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Find the final velocity of the ball, Vf, assuming that mechanical energy is conserved and that Vf is along the original line of motion.
In terms of G, Me, m, and r, find the total mechanical energy Ea and Eb of the two satellites plus Earth's system before collision.
In the following circuit, what is the current through R1 at T=1 second after the switch is closed? How long does it take the capacitor to be 95% fully charged?
Light emitted by Element X passes through a diffraction grating having 1200 lines/mm. The diffraction pattern is observed on a screen 75.0 cm
The heating element of an electric hot plate, 26.5 ohms resistance, is connected across a 115 V circuit. How much heat will be developed in 10.0 seconds?
The lens and mirror in Figure P23.51 are separated by 1.00 m and have focal lengths of +80.2 cm and -49.0 cm, respectively.
A helicopter has blades of length 3.0m, rotating at 2.0rev/s about a central hub. If the vertical component of Earth's magnetic field is 5.0*10^-5T.
An insect of height 2 cm is in front of a spherical mirror whose focal length has the absolute value | f | = 40 cm.
Approximately 4x10^9kg of matter is converted into energy each second in the sun. Find the power output of the sun.
A real object is at the zero end of the meter stick. A large concave mirror at the 100-cm end of a meter stick forms an image of the object at the 70-cm
A stone is dropped from a height of 100m. At what height is half of its energy potential and half kinetic? What is the speed of the stone at this height?
Find the dipole moment of a non-uniform surface charge distribution on a sphere of radius a: s = s0*cos(?) where ? is the polar angle. What is the total charge?
m1 is then let go, and hits m2 an elastic collision. What will be the final height m2 will attain after recoiling from m2?
A concave mirror has a focal length of 30.0 cm. The distance between an object and its image is 45.0 cm.
An object is positioned at an initial angle on a frictionless spherical shell. It is then let go, and starts sliding on the shell.
Define the following four terms associated with light microscopy: refraction, refractive index, resolution and numerical aperture.
Rainbows are formed when light strikes raindrops and is reflected and refracted as shown. The figure shows a cross section of a spherical raindrop
Calculate the time required for the particle to reach the force center from a distance d.
Two railroad cars, each of mass 6500kg and traveling 95 km/h collide head-on and come to rest. How much thermal energy is produced in this collision?
The lifetime of a molecule in a certian electronic state is 10e-10 s. What is the uncertianty in energy of this state? Give the answer in J and in J/mol.
Two very narrow rays of light of different colors are incident on a glass plate at different angles.
Ignoring frictional forces and air resistance, what is the value of "h", the highest position the car reaches above the bottom of the hill?
"A 48.5 kg student climbs a 5.90 m long rope and stops at the top. What must her average speed be in order to match the power output of a 140 W lightbulb?"
The launching mechanism of a toy gun consists of a spring of unknown spring constant. If the spring is compressed a distance of 0.139 m.
The so-called "hydrogen alpha (Ha) line" is a specific wavelength of red light caused by excited atomic hydrogen. It is frequently used when studying the Sun.