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Olin [163]
3 years ago
14

A 48-volt source is required to furnish 192 watts to a parallel circuit consisting of three resistors of equal value. What is th

e value of each resistor?
Physics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

36 Ω

Explanation:

Since the 3 resistors are connected in parallel.

The combined resistance of the resistor is

1/Rc = 1/R + 1/R + 1/R ...................... Equation 1

Where Rc = combined resistance of the three resistor, R1 = Resistance of each of the resistor

Rc = R/3 ....................... Equation 2

The formula of power is given as

P = V²/Rc

Rc = V²/P ................ Equation 3

Where V = Voltage, R =  Combined Resistance, P = power.

Given: V = 48 V, 192 W.

Substitute into equation 3

Rc = 48²/192

Rc = 12 Ω

From equation 2

Rc = R/3

R = 3Rc

Where Rc = 12 Ω

R = 3×12

R = 36 Ω

Hence the resistance on each resistor = 36 Ω

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olga nikolaevna [1]

Answer:

The number of calories needed is 6c.

Explanation:

The amount of energy Q needed to raise the temperature \Delta T of water of mass m is

Q = mC\Delta T

where C = 1cal/g\cdot C is the specific heat capacity of water.

Putting in numbers into equation (1), we get:

Q = (2g)(1)(3^oC )\\

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8 0
3 years ago
A 20kg bike accelerates at 10 m/s2. With what force was the person padeling?
Romashka-Z-Leto [24]
Formula:
F = ma
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Solution:
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3 years ago
Starting the moon's cycle with the new moon phase, what phase will it be in after about a week?
sergey [27]
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5 0
3 years ago
See the person on the right side of the front car. Six reference points could be used to show that the person is in / is NOT in
Rasek [7]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

1. According to person standing on ground ~

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2. According to The car ~

  • The person is not in motion

3. According to the Seat ~

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4. According to another person on ride ~

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5. According to the track ~

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6. According to the Sun ~

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I hope that's what you were looking for, goodluck for your assignment ~

7 0
2 years ago
PLEASE HELP ME WITH MY HOMEWORK!!!!!
IgorC [24]

Known :

l = 7 cm

w = 4 cm

Asked :

h = ...?

Answer :

V = B triangle × h (long)

35 = ½ × 4 × h × 7

35 = ½ × 28 × h

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h = 35 ÷ 14

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Sorry if I am wrong, I only study

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