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4 years ago

HELP PLEASE!! what will happen if you add a stronger battery to an electromagnet??

Physics

1 answer:

Gala2k [10]4 years ago

6 0

The electromagnetic force will be stronger since the electromagnet get it's force from the battery.

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An optical telescope is an instrument that collects and _____.

tresset_1 [31]

An optical telescope is an instrument that collects and enlarges objects from a distance. Hope this helps. Hope this helps. (∩︵∩)
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4 years ago

Un objeto de 0.5kg de masa se desplaza a lo largo de una trayectoria rectilínea con aceleración constante de 0.3m/s2. Si partió

den301095 [7]

Answer:

p = 1.2 kg-m/s

Explanation:

The question is, "An object of mass 0.5kg is moving along a rectilinear path with constant acceleration of 0.3m / s2. If it started from rest and the magnitude of its momentum in kg * m / s after 8s is".

Mass of the object, m = 0.5 kg

Acceleration of the object, a = 0.3 m/s²

We need to find the momentum after 8 seconds.

We know that,

$p=F\times t$

i.e.

p = mat

So,

$p=0.5\times 0.3\times 8\\\\p=1.2\ kg-m/s$

So, the momentum of the object is 1.2 kg-m/s.

6 0

3 years ago

How much work is done (by a battery, generator, or some other source of potential difference) in moving Avogadro's number of ele

konstantin123 [22]

Answer:

-1486 KJ

Explanation:

The work done by an electric field on a charged body is:

W = ΔV * q

where ΔV = change in voltage

q = total charge

The total charge of Avogadro's number of electrons is:

6.0221409 * 10^(23) * -1.6023 * 10^(-19) = -9.65 * 10^(4)

The change in voltage, ΔV, is:

9.20 - (6.90) = 15.4

Therefore, the work done is:

W = -9.65 * 10^(4) * 15.4 = -1.486 * 10^6 J = -1486 KJ

The negative sign means that the motion of the electrons is opposite the electrostatic force.

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3 years ago

A copper sphere was moving at 25 m/s when it hit another object. This caused all of the KE to be converted into thermal energy f

Verdich [7]

Answer:

$\Delta T = 0.81 ^oC$

Explanation:

As we know by energy conservation

All its kinetic energy will convert into thermal energy to raise its temperature

$\frac{1}{2}mv^2 = ms\Delta T$

now divide both sides by mass of the object

$\frac{1}{2}v^2 = s\Delta T$

so change in temperature is given as

$\Delta T = \frac{v^2}{2s}$

$\Delta T = \frac{25^2}{2\times 387}$

$\Delta T = 0.81^oC$

3 0

3 years ago

A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting posit

JulsSmile [24]

Answer:

Zero

Explanation:

Average velocity is given by:

$v=\frac{d}{t}$

where

d is the displacement of the trip

t is the time it takes for the trip to complete

In this problem, the net displacement of the swimmer is zero. In fact:

- First, he swims 30.0 m in the north direction

- Then, he travels back (-30.0 m) in the south direction, to the starting position

Since the final position is equal to the starting position, the displacement is zero:

d = 0

And therefore, the average velocity is also zero.

8 0

4 years ago

HELP PLEASE!! what will happen if you add a stronger battery to an electromagnet?? ​

HELP PLEASE!! what will happen if you add a stronger battery to an electromagnet??