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1. The table below shows the least costs, in pounds, of travelling between six cities, A, B, C, D, E and F. Vicky must visit each city at least once. She will start and finish at A and wishes to minimise the total cost. (a) Use Prim’s algorithm, starting at A, to find a minimum spanning tree for this network.
2. An electric motor transfers 8000 J of energy in 2.5 seconds. Calculate its power. 3. A weightlifter gives a dumbbell 6 00 J of gravitational potential energy store in 1.2 seconds. What is the weightlifter’s power? 4. What is the power of an engine that does 120 000 J of work in 2 minutes? 5. A car transfers 5.95 kJ of energy in 35 seconds.
8) A submarine left Hawaii two hours before an aircraft carrier. The vessels traveled in opposite directions. The aircraft carrier traveled at 25 mph for nine hours. After this time the vessels were 280 mi. apart. Find the submarine's speed. 10) Jose left the airport and traveled toward the mountains.
One way to teach this concept would be to pick an orbital distance from Mars and have the students calculate the distance of the path and the height from the surface both in SI units and in English units. Ask why failure to convert might be a problem.
Speed, Distance, Time Worksheet. Use * m/s, km/h, or mph. Calculate Speed R̅= P 1. A car travels a distance of 540km in 6 hours. Calculate the speed of the car. 2. John is a runner. He runs the 100m sprint in 20.0 s. Calculate the John’s speed. 3. Lauren walks 400 m in 125 s . Calculate Lauren’s average speed. 4.
21 paź 2023 · Calculate rate of speed given distance and time. Find mph, miles per hour, km/hour. Solve for speed, distance, time and rate with formulas s=d/t, d=st, d=rt, t=d/s.
know formulae for constant velocity and constant acceleration be able to solve problems on motion with constant velocity and constant acceleration, including problems involving several such stages
