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jok3333 [9.3K]
3 years ago
8

Can someone help me

Physics
1 answer:
cestrela7 [59]3 years ago
7 0

Answer:

c

Explanation:

its because an atom needs more of the other particles than the number of electrons

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The current in a hair dryer measures 15 amps. The resistance of the hair dryer is 14 ohms. What is the voltage?
ZanzabumX [31]
We have that there is a formula connecting these three. V=I*R where V is voltage, I is the current and R is the resistance. Substituting, we get that V=210 Volta, which is the unit of measurement for voltage. You can think of the relationship in the following way : The energy of the field is equal to the flow of the field times the resistance that it meets.
6 0
3 years ago
a 1210 kg roller coaster car is moving 6.33 m/s. as it approaches the station, brakes slow it down to 2.38 m/s over a distance o
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Answer:

4960 N

Explanation:

First, find the acceleration.

Given:

v₀ = 6.33 m/s

v = 2.38 m/s

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v² = v₀² + 2aΔx

(2.38 m/s)² = (6.33 m/s)² + 2a (4.20 m)

a = -4.10 m/s²

Next, find the force.

F = ma

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F = -4960 N

The magnitude of the force is 4960 N.

4 0
3 years ago
Read 2 more answers
Where is the potential energy equal to zero?
s2008m [1.1K]

Answer:

im sure your already past this but it's E.

Explanation:

This is because in this case potential energy is linear to height, which means that the higher the more potential energy.

4 0
3 years ago
An object is moving in the absence of a net force. Which of the following best describes the object's motion? -please help?
Gelneren [198K]
You can solve this by using Newton's First Law or Newton's Second Law.

1) Newton's First Law or Inertia Law states that in the abscense of a net force acting over an object, this will not chage its state of movement, i.e it will  remain at rest (if it is no moving) or with uniform movement (if the object is moving).

2) Newton's Second Law: Net force = mass * acceleration => acceleration = net force / mass = 0 / mass = 0.

Zero accelerations means rest or uniform movement.

First Law is implicit in Second Law.
7 0
2 years ago
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When potential energy is converted into Kinetic energy, some of that kinetic energy is always in the form of
Paraphin [41]

Answer: thermal energy

Explanation: Thermal energy is the conversion of kinetic energy

7 0
3 years ago
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