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butalik [34]
3 years ago
8

How much current is in a circuit that includes a 9-volt battery with a resistance of 3

Physics
1 answer:
Darya [45]3 years ago
7 0
Just remember
Voltage = current times resistance

current = voltage over resistance

Current = 9/3 = 3
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3 years ago
a force is applied to a box of 10.0 kg for 4.0 s. the box goes from rest to 25 m/s in that time. What is the magnitude of that f
Paul [167]

Given:

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t(time of impact)=4 sec

u(initial velocity)=0.(as the body is initially at rest).

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7 0
3 years ago
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considere que o calor específico de um material presente nas cinzas seja c=0,8j/gc. Supondo que esse material entre na turbina a
drek231 [11]

Answer:

3120J

Explanation:

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Unknown:

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Solution:

To find the energy given to the mass, let us simply use the expression below:

          H   =   m   c   ΔT

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c is the specific heat capacity

ΔT is the change in temperature

Input the variables;

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7 0
3 years ago
Mechanical energy is conserved in the presence of which of the following types of forces?magnetic
Tju [1.3M]
<h2>Answer: electrostatic and gravitational force </h2><h2 />

Mechanical energy remains constant (conserved) if only <u>conservative forces</u> act on the particles.  

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According to this, mechanical energy is conserved in the presence of electrostatic and gravitational forces.

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3 years ago
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