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Otrada [13]
3 years ago
7

Tyler has learned that potential energy is energy stored. Tyler's teacher asks the students to come up with a demonstration of p

otential energy. Which of the following would best work for this demonstration?
A

A parked car in the driveway

B

Wheels spinning on the ground

C

A rock after it has been thrown

D

A child at the top of a slide
Physics
2 answers:
Advocard [28]3 years ago
7 0
D.A child at the top of a slide
MrMuchimi3 years ago
3 0
D; cause potential energy is when something has the potential to move
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An electron with a speed of 0.95c is emitted by a supernova, where cc is the speed of light. What is the magnitude of the moment
krok68 [10]

Answer:

2.59×10¯²² Kgm/s

Explanation:

Data obtained from the question include:

Velocity of electron = 0.95c

Momentum =?

Next, we shall determine the velocity of the electron. This can be obtained as follow:

Velocity of electron = 0.95c

Velocity of Light (c) = 3×10⁸ m/s

Velocity of electron = 0.95c

Velocity of electron = 0.95 × 3×10⁸

Velocity of electron = 2.85×10⁸ m/s

Finally, we shall determine the mometum of the electron.

Momentum is simply defined as the product of mass and velocity. Mathematically, it is expressed as:

Momentum = mass x Velocity

Thus, with the above formula, we calculate the momentum of the electron as follow:

Mass of electron = 9.1×10¯³¹ Kg

Velocity of electron = 2.85×10⁸ m/s

Momentum of electron =?

Momentum = mass x Velocity

Momentum = 9.1×10¯³¹ × 2.85×10⁸

Momentum = 2.59×10¯²² Kgm/s

Therefore, the momentum of the electron is 2.59×10¯²² Kgm/s

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3 years ago
Which statement describes the energy transformation that occurs when a person eats a sandwich to gain energy for a long hike? O
Nataly [62]

Answer:chemical energy is transformed into kinetic energy

Explanation:

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A car traveled at an average speed of 60 mph for two hours. How far did it travel?
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The answer is C- 120 Miles.
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SVEN [57.7K]

Answer:

Buffalo, NY

Explanation:

Temperature in Buffalo, NY = -29°C

In order to compare the temperatures we need to convert them to the same scale.

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So, the temperature in Buffalo, NY was -20.2°F and the temperature in Anchorage, AL was 19°F.

Hence, it was colder in Buffalo, NY than in Anchorage, AL.

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3 years ago
3.25 kcal is the same amount of energy as
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<span>1 cal = 4,185 J
1 kcal = 1*10^3 cal
or
=1000 cal</span>
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3 years ago
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