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An ice chest at a beach party contains 12 cans of soda at 2.90 °C. Each can of soda has a mass of 0.35 kg and a specific heat capacity of 3800 J/(kg C°). Someone adds a 9.12-kg watermelon at 27.5 °C to the chest. The specific heat capacity of watermelon is nearly the same as that of water. Ignore the specific heat capacity of the chest and determine the final temperatureTof the soda and watermelon in degrees Celsius.
Radioactive isotopes are often introduced into the body through the bloodstream. If the decay rate in the thyroid 24.0 d later is actually measured to be 17.0Bq , what percent of the tracer went to that gland
When subject to a steady acceleration of 0.800 g, the object must be located 0.600cm from its equilibrium position. Find the force constant required for the spring.
A rigid conducting loop has the shape of an equilateral triangle with sides a = 42 cm. Each side of the loop has a resistance of R = 3 W. An exterior torque forces the loop to rotate at constant speed at an angular rate of 7 cycles per second about i..
A single slit with width 820 nm is illuminated with light of wavelength 555 nm. How many minima occur in the angular range from ? = -26o to ? = 26o?
Ilya and Anya each can run at a speed of 7.10mph and walk at a speed of 3.00mph. They set off together on a route of length 5.00miles. How long does it take Ilya to cover the distance
A uniformly charged conducting sphere of 1.6 m diameter has a surface charge density of 9.9 µC/m2. What is the total electric flux leaving the surface of the sphere
a helium balloon floats at the end of a string. the lift force due to the helium on the balloon is 30 n. if the tension
A mass spectrometer has an adjustable magnetic field. When themagnetic field is 7.000e-2 T, a singly ionizedhydrogen atom (a proton) will strike the detector at a particularlocation. Suppose a triply-ionized carbon 12 atom, whose mass is bydefinit..
Two sheets of plywood, 1.2 by 2.4 m in dimension, are 0.013 m thick. They are divorced by 0.076 m of fiber glass. If the plywood is replaced by two thinner sheets that are 0.0095 m thick, how thick must the fiber glass layer be to have the similar th..
a falling rubber ball bounces off the floor. the velocity just before it hits the floor is Vi= (2.7m/2) x + (5.2m/s)y. what is the change in momentum of the ball from just before to just after it is in contact with the floor
An 18.0 V battery is connected to two parallel metal plates placed in a vacuum. What is the speed of the electron just as it reaches the positive plate
A space craft is designed to be rotating column, in order to simulate artifical gravity. find angular frequency must be maintained to simulate surface gravity
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