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Andrew [12]
4 years ago
14

Give three examples of different forms of energy used in everyday life. Explain where the energy goes to show that it is transfo

rmed, not destroyed.
Physics
1 answer:
kifflom [539]4 years ago
3 0
The three Examples are following,
1. The Mechanical energy used in our houses drives fans, clocks and motors.
2. The Heat energy is used for cooking food in kitchen, in heaters and in blankets for warmth.
3. The Electrical energy used in our homes that drives washing machines, microwave ovens and the computers.

That's all, I knew hope it helps.
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Given that the efficiency of heating your room is roughly 35%, what mass of natural gas is actually necessary to heat your room
Mrac [35]

Answer:

Mass of natural gas needed to heat the room is 350,000BTUs

Explanation:

The heating efficiency of a furnace is never 100% because not all energy is released and not all heat is available to heat the place. A lesser efficiency requires more consumption of fuel. Heating values are used for heating fuels in order to calculate the mass of fuel needed.

The heating value of natural gas is 1,000,000BTUs

Therefore the formular for calculating mass of natural gas needed= Heating value of natural gas×efficiency.

Mass=1,000,000×0.35

Mass=350,000BTUs

3 0
3 years ago
A concave mirror is used to ______ ( converge, diverge) light and a convex mirror is used to _____( diverge or converge )
Colt1911 [192]

Answer:

converge, diverge

Explanation:

4 0
3 years ago
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In what part of the Milky Way galaxy are the stars packed closest together?
valentina_108 [34]

Answer: the nucleus

Explanation: The central nucleus is the oldest and most densely packed part of the milky way.

6 0
3 years ago
Object A has initial momentum p in the forward direction, but loses momentum at a rate of 0.35 kg·m/s2 until it stops moving. Ac
aliina [53]

Answer: a. net force is acting on object A in the same direction of its motion.

Explanation:

The second law of Newton states that the acceleration of a particular object is dependent on two main things which are the mass and force. According to the law, the acceleration of the object will be directly related to the net force while the acceleration is also relates inversely to the mass.

Therefore, based on the information given in the question, a force is acting on object A in the same direction of its motion.

8 0
3 years ago
Technician A states that a reading of 250 mv from the O2 indicates a rich exhaust. Technician B states that when the PCM receive
Pachacha [2.7K]

Answer:

Technician B is correct

Explanation:

An oxygen sensor will generate about 1.0 volts when the fuel mixture is rich and there is little unburned oxygen in the exhaust. When the mixture is lean, the sensor's output voltage will drop down to about 0.1 volts.

An o2 sensor cannot accurately measure how rich or how well an exhaust system is.

Therefore, Technician B is correct.

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3 years ago
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