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4 years ago

14

Help i need correct awnserss

2 answers:

Ainat [17]4 years ago

7 0

Answer:

d

Explanation:

siniylev [52]4 years ago

5 0

Answer:

8.5mm understand it's the perfect answer

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Help ASAP). Draw additional masses to show how the block can be made to move toward point A. Be sure to draw the string and labe

chubhunter [2.5K]

Answer:

Given that the block have two applied masses 250 g at East and 100 g at South. In order to make a situation in which block moves towards point A, we have to apply minimum number of masses to the blocks. In order to prevent block moving toward East, we have to apply a mass at West, equal to the magnitude of mass at East but opposite in direction. Therefore, mass of 250 g at West is the required additional mass that has to be added. There is already 100 g of mass acting at South, that will attract block towards South or point A. No need to add further mass in North-South direction.

4 0

3 years ago

The resistanceless inductor is connected across the ac source whose voltage amplitude is 24.5 V and angular frequency is 850 rad

timurjin [86]

Answer:

Part A 2.88 A, PART B 28.82 mA PART C 0.288 mA

Explanation:

We have given angular frequency $\omega =850rad/sec$

Voltage source has an amplitude of 24.5 V, So V= 24.5 volt

Part A

We have given inductance $L=10^{-2}H$

So inductive reactance $X_L=\omega L=850\times 10^{-2}=8.5ohm$

So current $i=\frac{V}{X_L}=\frac{24.5}{8.5}=2.8823A$

Part B

We have given inductance $L=1 H$

So inductive reactance $X_L=\omega L=850\times 1=850ohm$

So current $i=\frac{V}{X_L}=\frac{24.5}{850}=28.82mA$

Part C

We have given inductance $L=100 H$

So inductive reactance $X_L=\omega L=850\times 100=85000ohm$

So current $i=\frac{V}{X_L}=\frac{24.5}{85000}=0.288mA$

8 0

3 years ago

Plz answer this now anyone

sasho [114]

Answer:

A

Explanation:

You are given Vi, Vf and t. The only thing left is a.

8 0

4 years ago

An object is dropped from an airplane and takes 72 seconds to hit the ground. What is the magnitude of its VF Y ?

Dafna1 [17]

The final vertical velocity of the object is 705.6 m

Explanation:

Here we have to analyze the vertical motion of the object, which is a free fall motion, with constant acceleration of

$g=9.8 m/s^2$

towards the ground due to gravity.

Therefore, we can use the following suvat equation:

$v=u+at$

where

v is the final vertical velocity

u is the initial vertical velocity

$a=g$ is the acceleration

t is the time

Since the object is dropped,

u = 0

Therefore, the magnitude of the vertical velocity of the object after t = 72 seconds is:

$v=0+(9.8)(72)=705.6 m/s$

Learn more about free fall:

brainly.com/question/1748290

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#LearnwithBrainly

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3 years ago

What is the area of space around a magnet called?

erma4kov [3.2K]

Answer:

These acts of attraction and repulsion are called “magnetism”, and the magnetic space around a magnet is called the “magnetic field”

Explanation:

8 0

3 years ago