We can solve this problem using the force equation.
Force = Mass * Acceleration
2kg * 4m/s = 8 N
The net force required to keep the object moving at this speed and in this direction is 8 N.
1). No. In a series circuit, the current leaving the battery is the same as the current arriving back at the battery at the other end of the circuit, and the same as the current at every point around the circuit.
2). True.
3). True
4). True
5). No. See #3.
6). No. See #2.
D= M÷V is the equation you're looking for. It means Density = Mass ÷ Volume
Explanation:
Given that,
Number of sodium ions at the negative electrode,
Number of chloride ions at the positive electrode,
(a) The current flowing in the circuit is due to the positive as well as negative charges such that total charge becomes:
Q = 0.01056 C
The current is given by :
So, the current passing between the electrodes is 10.56 mA.
(b) The direction of electric current is towards negative electrodes.
Answer:
Explanation:
Given that,
Mass of the ball, m = 58 g
To find,
Impulse did she impart to it
Solution,
Let u is the initial speed of the ball. Using equation of kinematics as :
At 5.5 m, v = 0
So,
Here, a = -g
u = 10.38 m/s
Since, the ball is stationary just before it is hit,
According to impulse- momentum theorem, the impulse imparted is equal to the change in momentum. So,
So, the impulse did impart to it is 0.602 kg-m/s. Hence, this is the required solution.