What is the velocity of a proton that has been accelerated by a potential difference of 15 kv? (i)\: \: \: \: \: 9.5\: \times\: 10^5\: m. s^{-1} ( i ) 9.5 × 10 5 m . s − 1 (ii)\: \: \: \: 2.2\: \times\: 10^9\: m. s^{-1} ( i i ) 2.2 × 10 9 m . s − 1 (iii)\: \: \: 3.9\: \times\: 10^8\: m. s^{-1} ( i i i ) 3.9 × 10 8 m . s − 1 (iv)\: \: \: \: 1.7\: \times\: 10^6\: m. s^{-1}

What are the phases shown in a and d called?

I'm kinda lost ! 1. when marilyn takes her pet dog for a walk, the dog walks at a veryconsistent pace of 0.55 m/s. draw a position-time graph to representmarilyn's dog walking the 19.8 m distance from the front of her house tothe nearest fire hydrant.2. both car a and car bleave school when a stopwatch reads zero. car atravels at a constant 75 km/h, and car b travels at a constant 85 km/h. a) draw a position-time graph showing the motion of both cars. howfar are the two cars from school when the stopwatch reads 2 hrs? calculate the distances and show them on your graph. b) both cars passed a gas station 120 km from the school. when dideach car pass the gas station? calculate the times and show themon your graph.3. the figure below shows the position-time graph showing a shopper'smovement up and down the aisle at a store. a) write a story describing the shopper's movements at the store. b) when does the shopper have a position of 6 m? c) how much time passes between when the shopper enters the aisleand when he gets to a position of 12 m? what is the shopper's averagevelocity between 37 s and 46 s?

Asher cycles 12 miles in 16 hours. what is his speed?