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KengaRu [80]
3 years ago
6

The radio waves of a particular AM radio station vibrate 680,000 times per second. What is the wavelength of the wave?

Physics
1 answer:
lesya [120]3 years ago
4 0

Answer:don’t mind this I just needed to answer five questions and im not smart

Explanation:

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Which one of these are considered as mechanical energy?
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Kinetic energy and potential energy.

The term 'mechanical energy' refers to the sum of the kinetic energy and the gravitational potential energy of an object,

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A 60 kg hockey player skating at 20 m/s gets slammed with a force of 950 N. How long does it take him to stop completely?
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2.4

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A. In one short sentence, explain why we call the force of gravity an attractive force.
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Answer:

Explanation:

(a) The force of gravity is called an attractive force because it is the force (although weak) in which a planetary body or matter uses to attract an object towards itself.

(b) Yes, it does and the formula for force of gravity between any two object is

F = G\frac{m1m2}{r}

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3 years ago
Distance and direction of an objects change in position from starting point
Tju [1.3M]

Answer:

An object changes position if it moves relative to a reference point. The change in position is determined by the distance and direction of an object's change in position from the starting point (displacement). Direction • Direction is the line, or path along which something is moving, pointing, or aiming.

Explanation:

6 0
3 years ago
Kate gathered 3 of the same size made of different materials: glas, clear plastic, and aluminum painted black. She placed on the
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<u>Answer:</u>

<em>To relate the type of box material to the warmth inside the box </em>

<u>Explanation:</u>

3 boxes are made with three different materials glass, plastic and Aluminium. Thermal conductivity is different for different materials. thermal conductors allow easy flow of heat through them and insulators allow minimal or no flow of heat through them.

Thus the amount by which an object gets heated up depends on the value of its conductivity. In this experiment, glass and plastic are insulators and aluminium is a conductor. Among glass and plastic, plastic is a better insulator.

<em>Thus the heat contained in the boxes will be of the order </em>Aluminium>glass>plastic.

3 0
3 years ago
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