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Galina-37 [17]
3 years ago
13

The amperage changes on an electrical heater with a rise of temperature because

Physics
1 answer:
Nostrana [21]3 years ago
6 0
The electrical free path of electron is disturbed with vibrations not normal to normal / room temperature  because the electrical heater is agitating the conductor material. this causes the electrons to vibrate more creating more resistance to the flow.
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A car with the mass of '800 kg is moving at a velocity of 34 m/s. What is 10 points
klio [65]

Answer:462400joules

Explanation:

Mass=m=800kg velocity=v=34m/s

Kinetic energy=(m x v^2)/2

Kinetic energy =(800x34^2)/2

Kinetic energy =(800x34x34)/2

kinetic energy =924800/2

Kinetic energy =462400joules

7 0
3 years ago
Describe how an adult can teach a child to become a racist or bigot using positive reinforcement and negative punishment. Make s
tatiyna

Answer:

by raising them in an environment in wich it is common and giving false information about other races to install bad stereo types and distrust in the child who will grow up to not know any better do to the dumb ignorant parent raised the same way

Explanation:

?????? thats all i got im not a politician BLM

6 0
4 years ago
5.l Is it possible to slow light to almost zero miles/second? What machine would benefit from slowing light's
Tpy6a [65]

Answer:

1 answer : The speed of light is normally about 186,000 miles per second, or fast enough to go around the world seven times in the wink of eye. Scientists succeeded in slowing it down to 38 mph. They did this by shooting a laser through extremely cold sodium atoms, which worked like “optical molasses” to slow the light down.

Explanation:

3 0
3 years ago
You are drinking from a standard (10 oz) coffee cup when a fly starts buzzing around your hands. After finishing your beverage,
butalik [34]
55 is what I would say if its a regular cup..



5 0
4 years ago
Sue and Jenny kick a soccer ball at exactly the same time. Sue’s foot exerts a force of 49.9 N to the north. Jenny’s foot exerts
vovikov84 [41]

Answer:

Resultant force will be 123.57 N

Explanation:

We have given that force in north direction F_N=49.9N and force in east direction F_E=113N which is clearly shown in bellow figure

We have to find the resultant force

Resultant force is given by F_R=\sqrt{F_N^2+F_E^2}=\sqrt{49.9^2+113^2}=123.527N

So the resultant force will be 123.527 N

5 0
4 years ago
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