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Fuel systems of modern cars are designed so thermal expansion of gasoline doesn't result in wasteful and polluting fuel spills.
A certain radioisotope has a half-life of 7.45 days. What percentage of an initial sample of this isotope remains after 23 days?
The plane is forced to rotate with constant angular velocity Omega about the y axis. Find the equations of motion for x and y, solve them, and describe the possible motions.
Inside an insulated container, a 250-g ice cube at 0 °C is added to 200 g of water at 18 °C. (i) What is the final temperature of the system?
If an oscillation of a mass on a spring has 17 times the energy of another oscillation of the same mass on the same spring, what is the ratio of the amplitudes of the two oscillations?
A roller coaster traverses a vertical, circular track. a) what speed must the car have so that it will just make it over the top without assistance from the track?
If an oscillation of a mass on a spring has 16 times the energy of another oscillation of the same mass on the same spring, what is the ratio of the amplitudes of the two oscillations? Give the rati
A uniform,horizontal string has a mass of 0.030 kg and a length of 6.00 m. this string is attached toa wall at one end. the other end hangs over a pulley ans supports a mass of 2.00 kg at its end.
Consider an oven of volume 0.21 m3 at a temperature of 462 K. How many photons are in the oven? What is the average energy of a photon in the oven?
The initial state of 1.00 mol of dilute gas is P1 = 9.00 atm, V1 = 1.00 L, and Eint1 = 680 J, and its final state is P2 = 1.00 atm, V2 = 8.00 L, and Eint 2 = 810 J. The gas is allowed to expand at c
The block is pulled from its equilibrium position at x = 0 m to a displacement x = + 0.080 m and is released from rest. The block then executes simple harmonic motion along the x-axis (horizontal).
If the seventh bright fringe on the detector is 10.0 cm away from the central fringe, what is the wavelength of the light passing through the slits ? Full steps to understand please.
A ray of light traveling in air strikes the surface of a certain plastic slab at 63.0 degrees with respect to the normal in air. it travels in the plastic slab at a 30.6 degrees angle with respect t
A 5.00-kg object is hung from the bottom end of a vertical spring fastened to an overhead beam. The object is set into vertical oscillations having a period of 1.60 s. Find the force constant of the
A ship leaves port at 1.00p.m and sails in the direction N35W degrees at the rate of 20mi/hr. Anothership leaves port at 1.30P.M and sails in the direction N55E degrees at a rate of 16mi/hr. What is
The the axis of the rod is perpendicular to the direction of the wire and the distance between the wire and the closest end of the rod is 0.6 m. Calculate the electric potential induced across the r
Two positive charges of 1.9e-10 C are placed on the x axis at distances +48 cm and -48 cm from the origin, respectively. A third positive charge of 4.5e-11 C can be moved along the y axis. At what v
One mole of an ideal gas at 1 atm and 0 c is compressed isothermally from 50L to 20L during this process energy is transferred out of the gas what is the change of internal energy for this gas.
An LC circuit consists of a capacitor with C = 3.4 x 10^-6 F and an inductor with L = .08H. At t = 0 the capacitor has charge 5.4 x 10^-6 C and the current in the inductor is zero. The circuit oscil
A solid uniform spherical marble with mass 1kg and r= .02m rolls down a hill starting from rest. The hill is 1m high and has a hypotenuse of 2m. a. gravitational potential energy of the marble at th
The counting rate from a radioactive source is 8000 counts/s at time t=0, while 10 mins later the rate is 1000 counts/s. (a) What is the half-life? (b) What is the decay constant?
A 10.0 kΩ resistor and a capacitor are connected in series and then a 10.0 V potential difference is suddenly applied across them. The potential difference across the capacitor rises to 5.00 V
The constant a in van der Waals equation is 0.547 Jm3/mol2 and b is 30.52 x 10-6 m3/mol for water vapor. a. Compute the pressure at 75oC for 1 mol at a specific volume of 5 L.