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3 years ago

How much work is done by a a 500watt blender that takes 180 seconds to crush ice

Physics

1 answer:

weqwewe [10]3 years ago

6 0

Answer:

Explanation:

<u>Given :-</u>

Power = 500 Watts

Time Taken = 180 seconds

Work Done

<u>Formula to be used :-</u>

Power = Work Done / Time Taken

Work Done = Power x Time Taken

<u>Inputting the values :-</u>

= 500 W x 180 seconds

= 90,000 J

= <u>9 x 10⁴ J</u>

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A circular loop of radius r carries a current i. at what distance along the axis of the loop is the magnetic field one-half its

lana [24]

At r = 0.766 R the magnetic field intensity will be half of its value at the center of the current carrying loop.

We have a circular loop of radius ' r ' carrying current ' i '.

We have to find at what distance along the axis of the loop is the magnetic field one-half its value at the center of the loop.

<h3>What is the formula to calculate the Magnetic field intensity due to a current carrying circular loop at a point on its axis?</h3>

The formula to calculate the magnetic field intensity due to a current carrying ( i ) circular loop of radius ' R ' at a distance ' x ' on its axis is given by -

$B(x) = \frac{\mu_{o} iR^{2} }{2(x^{2} +R^{2})^{\frac{3}{2} } }$

Now, for magnetic field intensity at the center of the loop can calculated by putting x = 0 in the above equation. On solving, we get -

$B(0) = \frac{\mu_{o} i}{2R}$

Let us assume that the distance at which the magnetic field intensity is one-half its value at the center of the loop be ' r '. Then -

$\frac{\mu_{o} iR^{2} }{2(r^{2} +R^{2})^{\frac{3}{2} } } = \frac{1}{2} \frac{\mu_{o}i }{2R}$

$2R^{3} = (r^{2} +R^{2} )^{\frac{3}{2} }$

$4R^{6} = (r^{2} +R^{2} )^{3}$

$r^{2} =0.587R^{2}$

r = 0.766R

Hence, at r = 0.766 R - the magnetic field intensity will be half of its value at the center of the current carrying loop.

To solve more questions on magnetic field intensity, visit the link below-

brainly.com/question/15553675

#SPJ4

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2 years ago

By newton third law of motion, we know that if a rocket ship pushes down on the ground, the ground will push back up on the rock

Furkat [3]

We don't know that at all. The 3rd law says that the REaction is opposite and EQUAL to the action. We don't know where that "twice as much" comes from.

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4 years ago

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lora16 [44]

The tension in the string and the acceleration must be equal for both masses. (See the free body diagrams)

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3 years ago

Please choose all that describe a series circuit.

aivan3 [116]

Answer:

Correct Answer

4,5,6,7

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3 years ago

The diver on the diving board is 10 meters high and has a mass of 0.050kg, what is his GPE?

sveta [45]

Answer:

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 10 × 9.8 × 0.05

We have the final answer as

Hope this helps you

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3 years ago