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Question: Suppose on a day when the atmospheric pressure is 101kNm-2 you inflate a spherical balloon to a diameter of 20cm. Assuming that the elastic force of the balloon rubber is small enough to neglect, what will be the size of the force pushing out on 1cm2 of the balloon? What will be the size of the force pushing in on 1cm2?
Unpolarized light of intensity 1.1 W/m^2 is incident on a polarizer. what is the intensity of the light that leaves the analyzer
A satellite has a mass of 5839 kg and is in a circular orbit 4.10 × 105 m above the surface of a planet. The period of the orbit is 1.7 hours. The radius of the planet is 4.88 × 106 m. What would be the true weight of the satellite if it were at rest..
A particle of mass M is subjected to a force F(t) = kte-alphat, where k is a constant and alpha = 0.5 s-1. If the particle is initially at rest, calculate the position, velocity and acceleration as a function of time.
Particle X has a speed of 0.800 c and a momentum of 5.24 x 10-19 kgm/s. The mass of the particle is 1.31 x 10-27 kg, and the rest energy of the particle is 1.179 x 10-10 J. What is the kinetic energy of the particle
A crate rests on the flatbed of a truck that is initially traveling at 15 m/s on a level road. what is the minimum coefficient of friction between the crate and the truck that is required to keep the crate from sliding
A tennis player receives a shot with the ball (0.0600 kilogram) traveling horizontally at 54.0 m/s and returns the shot with the ball traveling horizontally at 30.0 m/s in the opposite direction, Estimate what work does the racket do on the ball
During the same interval, a 34 kg greyhound can accelerate from rest to 23 m/s. Calculate (a) the change in kinetic energy and (b) the average power output for each.
When a rifle is fired, the person firing the rifle absorbs the recoil. Consider an Olympic biathlete firing a competition rifle. What is the magnitude of the force absorbed by the athlete
The equation of a transverse wave on a string is given by the formula below. Find the linear density of this string in grams per meter
(a) How many horsepower is a 280 W lightbulb? (b) How many watts is a 240 hp car?
A pion is an unstable particle that has an average lifetime of 2.55 × 10^-8 s. How far does it travel in its lifetime, relative to Earth
In a single-slit diffraction pattern on a flat screen, the central bright fringe is 0.9 cm wide when the slit width is 4.60*10 -5 m. When the slit is replaced with a second slit, the wavelength of the light and the distance to the screen remaining ..
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