4. A certain tire has a size of P215/65R16. What does the 65 number signify?
A. The percentage of a tire's diameter to its circumference
OB. The Aspect Ratio of the tire
C. The Load Rating of the tire
he tire
OD. The percentage of a tire's size, from bead to bead, compared to its diameter

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.