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2 years ago

An older fire alarm has a wax block keeping the circuit open. When the heat from a fire melts the block, the

Physics

1 answer:

Olegator [25]2 years ago

8 0

The heat from the fire melting the wax helps close the circuit.

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What is the efficiency of a machine?

Julli [10]

Answer:

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work).

Explanation:

It is a measure of how well a machine reduces friction.

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2 years ago

Protons and neutrons in an atom are held together by _____.

marysya [2.9K]

Protons and neutrons in an atom are held together by a nuclear energy also called the strong force.

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3 years ago

What are the names of the 2 charged particles in an atom and what are their charges

Sholpan [36]

Answer:

Protons and electrons

Explanation:

The atoms are made up of protons, neutrons, and electrons.
The physical and chemical characteristics of an atom are determined by the number of these particle composition.
The protons present in the center of an atom called the nucleus is positively charged.
The neutrons are also located in the nucleus of an atom with no charge.
The electrons has a negative charge and it is placed around the nucleus having different shells and quantum state.
The charges of the protons and electrons are denoted by +q and -q. The quantization of these charges are +1, +2, ... and -1, -2, .... etc.

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2 years ago

You have to choose one of these Kpop members for the purge, or you can group them into three. Who do you choose, what are their

Burka [1]

Answer:

Wonho, Seonghwa, and Bangchan

Explanation:

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2 years ago

Read 2 more answers

How does an inclined plane affect the effort needed to move a load vertically?

VashaNatasha [74]

If we pull an object vertically upwards then we need to apply a force which is equal in the magnitude of the weight of the object

$F = mg$

now when we pull the same object upwards along an inclined plane with angle then we require a force which will balance the component of weight along the inclined

so it is given as

$F' = mgsin\theta$

so as if we compare the two forces we can say that since the value of sine is always less than 1 for an angle less than 90 degree

so in the 2nd case when we pull the object along the inclined plane it will require less effort

so correct answer is

<em>A. reduce effort</em>

5 0

2 years ago