4 years ago

Which of the following are vector quantities? Check all that apply.

Physics

1 answer:

Dennis_Churaev [7]4 years ago

8 0

It’s distance for my answer but tell me if anyone tells u this answer thanks

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A circuit has a current of 1.2 A. If the voltage decreases to one-third of its original amount while the resistance remains cons

lapo4ka [179]

Consider the formula ...

Current = (voltage) / (resistance) .

If the resistance doesn't change, then the current is
directly proportional to the voltage.

If the voltage decreases to 1/3 of what it used to be,
then the current does the same thing.

1.2 A ----> 0.4 A

6 0

3 years ago

Work = force × _____<br> A. work<br> B. energy<br> C. distance<br> D. momentum

kati45 [8]

C. distance

sometimes the equation can be:

w = F x D x cos(x)

where cos(x) is the angle between where the force is exerted and the object's displacement

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3 years ago

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A constant net force that has a magnitude of 135.5 N is exerted on a 26.7 kg object that is initially not moving. a. Draw a free

jek_recluse [69]

Explanation:

Given that,

Net force = 135.5 N

Mass = 26.7 kg

(a). We need to draw a free body diagram

A force is exerted on a object.

(b). We need to calculate the acceleration

Using formula of acceleration

$a =\dfrac{F}{m}$

$a=\dfrac{135.5}{26.7}$

$a=5.07\ m/s^2$

(c). We need to draw the sketch a position vs. time graph for the object.

Using equation of motion

$s=ut+\dfrac{1}{2}at^2$

Put the value into the formula

$s=0+\dfrac{1}{2}\times5.07\times t^2$

$s=2.535 t^2$

(d). We need to draw the sketch a velocity vs. time graph for the object.

Using equation of motion

$v = u+at$

Put the value into the formula

$v=0+5.07t$

$v =5.07 t$

(e). We need to calculate the distance travel in 8.82 s

Using equation of motion

$s=ut+\dfrac{1}{2}at^2$

$s=0+\dfrac{1}{2}\times5.07\times(8.82)^2$

$s=197.20\ m$

Hence, This is the required solution.

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3 years ago

The fundamental mode of vibration of a wave is defined as that which has the ___________ frequency

kolbaska11 [484]

The fundamental mode of vibration of a wave is defined as that which has the LOWEST frequency

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3 years ago

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Final velocity for 2.6 seconds

enyata [817]

That's going to depend on the initial velocity, and how it changes
or doesn't change during the 2.6 seconds. I've read the question,
and Im pretty sure you didn't tell us any of that.

3 0

4 years ago