Answer: E = 39.54 N/C
Explanation: Electric field can be determined using surface charge density:
where:
σ is surface charge density
is permitivitty of free space ()
Calculating resulting electric field:
E = 39.54
The resulting Electric Field at any point is 39.54N/C.
Answer:
D
Explanation:
The motion of an object can be described by its speed, position, and direction so its all of the above
Answer:
Explanation:
Density of an object is defined as the mass occupied per unit volume. “Density” is represented by “ρ”. Mathematically, where, “m" mass of an object and "v" is volume of an object.
Given that,
Step: 1
To find the mass of the copper:
Mass of the copper is 268.8 kg.
To balance the weight of the copper 268.8 kg = weight of the iron the volume required is
Step: 2
Answer:
4347.8 m/s
Explanation:
It is given that the radius of the circular path traversed by proton and electron is same. Also, we know that magnitude of charge on an electron and proton is same. Magnetic field strength is same for both.
Take the ratio:
The momentum is calculated by multiplying the mass and the velocity of the object.
momentum 1 : = (10 g)(4 m/s) = 40 g m/s
momentum 2: = (1000 kg)(0 m/s) = 0 kg m/s
Thus, the paper airplane has a greater momentum than the real airplane.