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3 years ago

What is the name for potential difference that causes current to flow?

Physics

2 answers:

Digiron [165]3 years ago

3 0

Answer:

the answer is C i didnt mean to put b lol

Explanation:

Vera_Pavlovna [14]3 years ago

3 0

Answer:

Explanation:

on edge

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A force is applied to the rim of a disk that can rotate like a merry-go-round, so as to change its angular velocity. Its initial

frutty [35]

Answer:

The work done by the torque is the same in each case.

Explanation:

Work-Energy Theorem can be used to calculate the work done by the torque in each case.

$W = \Delta K\\W = K_2 - K_1 = \frac{1}{2}I\omega_2^2 - \frac{1}{2}I\omega_1^2\\$

Let's apply this theorem to each case:

$W_a = \frac{1}{2}I(5)^2 - \frac{1}{2}I(-2)^2 = \frac{1}{2}I(21)\\W_b = \frac{1}{2}I(5)^2 - \frac{1}{2}I(2)^2 = \frac{1}{2}I(21)\\W_c = \frac{1}{2}I(-5)^2 - \frac{1}{2}I(-2)^2 = \frac{1}{2}I(21)\\W_d = \frac{1}{2}I(-5)^2 - \frac{1}{2}I(2)^2 = \frac{1}{2}I(21)$

As can be seen from the results, in each case the work done by the torque is the same.

8 0

3 years ago

If a material is ductile, it is most likely a ____________ . Question 24 options: A. Metalloid B. Noble Gas C. Non-Metal D. Meta

quester [9]

Answer: Option (A) is the correct answer.

Explanation:

It is known that metals are malleable and ductile. Whereas non-metals are neither malleable nor ductile.

On the other hand, metalloids are the elements which contain properties similar to both metals and non-metals.

Therefore, if a material is ductile, it is most likely a metalloid because it is not necessary that ductility is a property shown by metals only.

Wherease like non-metals, noble gases are also neither malleable nor ductile.

8 0

3 years ago

Read 2 more answers

tom does not reallt want to give away blue marbles and would like to change the probability that he chooses a blue marble to one

Llana [10]

We don't know how many of ANY color are in the bag right now, so there's no way to calculate an answer.

What Tom has to do is make sure that the number of marbles that are NOT blue is NINE TIMES the number of blue ones in the bag.

4 0

3 years ago

Four identical metallic objects carry the following charges 1.82 6.65 4.80 and 9.30 C The objects are brought simultaneously int

GuDViN [60]

Answer:

a) 5.64 C

b) 3.5*10¹⁹ protons

Explanation:

Since the four metallic objects are identical, and total charge must be conserved, this means that after brought simultaneously into contact so that each touches the others, once separated, total charge must be the same than before being brought in contact.
But due they are identical, after charges were able to transfer freely between them, the four objects must have the same final charge, i.e. the fourth part of the total charge, as follows:

$Q_{n} = \frac{Q_{tot}}{4} = \frac{22.57C}{4} = 5.64 C (1)$

This charge will be divided between n protons, since the charge is positive.
Since each proton carries a charge equal to the elementary charge e, which value is 1.6*10⁻¹⁹ C, we can find the number of protons in excess, doing the following calculation:
$n_{p} =\frac{Q_{n}}{e} = \frac{5.64C}{1.6e-19C} = 3.5 e19 C (2)$

7 0

3 years ago

In a lab, the mass of object A is 2.5 kg. Object A weighs:

dangina [55]

Answer:

25N

Explanation:

Assuming the lab is on earth:

w = mg = 2.5 (9.81) = 25N

8 0

3 years ago