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ivann1987 [24]
3 years ago
6

In a motor the consistent turning of an electromagnetic in the same direction causes electrical energy to be transformed into me

chanical energy. What part of the motor cause this motion?
A.The loop of wire
B.The permanent magnets
C.The power source
D.The communicator
Help
Physics
2 answers:
Nikitich [7]3 years ago
8 0

Answer:

a

Explanation:

the loop of wire

solong [7]3 years ago
3 0

Answer:

Explanation:

The communicator

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false

Explanation:

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A dynamite blast at a quarry launches a rock straight upward, and 1.7 s later it is rising at a rate of 17 m/s. Assuming air res
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Answer:

(a) v_0= 34m/s

(b) v=14m/s

Explanation:

We can derive the initial speed of the rock from the equation of the speed in function of the time:

v=v_0-gt\\\\\implies v_0=v+gt

Using the given values for the speed at time t=1.7s, we get:

v_0=17m/s+(9.8m/s^{2})(1.7s)=34m/s

In words, the speed of the rock at launch is 34m/s (a).

Next, we use this to calculate the speed at t=4.9s:

v=v_0-gt\\\\v= 34m/s-(9.8m/s^{2})(4.9s)=-14m/s

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3 years ago
Why we have leap year?
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Answer:February 29 is a date that usually occurs every four years, and is called leap day. This day is added to the calendar in leap years as a corrective measure, because the Earth does not orbit the sun in precisely 365 days.

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class 7 Physics answera plot measuring 2 km in length and 1 by 2 km in breadth has area of how many hectare ​
motikmotik

Answer:

Area of plot in hectare = 100 hectare

Explanation:

Given;

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Width of plot = 1/2 km = 0.5 km

Find:

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Computation:

Area of plot = Length x width

Area of plot = 2 x 0.5

Area of plot = 1 square kilometer

1 square kilometer = 100 hectare

Area of plot in hectare = 1 x 100

Area of plot in hectare = 100 hectare

7 0
3 years ago
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