Answer:
-(0.330m/s² ) kˆ
Explanation:
given data:
Mass of particle 'm'= 1.81 x kg
Velocity 'v'= (3.00 x m/s)j
Charge of particle 'q'= 1.22 x C
Uniform magnetic field 'B' = (1.63iˆ + 0.980jˆ )T
In order to calculate particle's acceleration, we'll use Newton's second law of motion i.e F=ma
Also,the force a magnetic field exerts on a charge q moving with velocity v is called the magnetic Lorentz force. It is given by:
F = qv × B
F= ma = qV x B
a= --->eq(1)
Lets determine the value of (v x B) first
v x B= (3.00 x m/s)j x (1.63iˆ + 0.980jˆ )
v x B= 4.89 x
Plugging all the required values in eq(1)
a= [1.22 x x (4.89 x kˆ)] / 1.81 x
a= -(0.330m/s² ) kˆ
-ve sign is representing the opposite direction
Answer:
not true because the mass from the heavy car will cause it to damage more
Explanation:
Answer
A. Half elementary charge
Explanation:
Answer:
Distance = 16.9 m
Explanation:
We are given;
Power; P = 70 W
Intensity; I = 0.0195 W/m²
Now, for a spherical sound wave, the intensity in the radial direction is expressed as a function of distance r from the center of the sphere and is given by the expression;
I = Power/Unit area = P/(4πr²)
where;
P is the sound power
r is the distance.
Thus;
Making r the subject, we have;
r² = P/4πI
r = √(P/4πI)
r = √(70/(4π*0.0195))
r = √285.6627
r = 16.9 m