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An ice chest contains 12 cans of soda at 50o C. Each can of soda has a mass of 0.35 kilogram and a specific heat capacity of 3800 J/(kg Co). Someone adds a 6.5 kilogram watermelon at 27oC to the chest. The specific heat of the watermelon is nearly the same as that of water. Neglect the specific heat capacity of the chest and find the final temperature of the watermelon and soda.
a worker is dragging a box m 63 up a ramp using a ropen.the ramp makes an angle of 35 above the horizantal the rope is
Peter and Carter are dropping rocks into a stream from a bridge at a height of 28 m above the water below, As Meg emerges from the water below she is struck by both rocks. Calculate the speed of each rock at impact with Meg
What is the radius of a hydrogen-filled balloon that would carry a load of 3700 N (in addition to the weight of the hydrogen) when the density of air is 1.29 kg/m3
The armature of a simple ac generator has 30 circular loops of wire, each with a radius of 10 cm. What is the maximum emf induced in the loops
A violinist is tuning her instrument to concert A (440 Hz). She plays the note while listening to an electronically generated tone of exactly that frequency and hears a beat of frequency 5.00 Hz, what was the frequency of her violin when she heard ..
The entire string is 2.00m long and has a mass of 400-g. The vibrating section of the string is 1.90m long. What tension is needed to tune this string properly.
Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this, find the average force on the truck driver from the seatbelt
A glass flask at 0 degrees Celsius is filled to the brim with 1000 cm(^3) of mercury, what is the coefficient of volume expansion in the glass
a radiator has an emassivity of .90 and its exposed area is 1.23 m^2. The temperature of the radiator is 100 degrees C, What is the heat flow rate from the radiator
a ball is thrown from a point 1.0m above the ground. the initial velocity is 6.8m/s at an angle of 30 degrees above the horizontal. What is the speed of the ball at the highest point
at a certain location the earths magnetic field has a magnitude of 6.7times10-5 t and points in a direction that is 69
The average atmostpheric pressure Po on the surface of Mars is 6.0hPa. The radius of the planet is r = 3400 km. The acceleration dueto gravity is 3.7m/s^2. Compute the total mass M of the Martianatmosphere. Express M is Kg
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