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3 years ago

Is force a vector, scalar, both, neither

2 answers:

8 0

Answer:No, force is a vector quantity, it is defined by its magnitude and direction. Common vector quantities are displacement, velocity, acceleration and force. Common scalar quantities are distance, speed, work and energy

Explanation:

No, force is a vector quantity, it is defined by its magnitude and direction. Common vector quantities are displacement, velocity, acceleration and force. Common scalar quantities are distance, speed, work and energ

AysviL [449]3 years ago

6 0

Answer:

Hello Adam Here! :D

Explanation:

A scalar quantity is defined as the physical quantity that has only magnitude, for example, mass and electric charge. On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force and weight. The other way of differentiating these two quantities is by using a notation.

OH YEAH! XD

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Which of the following is an example of the media's influence on government? (3 points)

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3 years ago

When conduction electrons pass through a device with resistance, which describes their energy?

Aleksandr-060686 [28]

Answer:

a) their potential energy increases.

Explanation:

Ohm's Law is

R= V/I

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3 years ago

A 0.272-kg volleyball approaches a player horizontally with a speed of 12.6 m/s. The player strikes the ball with her fist and c

Nady [450]

(a) +9.30 kg m/s

The impulse exerted on an object is equal to its change in momentum:

$I= \Delta p = m \Delta v = m (v-u)$

where

m is the mass of the object

$\Delta v$ is the change in velocity of the object, with

v = final velocity

u = initial velocity

For the volleyball in this problem:

m = 0.272 kg

u = -12.6 m/s

v = +21.6 m/s

So the impulse is

$I=(0.272 kg)(21.6 m/s - (-12.6 m/s)=+9.30 kg m/s$

(b) 155 N

The impulse can also be rewritten as

$I=F \Delta t$

where

F is the force exerted on the volleyball (which is equal and opposite to the force exerted by the volleyball on the fist of the player, according to Newton's third law)

$\Delta t$ is the duration of the collision

In this situation, we have

$\Delta t = 0.06 s$

So we can re-arrange the equation to find the magnitude of the average force:

$F=\frac{I}{\Delta t}=\frac{9.30 kg m/s}{0.06 s}=155 N$

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3 years ago

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Answer:

the heavier skater has less momentum

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antiseptic1488 [7]

Answer:

hope it helps...

Explanation:

The Principle of Moments states that when a body is balanced, the total clockwise moment about a point equals the total anticlockwise moment about the same point.

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3 years ago

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