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Two bars of identical mass are at 34 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/(kg · C°). When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 97 °C, while the other bar reaches 250.0 °C. What is the specific heat capacity of the other substance?
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 the vibrating mass
A horizontal force a of magnitude 22 N is applied to a 3.25 kg psychology book, as book slides a distance d = 0.500 m up a frictionless ramp.
A 240g block on a 60cm-long string swings in a circle on a horizontal, frictionless table at 70rpm.
A car m = 2500 kg is traveling at a constant speed of v = 33 m/s. The car experiences a drag force (air resistance) of Fd = 250 N. What is the power in horsepower
Two cars are traveling along a straight road. Car A maintains a constant velocity of 110 km/h and car B maintains a constant speed of 110 km/h. At t= 0, car B is 45 km behind car A. How far would car A travel from t = 0, before it is overtaken by c..
A coil consists of 212 turns of wire. Each turn is a square of side d = 18 cm, compute the magnitude of the induced emf in the coil
A rod is 0.5100 m long at 25C. At 225C the rod is loaded with a stress of 2 76 MPa and its length is found to be 0.5358 m, calculate the coefficient of thermal expansion for this material
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
There are two forces on the 2.13 kg box in the overhead view of the figure but only one is shown. For F1 = 26.7 N, a = 14.5 m/s2, and ? = 31.1°, find the second force in unit-vector notation
The two parallel plates in the figure below are 2.0 cm apart and the electric field strength between them is 2.1 104 N/C. An electron is launched at a 45° angle from the positive plate. What is the maximum initial speed v0 the electron can have witho..
In a period of 1.4 s, 5.0 1023 nitrogen molecules strike a wall of area 8.9 cm2. find the pressure exerted on the wall
A college campus features a large fountain surrounded by the circular pool. Two students start at the northernmost point of pool and walk slowly around it in opposite directions.
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