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kozerog [31]
3 years ago
9

Sully uses a battery and a coil of wire to create an electromagnet. Using the same materials, if he wants to increase the streng

th of his electromagnet, he must _____ the number of loops in the coil of wire along its length. If he uses an additional battery, the strength of his electromagnet will _______.
first blank has options: increase, decrease, no change

second blank has the same options
Physics
2 answers:
fenix001 [56]3 years ago
6 0

Answer : The correct answer for both the fill in the blank is, increases.

Explanation :

Formula used :

1) B=\mu_o\times \frac{N\times I}{L}

B = strength of magnetic filed

N = Number of loops

I = current in the wire

\mu_o =  magnetic permeability

B\propto N

The more the number of loops in the solenoid more will the strength of three magnetic fields.

2) Also according to Ohm's law:

Voltage is directly proportional to current:

V\propto I

With increase in voltage the the current will increase which in return increase the magnetic field in the solenoid.

So, the correct answer for both the fill in the blank is, increases.

Rudiy273 years ago
3 0
Answer is increase for both.
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Object distances are always negative according to the Cartesian sign convention
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The sport with the fastest moving ball is jai alai, where measured speeds can be 286 km/h. If a professional jai alai player fac
cricket20 [7]

Answer:

d= 794.4 cmExplanation:

Given that

Speed ,V= 286 km/h

=286\times \dfrac{1000}{3600}\ m/s

V=79.44 m/s

Given that time ,t= 100 ms

t= 0.1 s

We know that ( if acceleration is zero)

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d= V t

Now by putting the values in the above equation

d = 79.44 x 0.1 m

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5 0
3 years ago
b. What would the momentum be if the mass of the bowling ball were doubled and its velocity still was 3 m/s?​
umka2103 [35]

Answer:

Twice.

Explanation:

The momentum of an object is given by :

p = mv

Where

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New momentum,

p'=m'v'

p'=2m × v

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or

p'=2p

So, the new momentum becomes twice the initial momentum.

6 0
2 years ago
A rotating viscometer consists of two concentric cylinders –an inner cylinder of radius Rirotating at angular velocity (rotation
RSB [31]

Answer:

b)  the result we got can be termed approximation because we are neglecting the shear stress acting on the two ends of the cylinder. Here we have considered only the share stress acting on the curved surface area only.

Explanation:

check attachment for solution to A

4 0
3 years ago
This version of Einstein’s equation is often used directly to find what value?
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A. THE ENERGY THAT IS RELEASED IN A NUCLEAR REACTION.

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