Answer:
75
Step-by-step explanation:
75+88+34+88+64+101 =450
450/6 = 75
add each week together, then divide by the total number of weeks
Answer:
Factor by which kinetic energy increase = 4 times
Step-by-step explanation:
Given,
- Mass of the car, v1 = 1500 kg
- initial speed of car = 35 miles/h

= 15.64 m/s
Initial kinetic energy of the car is given by,


= 183606.46 J
- Final velocity of car v2 = 70 miles/hour

= 31.29 m/s
So, final kinetic energy of car is given by


= 734425.84 J
Now, the ratio of final to initial kinetic energy can be given by,

Hence, the kinetic energy will increase by 4 times.
Answer:
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The figure can be splitted into 2 trapeziums.
Hence, 14.5 * 16 + 20 * 10 = 432.