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umka21 [38]
3 years ago
5

Is kinetic energy scalar quantity

Physics
2 answers:
VashaNatasha [74]3 years ago
5 0

Yes, Kinetic Energy is a scalar quantity because the direction is not needed.  A scalar quantity is one dimensional measurement.

Explanation:

  • Kinetic Energy is a scalar quantity that means it has only a magnitude and no direction.
  • Energy has a size but no direction; two objects can have the same kinetic energy but they travel in opposite directions.
  • The formula of Kinetic Energy is
  1. K.E = \frac{1}{2} mv^{2}
  • Mass is a scalar quantity and velocity is a vector quantity.
  • squaring velocity will make vector to scalar quantity.
finlep [7]3 years ago
4 0

The kinetic energy is a scalar quantity as it requires only magnitude for description.

Explanation:

Scalar quantity refers to the quantity that has a single dimension. It is not dependent on the direction and has magnitude only, like Temperature and Mass.

Kinetic energy is possessed when the object is set in motion. Any object whether it is moving straight or spinning possess kinetic energy. It depends on two variables, namely, mass and velocity or speed of the object.

Kinetic Energy:  K.E. = \frac{1}{2} × m × v²

The metric unit to measure Kinetic energy is Joule (J).  

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When driving at night, only use your high-beam headlights___
zzz [600]

Answer:

B

Explanation:

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6 0
3 years ago
A circular 10-turn coil with a radius of 5.0 cm carries a current of 5 A. It lies in the xy plane in a uniform magnetic field =
Tju [1.3M]

Answer:

U = – 0.12J

Explanation:

Given N = 10 turns, I = 5A, r = 5×10-²m

B^ = 0.05 T iˆ+ 0.3 T kˆ

Magnitude of the magnetic field vector B = √(0.05²+0.3²) = 0.304T

Area = πr² = π(5×10-²)² = 7.85×10-³m²

Magnetic moment μ = NIA

μ = 10×5×7.85×10-³ = 0.3925Am²

U = -μ•B = –0.3925×0.304 = –0.12J

The sign is negative because the magnetic moment is aligned with the magnetic field.

3 0
3 years ago
Describe a situation where you can be traveling at a low speed but have an extremely high velocity
Reil [10]

Answer:

Cruising at 35,000 feet in an airliner, straight toward the east,

at 500 miles per hour

Explanation:

3 0
3 years ago
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Determine the change in velocity of a car that start at rest and has a final velocity of 20 m/s north
romanna [79]
The change in velocity is 20 m/s to the north.
6 0
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The objects shown in the following diagrams have different masses and are different distances apart. Which diagram shows the two
sergiy2304 [10]

Answer:

C. 10kg to 10kg

Explanation:

You have to picture to it I think

5 0
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