That's the period of time known as one solar "day". We subdivide it into 24 slices which we call "hours". Using this system of time units, the day is about 4 minutes longer than one complete axial rotation of the Earth.
Are you answering a question or asking? You have already seemed to get the answer, A is the correct answer :I
Answer:21.97 m/s
Explanation:
Mass of truck
Velocity of truck
Mass of car
let be the car velocity and u be the velocity of combined system after collision at angle of
Conserving momentum in east and North direction Respectively
In east Direction
-------1
In North direction
---------2
Divide 1 and 2 we get
Answer:
1000/second
Explanation:
A nerve impulse is rise or fall of membrane potential in a certain region of a cell.
One nerve impulse lasts for 1 ms which is 10⁻³ seconds.
In the question it is given that one nerve impulse begins after one nerve impulse ends.
In 1 second there are 1000 ms.
So, the neuron firing rate would be 1000/second. This means that a nerve impulse will fire a thousand times each second.