The circumference you found in part A is in inches. To convert the circumference to miles, divide the number of inches by 12 to get the circumference in feet. Then divide that number by 5,280 (there are 5,280 feet in a mile) to get the circumference in miles. This number is the number of miles a cup traveled in one revolution. Multiply this value by the 150 revolutions the cup made in one minute. Then multiply by 60 minutes to get the approximate number of miles per hour. Note: This is only an approximate value because it does not take friction into account.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Iwill give brainliest if you answer right : )

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell