Answer:
T= 633.51 x 10⁻²⁸ N.m
Explanation:
Given that
r= 4.52 x 10⁻¹¹ m
v= 2.8 x 10⁶ m/s
B= 6.29 mT
We know that charge on electron Q
Q= 1.6 x 10⁻¹⁹ C
The time period t
t=2πr / v
Now by putting the values
t=(2 x π x 4.52 x 10⁻¹¹ ) / (2.80 x 10⁶)
t= 10.13 x 10⁻¹⁷ s
So current I
I = Q/t
I=(1.6 x 10⁻¹⁹)/(10.13 x 10⁻¹⁷)
I= 1.57 mA
The torque T given as
T = I A B
A= π x (4.52 x 10⁻¹¹) ² m²
A= 64.15 x 10⁻²² m²
T = I A B
T = 1.57 x 10⁻³ x 64.15 x 10⁻²² x 6.29 x 10⁻³ M.m
T= 633.51 x 10⁻²⁸ N.m
Answer:
most light waves are scattered or are either reflected
Explanation:
the light waves bounce after hitting the mirror.
Answer:
The percentage of the weight supported by the front wheel is A= 19.82 %
Explanation:
From the question we are told that
The center of gravity of the plane to its nose is
The distance of the front wheel of the plane to its nose is
The distance of the main wheel of the plane to its nose is
At equilibrium the Torque about the nose of the airplane is mathematically represented as
Where m is the mass of the airplane
is the weight of the airplane supported by the main wheel
So
Substituting values
Now the weight supported at the frontal wheel is mathematically evaluated as
Substituting values
Now the weight of the airplane is = mg
Thus percentage of this weight supported by the front wheel is 19.82 %
Answer:
* energy is proportional to masses. in a graph it would look like a line
* kinetic energy varies with the square of the velocity, In a graph it gives rise to a quadratic curve
Explanation:
Kinetic energy is defined by
K = ½ m v²
when analyzing this expression we can see:
* energy is proportional to masses. Therefore, doubling the mass doubles the kinetic energy and if the mass rises 4 times the energy rises 4 times, that is, they are directly proportional, in a graph it would look like a line
* kinetic energy varies with the square of the velocity. Therefore by doubling the speed the energy goes up 4 times. In a graph it gives rise to a quadratic curve