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Advocard [28]
3 years ago
8

What is the current in a series circuit with a resistance of 30 ohms and a potential difference of 120 volts?

Physics
1 answer:
mars1129 [50]3 years ago
7 0
0.25A....................
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How much heat Q H QH does a heat pump with a coefficient of performance of 2.10 2.10 deliver when supplied with 1.82 kJ 1.82 kJ
valina [46]

The operating coefficient or performance coefficient of a heat pump is the ratio between the heating or cooling provided and the electricity consumed. The higher coefficients are equivalent to lower operating costs. The coefficient can be greater than 1, because it is a percentage of the output: losses, other than the thermal efficiency ratio: input energy. Mathematically can be written as,

\text{Coefficient of performance} = \frac{\text{Heat extracted}}{\text{Electrical energy supplied}}

COP = \frac{Q}{E}\rightarrow Q =COP\times E

Replacing,

Q = 2.1\times 1.82kJ

Q = 3.822kJ

Therefore the heat is 3.822kJ

4 0
3 years ago
Object a has a mass of 20 g
Anarel [89]
And.. where is the rest of the question?
7 0
3 years ago
Which of these is a likely impact of stronger than normal trade winds on the eastern Pacific Ocean?
Bas_tet [7]

Answer:

Jet stream would be displaced southwards causing heavy rain and flooding.

Explanation:

The other options of the question were A) Jet stream would be displaced northwards causing drought. B) Jet stream would be displaced southwards causing drought. D) Jet stream would be displaced northwards causing heavy rain and flooding,

The statement that is a likely impact of stronger than normal trade winds in the Pacific Northwest to the United States is "Jet stream would be displaced southwards causing heavy rain and flooding."

We are talking about climate or weather terminology. In this case, we are referring to the "El Niño" (the Children) effect. Its presence affects the weather in North America. This phenomenon combines with the "La Niña) effect and it presents itself every two to seven years, ad they last from 8 to 12 months, affecting the weather conditions of the region.

3 0
3 years ago
Read 2 more answers
A farmers field , which are close to a stream has experienced a lot of runoff. One possible effect of the run off is that the st
Vladimir79 [104]

Answer:

This statement is false.

Explanation:

If  the farmers field is close to the stream, and has experienced a lot of runoff, the runoff will carry chemicals from the farm into the stream, which includes fertilizers among other chemicals. This runoff into the stream will not lead to a decrease in the level of fertilizers in the stream. Therefore, one of the effect of this cannot be a decrease in the level of fertilizers from the field.

6 0
3 years ago
The distance from Earth to the Sun is 1.0 _____.
natka813 [3]
<span>The distance from Earth to the Sun is 92.96 million miles, which is equal to 1 astronomical unit.

In short, Your Answer would be Option C

Hope this helps!</span>
5 0
4 years ago
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