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During takeoff, an airplane goes from 0 to 50 m/s in 8 s.
a) What is its acceleration?
b) How fast is it going after 5 s?
c) How far has it traveled by the time it reaches 50 m/s?
Determine the magnitude of the force between two point charges, Q1 = -2e located at (-3.60 cm, +4.10 cm) and Q2 = -8e located at (-0.60 cm, -8.60 cm).
question a mirror produces a 10 cm high image of an object that is only 4cm high. if the image is also real and
If an electron travels 0.250 m from an electron gun to a TV screen in 32.0 ns, what voltage was used to accelerate it
How much work is needed to turn an electric dipole 180 o in a uniform electric field of magnitude 41.6 N/C if p = 2.66 × 10-25 C·m and the initial angle is 31.1o.
A satellite is in a circular orbit about the earth (M = 5.98 x1024 kg). The period of the satellite is 7.65 x104 s. What is the speed at which the satellite travels?
If the image is virtual, what is the object location for which the magnitude of the image distance is one third the magnitude of the object distance
A ball is thrown vertically upward with a speed of 25.7 m/s. The acceleration due to gravity is 9.8 m/s2. How high does it rise
Car is traveling at constantspped, passes a car stopped, it accelerates at 7m/s2 , what is final velocity of originally stopped car
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 27.0m/s as it leaves the hose nozzle. Find the angle of elevation of the hose
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. What is the radius of a chamber
Two carts collide in a perfectly elastic collision. Cart A has a mass of 0.5 kg and an initial velocity of 0.19 m/s. What is the final speed of each cart
Consider a universe where the matter density is 0, and it has a significant cosmological constant lambda. Determine how old is the universe in this case
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