A 1250-kg sports car (including the driver) crosses the rounded top of a hill (radius = 89.0 m ) at 23.0 m/s . a) Determine the normal force exerted by the road on the car.
b) Determine the normal force exerted by the car on the 70.0-kg driver.
c) Determine the car speed at which the normal force on the driver equals zero.

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

One answer could be erosion

34 degrees fahrenheit

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.