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REY [17]
2 years ago
8

Two 1.50-V batteries-with their positive terminals in the same direction-are inserted in series into a flashlight. One battery h

as an internal resistance of 0.255ω , and the other has an internal resistance of 0.15ω . When the switch is closed, the bulb carries a current of 600mA .(a) What is the bulb's resistance?
Physics
1 answer:
DIA [1.3K]2 years ago
8 0

Based on the voltage of the batteries and the internal resistance, the bulb's resistance is 4.595 Ω

<h3>What is the resistance?</h3>

First, find the total emf of the circuit:

= 2 x 1.5V

= 3.0V

The internal resistance is:

= 0.255 + 0.15

= 0.405 Ω

The resistance in the bulb is:

= 3.0 / 0.600 - 0.405

= 4.595 Ω

Find out more on resistance at brainly.com/question/24974191

#SPJ4

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The answer is A.


p=m/v
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Answer:

1. The density of the cube is 1.03 g/mL.

2. Dish soap

Explanation:

1. Determination of the density of the cube.

From the question given above, the following data were obtained:

Mass (m) of cube = 21.7 g

Volume (V) of cube = 21 mL

Density (D) of cube =?

The density of a substance is simply defined as the mass of the substance per unit volume of the substance. Thus, density can be expressed mathematically as:

Density (D) = mass (m) / volume (V)

D = m / V

With the above formula, we can obtain the density of the cube as follow:

Mass (m) of cube = 21.7 g

Volume (V) of cube = 21 mL

Density (D) of cube =?

D = m / V

D = 21.7 / 21

D = 1.03 g/mL

Thus, the density of the cube is 1.03 g/mL.

2. Determination of the layer of density the cube will settle in.

From the question given above,

Subtance >>>>>>>> Density

Vegetable oil >>>>> 0.91 g/mL

Grape juice >>>>>> 0.97 m/L

Water >>>>>>>>>>> 1 g/mL

Dish soap >>>>>>>> 1.03 g/mL

Maple syrup >>>>>> 1.37 g/mL

Comparing the density of the cube (i.e 1.03 g/mL) with those in the table able, we can conclude that the cube will settle in the DISH SOAP layer since they both have the same density.

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3 years ago
is it possible to breed a black haired long tailed retriever? If so, what percentage is possible? PLEASE answer the corrects ans
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Answer: it can be considered a genetic mutation with a history of a Golden Retriever in their blood but it is very rare. and there our some black retrievers you can buy too. i hope i helped

Explanation:

6 0
2 years ago
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Serhud [2]
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3 years ago
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A 15-kg block at rest on a horizontal frictionless surface is attached to a very light ideal spring of force constant 450 N/m. T
den301095 [7]

Answer:

0.266 m

Explanation:

Assuming the lump of patty is 3 Kg then applying the principal of conservation of linear momentum,

P= mv where p is momentum, m is mass and v is the speed of an object. In this case

m_pv_p=v_c(m_p+m_b) where sunscripts p and b represent putty and block respectively, c is common velocity.

Substituting the given values then

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The resultant kinetic energy is transferred to spring hence we apply the law of conservation of energy

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