What is the speed of the plane over the ground
An airplane pilot wishes to fly due west. A wind of 84.0 km/h is blowing toward the south. What is the speed of the plane over the ground in km/h?
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Calculate the electric force one ball exerts on the other, and state whether it is attractive or repulsive. (Enter the magnitude of the force.)
In SI units: (a) with what upward velocity is the rock shot, (b) what maximum height above the top of the building is reached by the rock, and (c) how tall is the building?
John, a 72-year-old grandfather, had been smoking heavily for 24 years and had a persistent cough. A biopsy of his lung tissue revealed considerable amounts of carbon particles. How could this happen considering the natural cleaning mechanism of t
The force vector A has a magnitude of 82.0 newtons (N) and points due east. The force vector B has a magnitude of 118 N and points 76.0 ° north of east. Find the (a) magnitude and (b) direction of A - B. (Give the direction as a positive angle
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.40sin(2pi*t), where F is in newtons and t is in seconds. The force constant of the spring is 35.0 N/m. (a) Find t
At one instant a bicyclist is 36.0m due east of a park's flagpole, going due south with a speed of 12.0m/s. Then 38.0s later, the cyclist is 36.0m due north of the flagpole, going due east with a speed of 12.0 m/s. For the cyclist in the 38.0s int
During a hard sneeze, your eyes might shut for 0.59 s. If you are driving a car at 95 km/h during such a sneeze, how far does the car move during that time?
A projectile is fired horizontally from a gun that is 33.0 m above flat ground, emerging from the gun with a speed of 130 m/s. (a) How long does the projectile remain in the air? (b) At what horizontal distance from the firing point does it strike
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