Obtain the speed of the airplane relative to the air
After flying for 15 min in a wind blowing 42 km/h at an angle of 28° south of east, an airplane pilot is over a town that is 56 km due north of the starting point. What is the speed of the airplane relative to the air?
Expected delivery within 24 Hoursrs
Calculate the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth. (answer in meters)
A small mailbag is released from a helicopter that is descending steadily at 3.00 m/s.
Q1. What must the charge (sign and magnitude) of a particle of mass 1.47 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 700 N/C? Use 9.81 m/s^2 for the magnitude of the acceleration due to gravity.
What is the force per unit length between the wires if they are 70 cm long and 1.5 cm apart? Is the force attractive or repulsive?
An electron in a cathode-ray tube is traveling horizontally at 2.60×109 cm/s when deflection plates give it an upward acceleration of 5.30 × 1017 cm/s^2.
A wheelchair marathoner has a speed of 5 m/s after rolling down a small hill in 1.5 s. If the wheelchair underwent a constant acceleration of 3 m/s2 during the descent, what was the marathoner's speed at the top of the hill?
A 20-ft long non-uniform rod rest with its two ends on scales. When a 120-lb person stands at the geometric center of the rod, the left scale reads 220 lbs and the right end reads 300 lbs. Determine the distance from the rod's center-of-mass to th
Calculate the final velocity of the baseball: A tennis ball (57 g) is rolling at a velocity of 5 m/s north. It collides with a baseball (142 g) that is initially at rest. The tennis ball bounces off at a velocity of 2m/s in the opposite direction.
A car is traveling on a straight road. The maximum velocity that can be attained by the car is 24 m/s. The maximum acceleration and decceleration it can attain is 1 m/s^2 and 4 m/s^2 respectively. Find the minimum time taken by the car to start fr
A charge q = 4.11x10-9 C is placed at the origin and a second charge equal to -2q is placed at x=1.00 m. Find the electric potential midway between the two charges.
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