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Helen [10]
3 years ago
15

In EXACTLY 13 words explain how global warming happens on Earth.

Physics
1 answer:
inysia [295]3 years ago
8 0

By pollution rotting the air and making is worse for us to breath

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A transformer consists of 290 primary windings and 824 secondary windings. Part A: If the potential difference across the primar
jasenka [17]

Answer:

Part 1) Voltage in secondary windings is 61.08 Volts

Part 2) Current in secondary windings is 0.53 Amperes

Explanation:

The potential developed in the primary and secondary winding of a transformer are related as

\frac{N_{p}}{N_{s}}=\frac{V_{p}}{V_{s}}

where

Np no of turns in primary coil

Ns no of turns in secondary coil

Vp Voltage of turns in primary coil

Vs Voltage of turns in secondary coil

Applying values in the formula we get

\frac{290}{824}=\frac{21.5}{V_{s}}\\\\\therefore V_{s}=21.5\times \frac{824}{290}=61.08V

Part 2)

Using Ohm's law the current is given by

I=\frac{V_{s}}{R}\\\\I=\frac{61.089}{115}=0.53A

5 0
3 years ago
A metal ball has a mass of 2.05 kg and a volume of 6.8 cm. What is its density? Remember
kogti [31]

Answer:

the density is 0.301 :)

7 0
2 years ago
What is the acceleration that earth experiences due to your gravitational pull?
djverab [1.8K]

Answer:

The acceleration that earth experiences due to  gravitational pull is = 9.81  \frac{m}{s^{2} }.

Explanation:

The acceleration that earth experiences due to  gravitational pull is called the acceleration due to gravity. its value is 9.81 and its unit is \frac{m}{s^{2} }.

When the object move upwards than in that case the earth gravitational force pulls down the body.

The formula of force due to gravity on the body is given as

F = mg

where g = acceleration due to gravity.

Due to this acceleration the body falls upon the surface of the earth.

4 0
3 years ago
A man paddles a canoe in a long, straight section of a river. The canoe moves downstream with constant speed 5 m/s relative to t
nikklg [1K]

Answer:

Explanation:

We shall consider all movement with respect to water assuming that river is at rest or motionless .

speed of canoe = 5 m /s

in five minutes , distance between hat and canoe = 5 x 60 x 5

1500 m

This distance will be covered by man in return journey . In this case his speed is 5 m /s again considering river constant .

So this will be covered at 5 m /s

time taken = 1500 / 5 = 300 s

= 5 minutes .

so it will take 5 minutes to row back to reclaim his hat .

7 0
3 years ago
A large truck and a small car have a head-on collision. Which scenario is true?
solmaris [256]
B. is the answer dude
7 0
3 years ago
Read 2 more answers
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