Answer:
a. ρ
b. 
Explanation:
a. To find the density of magnetic field given use the gauss law and the equation:
,
,
Ω,
,
, 
ρ
ρ
ρ
ρ
b. The electric field can be find using the equation:




Here’s my work to your question. I used Newton’s Second Law and a kinematics equation to arrive at the answer.
Answer:
I only know how to answer 22
which is 250 J
Explanation:
KE: 1/2 mv^2
m- 5kg
v- 10 m/s
KE: 1/2 × 5 × 10^2
= 250 J
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</h2><h2><u>3</u><u>6</u><u>5</u><u> </u><u>DAYS</u></h2>
Period, being a time, is measured in units of time such as seconds, hours, days or years. The period of orbit for the Earth around the Sun is approximately 365 days; it takes 365 days for the Earth to complete a cycle

Hope It Helps!
Answer:
Explanation:
Force on a charged particle placed in an Electric field is given by the product of the magnitude of Electric Field and charge on the particle.
The direction of the force will be given by the nature of a charge on the particle. If the charge is positively charged then the force acting will be in the direction of the Electric field.
If the charge is negatively charged then force acting will be opposite to the direction of the electric field.
Thus no extra information is needed to determine the direction of force.