Explanation:
So basically yh first off the number for protons and electrons are the same and to find them is to look at the atomic number because the atomic number is the same as protons and electrons.
To find the neutrons you need to take the actual atomic number from the atomic mass unit.
Hope that helps yh don't stress it.
The internal energy of the
system is characterized by the equation U = Q + W where U is the internal
energy, Q is the heat and W is work. You are given 2,380 J of energy to do work
as 12,900 J of heat so add up. The internal energy is 15,280J.
Answer:
The time it will take the car to travel the next 15 m is 1 s.
Explanation:
Given;
initial velocity of the car, u = 0
time of motion, t = 2.4 s
initial distance traveled, d = 15 m
determine the constant acceleration of the car;
d = ut + ¹/₂at²
15 = 0 + (0.5 x 2.4²)a
15 = 2.88a
a = 15 / 2.88
a = 5.21 m/s²
The velocity of the car at the end of the first 15 m
v - u + at
v = 0 + 5.21 x 2.4
v = 12.5 m/s
The time to cover the next 15 m;
d₂ = vt + ¹/₂at²
15 = 12.5t + (0.5 x 5.21)t²
15 = 12.5t + 2.61t²
0 = 2.61t² + 12.5t - 15
Use the formula method to solve the above quadratic equation.
a = 2.61
b = 12.5
c = -15
Therefore, the time it will take the car to travel the next 15 m is 1 s.
Answer:
calculate by urself u don't know this question