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lesya [120]
3 years ago
7

help please!! what is a good scientific investigation topic that is easy? i have to do one but i don't have much time...

Physics
2 answers:
Reptile [31]3 years ago
4 0
Astronomy Which stars can you use for navigation in different parts of the world?
hope dat topic helps
Nikolay [14]3 years ago
3 0
Does water or coffee make a plant grow faster
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A very long, straight horizontal wire carries a current such that 8.15×1018 electrons per second pass any given point going from
Maksim231197 [3]

Magnetic field 'B' at a distance 'r' from an substantially large conductor carrying current 'i' = (2x10^ -7)('i' ) / r 

Magnetic field 'B' beyond the wire= (2x10^ -7)(8.15x10^18x1.6x10^ - 19 ) /0.046 =5.7 x10^ -12 tesla 

As electrons move from west to east, the conventional current is from east to west. 

By means of Maxwell's right handed corkscrew rule, the way of magnetic field is from south to north.

3 0
3 years ago
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Why is it so important that you take care of your nervous system?
Ierofanga [76]

Answer:

The nervous system handles the stress response, which, if overworked, can eventually lead to diseases ranging from high blood pressure to diabetes.

Explanation:

hope I helped

3 0
3 years ago
The standard unit of radiation related to biologic hazard is the:
marin [14]
Im positive that the answer is b
4 0
4 years ago
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77. The first law of motion applies to
Mama L [17]
In the first law, an object will not change its motion unless a force acts on it. So I think the answer is A. Only objects that are moving.
8 0
3 years ago
Objects with masses of 181 kg and 712 kg are separated by 0.442 m. A 72.6 kg mass is placed midway between them. 0.442 m b b 181
Semmy [17]

Answer:

The Force exerted by the two objects will be same and 4,401,189.49  × 10−11 N

Explanation:

Let m1 be the mass of the first object and m2 be the mass of the second object and the distance between them be d. Then

m1= 181kg

m2= 712 kg

d= 0.442 m

G is the gravitational Constant

According to Newtons Law Gravitational Force is given by

F=G m1 m2 /d²

F= 6.672 × 10−11 ×181×712/(0.442)²

F=  859,576.24  × 10−11/0.195364

F=  4,401,189.49  × 10−11 N

The Force exerted by the two masses on the third mass will be same and 4,401,189.49  × 10−11 N

5 0
3 years ago
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