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GuDViN [60]
3 years ago
5

What are some of the useful properties of current electricity

Physics
2 answers:
Nady [450]3 years ago
5 0
Conduction and heat
Hope I helped
Artist 52 [7]3 years ago
3 0
Conduction, convection and heat
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FrozenT [24]
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Great question!

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Why might political parties prefer closed primaries to open primaries
sweet [91]

In a closed primary, only voters registered with a given party can vote in that party's primary.

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Which theory was first proposed by Albert Einstein? A. the theory of special relativity B. the theory of universal gravitation C
balu736 [363]

A. the theory of special relativity

6 0
3 years ago
Read 2 more answers
A block of mass 57.1 kg rests on a slope having an angle of elevation of 28.3°. If pushing downhill on the block with a force ju
stira [4]

Answer:

The coefficient is 0.90

Explanation:

Drawing a diagram makes thing easier, we will assume that the acceleration tends to zero because it start barely moving.

-F_s+mg*sin(\theta)+F=0\\F_s=57.1kg*9.8m/s^2*sin(28.3)+177N\\F_s=442N\\F_s=\µ*N\\N=m*g*cos(\theta)\\N=57.1*9.8*cos(28.3)=493N\\\\\µ=\frac{442N}{493N}=0.90

3 0
3 years ago
If a 25 kg object is moving at a velocity of 10 m/s, the object has<br> energy. Calculate it.
Paul [167]

Answer: Your answer is 1250J

Explanation:

K E = 1/2 m v 2

The mass is  

m = 25 k g

The velocity is  v = 10 m s − 1

So,

K E = 1 /2 x25 x 10 2^2= 1250 J

pls mark brainiest answer  

4 0
2 years ago
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