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If the person's average speed is 67.4 kn/h, how much time is spent on the trip in units of h.
At t=0, a wheel rotating about a fixed axis at a constant angular acceleration has an angular velocity of 2 rad/s. T
One is traveling 60 miles an hour and the the other is traveling 50 miles an hour. After how long will they meet?
Assume the wire lies along an x axis with the moving end at the origin. The equation giving displacement y, in meters.
A radioactive decay series that begins with 237/93 Np ends with formation of the stable isotope 209/83 Bi. How many alpha particle emissions
A block of mass m = 2.32 kg slides down an alpha = 29.2° incline which is h = 3.56 m high. At the bottom, it strikes a block of mass M = 7.06 kg
Use Bernolli's equation to derive the following expression for the pressure P in the horizontal tube at the top of the vertical tube:
On a frictionless table, a spring has one end fixed and the other attached to block M. Block m, is in contact but not attached to M.
A mass M attached to an ideal spring with force constant k executes SHM on a horizontal frictionless table. It has a total energy of 1.0 Joule and amplitude .
In the Bohr model of the atom, the energy of the electron depends only on one quantum number, n. In the Paschen series of the spectral wavelengths
How many radioactive decay series exist in nature?
If the pulsar emits 10 pulses per second in its own frame of reference, at what rate are the pulses emitted in the rocket's frame of reference?
An alpha particle (the nucleus of a helium atom) has a mass of 6.64x10-27kg and a charge of +2e. What are the (a)magnitude and (b)direction
A sample of ideal gas is expanded to twice it original volume of 1.00m^3 in a quasi-static process for which P = alpha*V^2, with alpha = 5.00atm/m^6.
Specifically, Train A, traveling 70 miles per hour (mph), leaves Westford heading toward Eastford, 260 miles away.
Derive an expression for the buoyant force on a spherical balloon, submerged in water, as a function of the depth below the surface
A student throws rocks from the roof of a building. All of the rocks are thrown with the same initial speed v_0 and from the same initial height y_0
A certain nuclear power plant is capable of producing 1.0 X 10^9 W of electric power. During operation of the reactor, mass is converted to energy
As he rises up, he takes a trained monkey of mass m off a perch at a height "h" above the trampoline. What is the maximum height attained by the pair?
A cylinder with moment of inertia I about its center of mass, mass m, and radius r has a string wrapped around it which is tied to the ceiling.
You launch a small mass m into a large mass M, and it swings up a height h where the two masses stick together.
The nucleus of the polonium isotope 214Po (mass 214 u) is radioactive and decays by emitting an alpha particle (a helium nucleus with mass 4 u)
The period of a stone swung in a horizontal circle on a 2.00-m radius is 1.00 s.What is its radial acceleration in m/s^2
A compass needle in a uniform magnetic field of 0.30 T experiences a torque of 0.050 N * m when it points in a direction 45 degrees away from the direction
An object is thrown horizontally from the top of a building at a height of 32.5 m above the ground, it hits the ground 65m from the base of the building.