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Calculate the Schwarzschild radius of a black hole with the mass of:
a) 14.51 times that of the Sun.
b) an atomic nucleus with a mass of 87 times that of a proton.
Do sound waves exhibit diffraction effects? If so, determine the "slit" width that would diffract an audible sound wave (frequency between 20 Hz and 20 kHz). Would a doorway work or do you need a different sized opening?
Aluminum is a very light metal with density of 2.7 g/cm^3. What is the weight in pounds of a solid sphere of aluminum of radius 50 cm
An 85 kg man is standing 3.5 m from the right end of a10.0 m long 175 kg platform suspended by a cable at each end. What is the tension in the right side cable
At what angle should the highway engineer bank. What is the magnitude of the acceleration.
An object is placed 8cm in front of a converging lens with a focal length of 18cm. What is the lateral magnification
A 2.00 kg steel ball strikes a massive wall at 15.0 m/s at an angle of 60.0 degrees with the plane of the wall. compute the average force exerted by the wall on the ball
What is the electric potential between the two terminals. A capacitor is formed by placing a 20 cm long charge carrier charged to +10nC placed 5cm away from and parallel to a 20 cm long charge carrier charged to -10 nC. Find the electric field at 1..
Some hydrogen gas is enclosed within a chamber being held at 200^\ { C} with a volume of 0.025 \rm m^3. The chamber is fitted with a movable piston. Initially, the pressure in the gas is 1.50 \times 10^6 \; \rm Pa (14.8 \rm atm). The piston is slowly..
The electric potential energy stored in the capacitor of a defibrillator is 110 J, and the capacitance is 120 ?F. What is the potential difference across the capacitor plates
An object 25 cm from a convex mirror is observed to produce an image 13.6 cm behind the mirror. What is the focal length of the mirror
q1. mary is driving her car at 48 kmh. she approaches an intersection just as the traffic light turns yellow. the
The security alarm on a parked car goes off and produces a frequency of 1020 Hz. The speed of sound is 343 m/s. At what speed are you driving
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