Astudent (m = 68 kg) falls freely from rest and strikes the ground. during the collision with the ground, he comes to rest in a time of 0.044 s. the average force exerted on him by the ground is +17,788 n, where the upward direction is taken to be the positive direction. from what height did the student fall? assume that the only force acting on him during the collision is that due to the ground.

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew