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____ [38]
3 years ago
12

How can you use a magnet to induce a current?

Physics
2 answers:
Vikki [24]3 years ago
8 0
A coil of a wire with a current flowing through it becomes a magnet
Furkat [3]3 years ago
3 0
A coil of wire with a current flowing thru it becomes a magnet
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A shell is fired with a horizontal velocity in the positive x direction from the top of an 80 m high cliff. The shell strikes th
Sonbull [250]

Answer:

V = 331.59m/s

Explanation:

First we need to calculate the time taken for the shell fire to hit the ground using the equation of motion.

S = ut + 1/2at²

Given height of the cliff S = 80m

initial velocity u = 0m/s²

a = g = 9.81m/s²

Substitute

80 = 0+1/2(9.81)t²

80 = 4.905t²

t² = 80/4.905

t² = 16.31

t = √16.31

t = 4.04s

Next is to get the vertical velocity

Vy = u + gt

Vy = 0+(9.81)(4.04)

Vy = 39.6324

Also calculate the horizontal velocity

Vx = 1330/4.04

Vx = 329.21m/s

Find the magnitude of the velocity to calculate speed of the shell as it hits the ground.

V² = Vx²+Vy²

V² = 329.21²+39.63²

V² = 329.21²+39.63²

V² = 108,379.2241+1,570.5369

V² = 109,949.761

V = √ 109,949.761

V = 331.59m/s

Hence the speed of the shell as it hits the ground is 331.59m/s

7 0
3 years ago
How are mechanical waves and electromagnetic waves alike?
miss Akunina [59]

I got this answer from the internet

6 0
3 years ago
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The resistivity of a semiconductor can be modified by adding different amounts of impurities. A rod of semiconducting material o
zavuch27 [327]

Answer:

pp

Explanation:

7 0
3 years ago
A lamp marked 100w 250v is lit up for 10hours, costs 2I what is the cost of lighting the lamp ​
olga nikolaevna [1]

Answer:

2k

Explanation:

100W X 10h = 1000Wh = 1KWh thus cost is 2k

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2 years ago
Calculate the Force applied on a body of mass 100 KG Moving with the velocity 20 m/s so that it can be brought into rest in five
bearhunter [10]

Explanation:

v = u + at

0=20+a*5

a=-4

--------------

now,

f = ma

F=ma=100*-4=-400N

7 0
3 years ago
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