3 years ago

Do different fruits and vegetables sink or swim

Anni [7]

Some fruits and vegetables sink in water and some float in water. None swim.

3 0

3 years ago

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Find the angle between two equal forces (p) when their resultant is equal to (p)<br>

Alexus [3.1K]

Answer:

60°

Explanation:

It will be equilateral triangle, you can prove with the cosine theorem.

1)P^2=P^2+P^2 - 2×P×P× cos A

2) cos A= P^2 / 2× P^2 = 1/2

cos A = 1/2

A = 60°

If you wrote this question right,it will be solved like this :)

4 0

2 years ago

Read 2 more answers