An airplane maintains a speed of 627 km/h relative to the air it is flying through as it makes a trip to a city 787 km away to the north. (assume north is the positive y-direction and east is the positive x-direction.) (a) what time interval is required for the trip if the plane flies through a headwind blowing at 38.4 km/h toward the south

1.33 hr

Explanation:

Given

Speed of airplane relative to air=627 km/h

Distance traveled =787 km

Speed of wind=38.4 km/h

Wind is blowing in opposite direction therefore net speed is

thus time taken is

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.