Answer:
(a)
(b) P = 6309.6981 W
(c) Value in above part is described as minimum because there would have been power loss in the actual system to achieve this acceleration from the state of rest.
Explanation:
Given:
mass of car, m = 1140 kg
expression of acceleration,
where "t" is time in seconds
initial time,
final time,
(a)
We know,
Kinetic Energy
∴
(b)
We know,
Power
P = 6309.6981 W
(c)
Value in above part is described as minimum because there would have been power loss in the actual system to achieve this acceleration from the state of rest.
Thus, the car would travel a distance of 50 metres in 4 seconds.
Answer:
A beta emission(negatron)
Explanation:
1. A negatron resembles an orbital electron. It is represented as β⁻.
A negatron has a mass number of 0 but with a charge of -1
The decay of C-14 to N-14 can be depicted below:
¹⁴₆C → ¹⁴₇N + ₋₁⁰e
Both the mass number and atomic number is balanced according to the reaction.
2. In an electric field, the emission produced would be deflected towards the positive pole because it is negatively charged.
The area between two times under a speed/time graph
is the distance covered during that time.
The area between two times under a distance/time graph
has no name or physical significance.