Answer:
Electric force, 
Explanation:
It is given that,
Magnitude of electric field, 
Charge, 
The electric field is directed parallel to the positive y axis. We need to find the force on the charge particle. It is given by :
So, the electric force on the charge is 
. Hence, this is the required solution.
Answer:
No
Explanation:
No matter where an object is, its mass will stay the same, but its weight might change depending on gravity.
Answer:
4N
Explanation:
Given parameters:
Weight of stone when immersed in water = 18N
Weight of water displaced = 4N
Unknown:
Weight of the stone in air = ?
Solution:
To solve this problem, we employ the Archimedes' principles.
It states that the upward buoyant force on a body is equal to the weight of the fluid displaced.
The weight of the water displaced is equal to the weight of the body.
So, the weight of the stone in air = 4N
First let's convert everything into SI units.
The length of the blade is 3 inches. Keeping in mind that 1 inc=0.025 m, we have
The angular speed is 600 revolutions per minute. Keeping in mind that
and
, the angular speed becomes
And so, the linear velocity of the edge of the blade is equal to
