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A solid uniform spherical boulder rolls down the hill as shown in the figure(Figure 1) , starting from rest when it is H = 43.0{\rm m} above the bottom. The upper half of the hill is free of ice, so the boulder rolls without slipping. But the lower half is covered with perfectly smooth ice. Part A How fast is the boulder moving when it reaches the bottom of the hill? v = __________________m/s}
The pressure of a monatomic ideal gas () increases by a factor of 2.15 during an adiabatic compression. What is the ratio of the final volume to the initial volume
A cylindrical copper rod of length 1.30 m and radius 1.60 cm is insulated to prevent heat loss through its curved surface. find the rate at which entropy increases for the rod-reservoirs system
A ship travels 155 km from the port on a course of 35 degrees south of west to an island, then it travels 142 km east of south to a second island, Find the displacement from the starting point to the ending point
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part (1). What should be the maximum speed of the car so it can round the curve safely.
What is the cannonball's velocity at the highest point in the trajectory, How long does it take to get to this point
What is the magnitude of the induced electric field 0.2070cm from the axis of the solenoid? Give your reply in Volts/meter in scientific notation to three significant digits.
Du Pont and net income Ebersoll Mining has $6 million in sales; its ROE is 12 percent; and its total assets turnover is 3.2 . The company is 50 percent equity financed. Illustrate what is its net income?
In the Bohr model of the hydrogen atom, an electron (mass m=9.1×10?31kg) orbits a proton at a distance of 5.3×10?11m. How many revolutions per second does the electron make
A car of mass 1500kg turns an incined corner (radius 50m, angle 30degrees), How fast can the corner be taken without losing traction
Consider a system of three noninteracting identical bosons that moves in a common external one-demention harmonic oscillator potential. Find the energy level and wave functions of the ground state, the first state, and the second state of the system.
A skier (m=55.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 6.90 m and D = 10.4 m, determine H.
An ambulance is generating a siren sound at a frequency of 2400 Hz. The velocity of sound is 34.0 m/s. What is the frequency of the siren perceived by the observer
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