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The temperature controller for a clothes dryer consists of a biometallic switch mounted on an electrical heater attached to a wall - mounted insulation pad.
The switch is set to open at 70°C, the maximum dryer air temperature. In order to operate the dryer at a lower air temperature, sufficient power is supplied to the heater such that the switch reaches 70 °C (Tset) when the air temperature T is less than Tset .If the convection heat transfer coefficient between the air and the exposed switch surface of 30 mm2 is 25 W/m2 .K, how much heater power Peis required when the desired dryer air temperature is T8 = 50°C?
A force F applied to an object of mass m1 produces an acceleration of 3.50m/s2. Determine what is the value of the ratio of masses
A 200 weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 30 m/s^2 for 33 s, then runs out of fuel. Ignore any air resistance effects. Illustrate what is the rocket's maximum altitude?
In the first stage of a two-stage Carnot engine, energy is absorbed as heat Q1 at temperature T1 = 530 K, What is the efficiency of the engine
An airplane is 5000 meter above an observer and 2.1 kilometer to the west of them and 1.5 kilometer to the north of you. Calculate the total distance to the plane from you
a 6.37-kg box is sliding across the horizontal floor of an elevator. the coefficient of kinetic friction between the
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 1.8 m/s2. How fast will the automobile be traveling at that instant
A box is sliding up an incline that makes an angle of 17.0 ° with respect to the horizontal. How far does the box travel along the incline before coming to rest
A compact disk on a CD player rotates clockwise. The disk completes one revolution in 0.234 s, what is the angular velocity of the disk
A coffee cup immersion heater utilizes a heating coil of resistance R= 8.5 Ohms. If a current of 12.9A passes through the coil, when operated at 110V determine the electrical power dissipated in the coil.
A block has a mass of 1.20 kg and is attached to a spring with spring constant of 5.00 N/m. How many oscillations is made by the block by that time
A circular loop of radius r = 4, is located in the xy plane, centered at the origin. Find the net flux leaving a closed sphere of radius r = 2, centered at the point (4, 0, 0)
The electric potential at a position located a distance of 21.0 mm from a positive point charge of 6.90×10-9C and 16.9 mm from a second point charge is 1.30 kV
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