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Question: Calculate the change Δm in the combined mass m of a positive charge of 50 e and an electron when both are at rest and a distance 1 × 10-12 m apart, relative to their combined mass when both are at rest and very far apart.
When the Sun is straight overhead, a hawk dives toward the ground with the constant velocity of 4.50 m/s at 52° below the horizontal. Compute the speed of her shadow on the level ground.
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. Determine the acceleration (magnitude and direction) of the man
An apple is placed 13.6 cm in front of a diverging lens with a focal length of magnitude 22.4 cm. What is the magnification of the image of the apple
A hot-air balloon is rising upward with a constant speed of 2.89 m/s. How much time elapses before the compass hits the ground
An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.8 N. What is the volume of the object
at one time television sets used rabbit-ears antennas. such an antenna consists of a pair of metal rods. the length of
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). Continue working the problem above by calculating the direction of the force that Q1 exerts on Q..
The objective lens in a microscope with a 25.0 cm long tube has a magnification of -50.0 and the eyepiece has a magnification of20.0. What is the focal length of the objective
Write a formula for the function, f, which gives an object's mass in kilograms, k, as a function of its weight in pounds, p.
An86-Ω resistor and a 67-Ω resistor are connected in series across a battery. The voltageacross the 86-Ω resistor is 27 V. What is the voltage across the 67-Ω resistor?
Doug uses a 29 horizontal force to push a 3.5 crate up a 1.5 -high, 20 frictionless slope. What is the speed of the crate at the top of the slope
A certain elevator cab has a total run of 190m and a maximum speed of 305m/min, and it accelerates from rest and then back to rest at1.22m/s2. How far does the cab move while accelerating to full speed from rest?
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