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Density is calculated by dividing the mass of an object by its volume. The Sun has a mass of 1.99 x 1030 kg and a radius of 6.96 x 108 m. What is the average density of the Sun?
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 470m to be the other plate. How much charge can the cloud hold before the dielectric strength of the air is ex..
calculate the ground state energy of of pi-electrons in octatetraene c8h10 using the particle in a box model. to
An airplane at a velocity of 650 miles/hour in a region where the earth's magnetic field is 5x10^-5 Tesla and is nearly vertical. Whats the voltage induced between the tips of the wings of anairplane(70m apart)?
a?1000 kg aircraft going?25 ms collides with a?1500 kg aircraft that is parked. they stick together after the collision
As you get ready for your early morning physics class, you comb your hair in front of a planar mirror. How far away from you is your image
What is the friction force that acts on the bear?
Just as the surface area-to-volume ratio depends on size, so can other properties. To see how, suppose that your size suddenly doubled; By what factor has your weight increased
Cyclotron's accelerate particles around a circular track during the use of electric and magnetic fields. The TRIUMF is one such cyclotron and is able to accelerate particles to a few percent the speed of light (We'll say 3%).
A fully charged capacitor with a voltage of120V is discharged through a resistor. What is the voltage across the capacitor at the end ofthreetime constants
The propeller of a light plane has a length of 1.752 m and a mass of 19.96 kg. The rotational energy of the propeller is 158.6 kJ. What is the frequency of the propeller in rpm
A gamma-ray telescope intercepts a pulse of gamma radiation from a magnetar, a kind of star with a spectacularly large magnetic field. The pulse lasts 0.16 s and delivers 9.5 x10 -6 J of energy vertically to the 59-m 2 surface area of the telescope..
A 47.0 g golf ball is driven from the tee with an initial speed of 56.0 m/s and rises to a height of 26.0 m. obtain the kinetic energy of the ball at its highest point
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