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Anettt [7]
3 years ago
5

In a Hall-effect experiment, a current of 3A sent lengthwise through a conductor of 1 cm wide, 4 cm long,

Physics
1 answer:
Marina CMI [18]3 years ago
4 0

Answer:drift velocity is 1.7*10^-4m/s and number of charge is 2.7*10^-24

Explanation:

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A student decides to give his bicycle a tune up. He flips it upside down (so there's no friction with the ground) and applies a
aleksklad [387]

Answer:

V=9.2565m/s

Explanation:

From the question we are told that:

Force F = 34 N  

Time t = 0.6 s

Length of pedal l_p=16.5cm \approx0.165m

Radius of wheel r = 33 cm = 0.33 m

Moment of inertia, I = 1200 kgcm2 = 0.12 kg.m2

Generally the equation for Torque on pedal \mu is mathematically given by

\mu=F*L\\\mu=34*0.165

\mu=5.61N.m

Generally the equation for  angular acceleration \alpha is mathematically given by

 \alpha=\frac{\mu}{l}

 \alpha=\frac{5.61}{0.12}

 \alpha=46.75

Therefore Angular speed is \omega

\omega=\alpha*t

\omega=(46.75)*(0.6)

\omega=28.05rad/s

Generally the equation for  Tangential velocity V is mathematically given by

V=r\omega

V=(0.33)(28.05)

V=9.2565m/s

 

5 0
2 years ago
Starting from rest, the Road Runner accelerates at 3 m/s for ten seconds. What is the final velocity of the Road Runner?
Charra [1.4K]

Answer

The answer to this question is 30 ms^{-1}

Explanation

As we know that accelartion is the rate of change of velocity. So, it can be write as

a = (V_f -V_i) /t

where

V_f is the final velocity

V_i is the initial velocity

t is the time

a is the accelartion

as we konw

a = 3 ms^{-2}

t = 10 s

From rest So,

V_i = 0

V_f = ?

Putting values

3 = (V_f - 0)/10

3 * 10 = V_f

30 = V_f

V_f = 30 ms^{-1}

So, the right answe is 30 ms^{-1}

6 0
3 years ago
Read 2 more answers
if an objects velocity doesn't tell us about the net force on an object, what characteristic of its motion does?
aleksklad [387]
The acceleration of the motion tells us about the net force acting on the body
5 0
3 years ago
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I drove from Oklahoma to California (1452.9 miles) in 23 hours? What was my average speed?
storchak [24]

Answer:

63 miles per hour

Explanation:

you just divide miles and hours to get your average speed

5 0
2 years ago
You split wood with an ax. How would you change the ax to make splitting the wood easier? You would increase mechanical advantag
alex41 [277]
I think you forgot to give the choices along with the question. I am answering the question based on my knowledge and research. You would increase mechanical advantage by <span>making the blade longer from the cutting edge. I hope that this is the answer that has actually come to your desired help.</span>
6 0
3 years ago
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