Answer:
Explanation:
Force can be found by multiplying the mass by the acceleration.
The mass of the cart is 3 kilograms and the acceleration is 6 meters per second squared.
Substitute the values into the formula.
Multiply.
- 1 kilogram meter per second squared is equal to 1 Newton.
- Therefore, our answer of 18 kg*m/s² is equal to 18 N
The force exerted is <u>18 Newtons</u>
Answer:
Take a magnet and move it over the cup
Explanation:
Since there are metals also in the cup they would be attracted by the magnet leaving the plastic clips only in the cup
C. the left plate is positively charged
when looking at these arrows imagine there is a positive electron at the beginning of the arrow. Since the electrons are going towards the plate to the right it is attracted to the negatively charged plate. These electrons want to get away from the positively charged plate because same charges repulse each other
Answer:
The winding density of the solenoid, n = 104 turns/m
Explanation:
Given that,
Length of the solenoid, l = 0.7 m
Radius of the circular cross section, r = 5 cm = 0.05 m
Energy stored in the solenoid,
Current, I = 0.4 A
To find,
The winding density of the solenoid.
Solution,
The expression for the energy stored in the solenoid is given by :
Where
L is the self inductance of the solenoid
n is the winding density of the solenoid
n = 104 turns/m
So, the winding density of the solenoid is 104 turns/m