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Q1. A 0.05 kg bullet travelling at 120m/s tears into a slab of thick wood. The wood exerts a constant retardation (negative acceleration) of magnitude 8000 m/s2. How long will it take the bullet to come to a stop?
Q2. Smoke particles in the air typically have masses of the order of 10 to 16 kg. The Brownian motion (rapid, irregular movement) of these particles, resulting from collisions with air molecules, can be observed with microscope.
(a) Find the root-mean-square speed of Brownian motion for a particle with a mass of 3.00 X 10 to 16 kg in air at 300 K.
(b) Would the root-mean-square speed is different if the particle were in hydrogen gas at the same temperature? Describe.
What is potential barrier for the molecule aggregation? Will the solution be stable at these conditions? Will it be stable at 100 mmol/L salt concentration?
If the beam now strikes the top of a building standing directly at the water's edge, find out the height of the building.
Boat A negotiates a curve whose radius is 370 m. Boat B negotiates a curve whose radius is 120 m. Each boat experiences the similar centripetal acceleration. What is the ratio of speed of boat A to that of boat B.
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
Because the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it should be released above the top of the loop-the-loop height.
What is vertical component of the acceleration
A baseball is thrown straight up. The drag force is proportional to.In terms of, what is the y-component of ball's acceleration when its speed is half its terminal speed and it is moving up.
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
A gasoline engine absorbs 2,600 J of heat and performs 1,000 J of mechanical work in each cycle. Find the total of heat expelled in each cycle.
The alpha line in the Balmer series of the hydrogen spectrum consists of light having a wavelength of 6.56 ×10-7 meter. Compute the frequency of this light.
At 500°C, the diffusion coefficient of Zn in brass is 4.10-17 m2.s-1. What is the flux of Zn moving down the rod.
A beam of parallel rays from a 24 MHz citizens band radio transmitter passes between two electrically conducting (hence opaque to radio waves) buildings located 45.00 m apart. What is an angular width of the beam as it emerges from between the buildi..
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