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In making raspberry jelly, 887 g of raspberry juice is combined with 930 g of sugar. The mixture starts at room temperature, 23.0°C, and is slowly heated on a stove until it reaches 220°F. It is then poured into heated jars and allowed to cool. Assume that the juice has the same specific heat as water. The specific heat of sucrose is 0.299 cal/g·°C. Consider the heating process.
How much energy does the mixture absorb?
What is the minimum change in entrop of the jelly while it is heated?
To pump 100Joules of heat from the ice cube tray of freezing water at 273K, out into a hot room at 310 K, the laws of thermodynamics say that you will need at least how many Joules of ordered energy or work.
After a tornado, a 0.55-g straw was found embedded 2.8 cm into the trunk of a tree. If the average force exerted on the straw by the tree was 70 N, what was speed of the straw when it hit the tree .
Considering only the gravitational forces that the spheres exert on each other, illustrate what is the magnitude of the initial acceleration of the third sphere?
A 4x 11 swimming pool slopes linearly from a 1.20 depth at one end to a 3.80 depth at the other. What is the mass of water in the pool.
Diffraction plays an important role in which of the following phenomena.
A rectangular coil in the plane of the page has dimensions a = 46.00 m and b = 80.00 m. A long wire that carries a current I = 4.50 A is placed directly above the coil. For what value of x is magnitude of flux through the coil a minimum.
Lillian (mass 32.0 kg) standing on slippery ice catches her leaping dog (mass 15 kg) moving horizontally at 2.0 m/s. Evaluate what is the speed of Lillian and her dog after the catch?
A person with perfect pitch sits on a bus bench listening to the 450 Hz horn of an approaching car. If the person detects the frequency of 470 Hz, how fast is the car moving.
Two identical 0.13 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, where x2 = 0.04 m.
A nonconducting thin layer carries charge with a uniform density of 8.40 µC/cm2. (a) What is the electric field 3.80 cm in front of the wall if 3.80 cm is small compared with the dimensions of the wall? magnitude and direction?
If the blocks move determine the magnitude of their acceleration. If the blocks move determine the magnitude of the tension in the string. If the blocks do not move evaluate the sum of the magnitude of the forces of friction acting on the blocks...
An asteroid is discovered heading straight toward Earth at 15km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 29degree to its original path at a..
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