Answer:
12
Step-by-step explanation:
15/10=1.5
8 times 1.5=12
What do you need help with?
As the movement, it is not accelerated then
Xr = 30 T
Xp = 45(t-1)
they both will meet when x is the same, so
30T = 45T - 45
T = 3
they both will meet 3 hours after Roberto leaves, at 2 pm
Answer:
c
Step-by-step explanation:
When you provide heat (thermal energy) to the gas molecules, their root mean square velocity (kinetic energy) increases, as a result they the gas exerts a higher pressure on the walls of the balloon and the balloon expands.
