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Two identical carts travel towards each other at the same speed, v, along a frictionless track. They collide and stick together. What is the speed of the two-cart system after the collision? Show yo
A beam of protons is moving toward a target in a particle accelerator. This beam constitutes a current whose value is 0.50mA. How many protons strike the target in 15s?
What subdivisions make up the geologic time scale? What is the primary basis for differentiating the eras?
A sound wave is traveling through a medium no one has ever heard of but its velocity is 2.51m/s and its frequency is 36.9 Hz. What is the wavelength of this wave?
Assume that the potential is defined to be zero infinitely far away from the particles. Unlike the electric field, the potential will be zero at multiple points near the particles. Find the two poin
Determine the pressure change when a constant volume of gas at 1.60 atm is heated from 20.0C to 30.0C
A 6.0 resistor is connected across the terminals of a 10.0 V battery. If 0.50 A of current flows, what is the internal resistance of the battery?
A 2.0 C charge is moving 1.5 m/s in the +z-direction through a 2.0 N/C electric field in +x-direction and a 0.50 T magnetic field in the -z-direction. What is the direction and magnitude of the tot
Light from a lamp, which emits light a several discreet different wavelength, illuminates an 800 line/mm diffraction grating. A screen is placed 50.0 cm behind the grating where the light is observ
A proton moves straight upward (away from the ground) through a uniform magnetic field that points from east to west and has a magnitude of 4.0 T. If the proton moves with a speed 0.79×107m/s
You hold a hammer at a height of 1.31 m, release it, and observe that it falls to the surface in 25.4 s. Determine the mass of the planet (in Tkg; 1 Tkg = 1012 kg)
Assuming you are doing this problem for an exam, make a number of simplifying assumptions that will allow you to calculate reasonably promptly how much time it would take to heat the water from room
If lightning hits the south side of a barn, and a christmas wreath (which has wires with resistance), which way is the current going to come out of the wreath, out or in towards the barn? Also, whi
List in chronological order, the main principles discovered that eventually enables Einstein to publish his groundbreaking papers.
A proton (mass 1.0 u) collides elastically with a deuteron (mass 2.0 u) initially at rest. After collision the proton is moving at 6.2 ! 105 m/s at 31° clockwise from its initial direction of mo
A cylindrical storage tank has a radius of 1.26 m. When filled to a height of 3.28 m, it holds 12000 kg of a liquid industrial solvent. What is the density of the solvent?
What role does the equivalence of the inertial and gravitational properties of mass play in the development of general relativity?
There is a wooden block of .50 kg forced against horizaontal spring with an elastic constant of 120 N/m. What is the blocks max change in temperature if its specific heat is 1700 J/kg Celius.
Two boxes are placed at opposite ends of a 3.0 m long board. The board is supported underneath by a fulcrum. The box on the left has a mass of 25kg, and the box on the right has a mass of 15 kg. Ig
What is the relationship between x-ray beam quality and signal to noise ratio and contrast to noise ratio (independently). Direct literature evidence is required to support the answer.
An astronomer at the equator measures the Doppler shift of sunlight at sunset. From this, she calculates that Earth's tangential velocity at the equator is 465 m/s. The centripetal acceleration at
A small plastic ball of mass 5.60 × 10-3 kg and charge +0.220C is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium
A powerful bolt of lightning can carry a current of 225 kA. If two such bolts strike simultaneously at a distance of 29 m from each other, what is the magnetic force per meter exerted by one bolt o
An electron moves in the xy plane with a speed of 3.75 x 106 m / s at an angle 600 with the x-axis 300 and the axis. A magnetic field of 0.85T is in the positive direction of axis y. Find the magne
A beam of light with red and blue components of wavelengths 670 nm and 425 nm, respectively, strikes a slab of fused quartz at an incident angle of 30o. On refraction, the different components are