Answer:
Atomic mass is defined as the number of protons and neutrons in an atom, where each proton and neutron has a mass of approximately 1 amu (1.0073 and 1.0087, respectively). The electrons within an atom are so miniscule compared to protons and neutrons that their mass is negligible.
I hope this is the answer you were looking for :D
Answer: Acceleration of the car at time = 10 sec is 108
and velocity of the car at time t = 10 sec is 918.34 m/s.
Explanation:
The expression used will be as follows.


= 


As, 
u = -2900 m/s

= 
= 

Also, we know that
a =
= 
= 
At t = 10 sec,
= 918.34 m/s
and, a = 108 
Answer:
v = 17.15 m/s
Explanation:
given,
angle of ramp = 17.0°
length of ramp(l) = 30 m
height of the ramp =


h = 15 m
using energy of conservation





v = 17.15 m/s
speed of block reaching at the bottom = v = 17.15 m/s