Answer:
The current induced in the loop is
.
Explanation:
Given that,
Magnetic field 
Radius 
Resistance =R
We need to calculate the area of the loop
Using formula of area

Put the value of r in to the formula


We need to calculate the flux
Using formula of flux


We need to calculate the emf
Using formula of emf



We need to calculate the current
Using formula of current



Hence, The current induced in the loop is
.
Answer: initial velocity: 20 m/s
time taken to complete the turn: 50s
final velocity: 15 m/s
average acceleration= final velocity-initial velocity/time taken - 0s( 0 is taken here as there was no initial time)
= 15-20/50-0
= -5/50= -0.1 ms^2
Answer:
Option A. 1 bar = 1 atm
Explanation:
Pressure has various units of measurement. Each unit of measurement can be converted to other units of measurement. For example:
1 atm = 1 bar
1 atm = 760 mmHg
1 atm = 760 torr
1 atm = 1×10⁵ N/m²
1 atm = 1×10⁵ Pa
With the above conversion scale we can convert from one unit to the other.
Considering the question given above, it is evident from the coversion scale illustrated above that only option A is correct.
Thus,
1 bar = 1 atm
Answer:
A) Must be done 19806.62 joules of work.
B) The average power is 1320.44 Watts.
Explanation:
A) First, we're going to use the work-energy theorem that states total work (
) done on an object is equal to the change in its kinetic energy (
):
(1)
So, all we must do is to find the change on kinetic energy. Because we're working with rotational body, we should use the equation
for the kinetic energy so:
(2)
with
the initial angular velocity,
the final angular velocity (is zero because the wheel stops) and I the moment of inertia that for a thin hoop is
, using those on (2)
(3)
By (3) on (1):


B) Average power is work done divided by the time interval:


NOTE: We use the relation
to convert 280 rev/min(rpm) to 29.32 rad/s
Pulmonary Arteries: Blood vessels that carry deoxygenated blood from the heart to the lungs. Superior Vena Cava: A large vein that delivers deoxygenated blood from the upper body into the heart. Hope this helps