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A Carnot engine operating between energy reservoirs at temperatures 300K \rm K and 530K K produces a power output of 1200W, What is the rate of heat output
a current of 2.78A slows in a straight wire segment of length 3.00cm i + 4.00cm j in a uniform magnetic field of strngth (2.50T).
In an EM wave the electric field oscillates 4 X 10^14 HZ at in the North - South direction. In what direction is the magnetic field oscillating
Science is about collecting data. What kind of data do you think you will collect in Physics 320 class? What kind of data will you collect about heat
A 3.00kg mass and a 5.00kg mass hang vertically at opposite ends of a rope that goes over an ideal pulley. what is the magnitude of the acceleration of the masses
24.0g of copper pellets are removed from a 300 ? C oven and immediately dropped into 120mL of water at 24.0 ? C in an insulated cup. What will the new water temperature be
A 4.00kg block slides down a frictionless inclined plane with an acceleration 3.00,/s^2. What is the angle of the incline above the horizontal
A 1200 kg car is pulling a 500 kg triler along level ground. Friction is negligible. What is the magnitude of the force exerted by the car on the trailer
A plane has an airspeed of 142m/s. A 16.0m/s wind is blowing soutward at the same time as te plane is flying. what is the magnitude of that velocity
using a large shiny curved surface (mirror). you notice that an object is upright and exactly 2/3 of the height of the object when it is 150m away from the mirror. what is the image distance
A sign weighing 400N is suspended at the end of a 350N uniform rod that is hinged at the wall. What is the tention T in support cable
A pair of slits, separated by 0.180 mm, is illuminated by light having a wavelength of ? = 612 nm. Express this path difference in terms of the wavelength
A jumper in the long-jump goes into the jump with a speed of 12m/s at an angle of 20 deg above the horizontal. How long is the jumper in the air
Two disks are mounted on frictionless bearings on the same axle and can b brought together so that they can couple and rotate as one unit. what is the angular speed after coupling
Consider a horizontal spring of spring constant 30 N/m. A 2 kg mass is attatched to the spring and pulled .05 m from the equilibrium position along a frictionless table. what is the maximum speed of
a powerful laser pulse cannon fires that is firing lasers. each laser pulse lasts 6.66 micro seconds. what is the average intensity of the laser
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0315 s, find the vertical components of the launch velocity
A cube of side 2cm is made of material of bulk modulus 4.7\times 10^{^{5}} N/m^2. What is the new length of each of its sides
The magnetic field 7.5 cm directly above the center of a 25-turn coil of radius 15cm is 0.80mT. obtain the current in the coil
The blue line of the hydrogen emission spectrum has a wavelength of 433.9 nm. Calculate the energy of one photon of this light
A bungee jumper with mass 60.0kg jumps from a high bridge. after reaching his lowest point, estimate the unstretched length of the bungee cord assuming SHM
Assume that 10 g of steam is added to 100 g of water initially at 19°C. The water is inside an aluminum cup of mass 35 g. Find the final temperature of the water after equilibrium is reached
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
A particle with a charge 3.2 x 10^-19 C is moving at a speed of 5x10^7 m/s that makes an angle of 40 degrees with respect to a uniform magnetic field B, Determine the magnetic field strength B
A 2.0 mm diameter plastic bead is charged to - 1.0nC. A proton is fired at the bead from far away with a speed of 1.0x10^6 m/s, What is the impact speed