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NeTakaya
3 years ago
10

Which of the following is NOT a vector quantity?

Physics
1 answer:
lora16 [44]3 years ago
5 0

Answer:

D

Explanation:

Acceleration has both magnitude and direction. because velocity is vector quantity

average velocity is vector

linear momentum = mass× velocity

therefore it's also vector

force = mass× acceleration

acceleration is vector therefore force also vector

potential energy= mgh

energy in any form is scaler quantity therefore potential energy too is a scaler quantity.

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When current increases and resistance remains constant what must happen to voltage?
UNO [17]

Answer:

B.

Explanation:

Because V =IR.. So as the voltage incrraees cureent must increase

7 0
3 years ago
A sound mixer is impressed by the new equipment that was just installed in his recording studio. He says that now he will be abl
Artyom0805 [142]

Answer:

Wavelnght

Explanation:

He says undesired wavelengths can be eliminated with the new sound mixer. Musical sounds are spread over a medium through waves of different characteristics, one of them is wavelenght, that is the distance between begining and the end of an oscilation, normally measured on small distance units such as milimeters or even less. Sound may be higher or deeper depending on its wavelenght, so this sound mixer is able to filter all the sound  the user does not want to include in his work, for example, noises from enviroment. Now the producer can make music focused on high notes, like the ones from violins, or focused on low ones like the ones from a bass.

7 0
4 years ago
What type of energy results in a flow of electrons?
Genrish500 [490]

Electrical energy, a form of kinetic energy results in a flow of electrons.

<u>Explanation: </u>

Any kind of energy related to flow or motion of objects or particles falls under the category of kinetic energy. When an object undergoes motion or flow, it will exhibit velocity leading to kinetic energy, or energy utilized from the force applied for the motion.

In this case, the electrons will flow between the molecules due to the electric current supplied to it leading to the electrical energy, the flow of electrons generate current in opposing direction to the flow of electrons. Thus, current can be produced due to the flow of electrons on applying electrical energy.

4 0
4 years ago
1. What is the average velocity of a car that moved 40 km East and 80 km West in 2 hours?
irina [24]

The average velocity is 20 km/h west

Explanation:

The velocity of an object is given by:

velocity = \frac{d}{t}

where

d is the displacement

t is the time elapsed

The displacement of an object is a vector connecting the initial position and the final position of motion.

In this problem, the car moved

40 km East

80 km West

Therefore, the displacement is given by (taking West as positive direction)

d=80 km - 40 km = 40 km West

The time elapsed is

t = 2 h

Therefore, the average velocity is

v=\frac{40 km}{2h}=20 km/h in the West direction.

Learn more about average velocity:

brainly.com/question/8893949

brainly.com/question/5063905

#LearnwithBrainly

7 0
3 years ago
Most metals are in the liquid state at room temperature.
aivan3 [116]

Answer:

Most metals are in the liquid state at room temperature.<u>False</u><u>.</u>

Explanation:

it needs excess heat except mercury and lithium.

4 0
3 years ago
Read 2 more answers
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