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On March 5, 2006, a new college basketball attendance record of 33,633 was set in Syracuse University's Carrier Dome in the last regular-season game against Villanova. The volume of air in the dome is about 1.5×106m3. Estimate the temperature change of the air in 2 h, if all the seats in the dome are filled and each person transfers his or her metabolic thermal energy to the air in the dome at a rate of 100 W (100 J/s). Assume that no thermal energy leaves the air through the walls, floor, or ceiling of the dome and specific heat of air is 1000 J/kg⋅°C.
A 60.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.760 and 0.410, correspondingly. What horizontal pushing force is required to (i) just start the crate moving and (ii) slide the crate ..
A 2.47 kg steel ball strikes a massive wall at 11.7 m/s at an angle of alpha = 67.2° with the plane of the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.218 s, what is the magnitude of average force..
A photocathode whose work function is 2.5 eV is illuminated by white light of wavelength range from 380 nm to 720 nm. What is the stopping voltage Vnot for this experiment
A sealed 63 m3 tank is filled with 5000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. determine The mass density of the oxygen gas
You need to use your cell phone, which broadcasts an 828 MHz signal, but you're in an alley between two massive, What is the angular width, in degrees, of the electromagnetic wave
A resistor with R=300 ? and an inductor are connected in series across an ac source that has voltage amplitude 500 V. What is the amplitude of the voltage across the inductor
Two resistors A and B are 60,000 and 40,000 (omega sign) respectively and are in series across a constant power supply of 100V. What amount of current is flowing in each of the 3 resistors
Determine the magnitude of the total initial momentum of the two-block system. Find , the magnitude of the final velocity of the two-block system. What is the change in the system's kinetic energy due to the collision?.
A 0.12 m3 rigid tank initially contains refrigerant R-134a at 1 MPa and 100% quality. find the mass of the refrigerant that has entered the tank
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m^3 , length 92.1 cm and diameter 3.00 cm from a storage room to a machinist. Calculate the weight of the rod
A closely wound rectangular coil of 80 turns has dimensions 25 rm cm by 40 rm cm. The plane of the coil is rotated from a position in which it makes an angle of 37 degrees with a magnetic field of 1.10 rm T to a position perpendicular to the field..
what are the ax and by components of the vector that must be added to the following three vectors so that the sum of
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