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A student drops two metallic objects into a 120 gram steel container holding 150 gram of water at 25°C. One object is a190 gram cube of copper that is initially at75°C, and the other is a chunk of aluminum that is initially at 5.0°C.To the shock of the student, the water reaches a final temperature of 25°C, exactly where it started. Compute what is the mass of the aluminum chunk? g
A force of 323N is applied horizontally to a crate in order to displace crate 30m across a level floor at a constant velocity. As a result of this work.
Two boxes, m1 = 1.0 kg with a coefficient of kinetic friction of 0.10, and m2 = 2.0kg with a coefficient of 0.20, are placed on a plane inclined at 0 = 30o.
suppose a cyclotron is operated at an oscillator frequency of 10.8 mhz and has a dee radius 56.2 cm. estimate the total
Tension is maintained in a string as in the figure below. What is the mass per unit length of the string
The half life of Carbon-14 is 5730 years. Suppose the wood from an ancient campsite contains 5.00% of the Carbon-14 found in a present day sample. How old is the wood
two point charges are on the y axis. a 4.80-microc charge is located at y 1.25 cm and a -2.2-microc charge is located
An 89.6-kg jogger is heading due east at a speed of 2.97 m/s. A63.1-kg jogger is heading 18.2 ° north of east at a speed of2.26 m/s. Find (a) the magnitude and(b) the direction of the sum of the momenta of the two joggers. Describe the direction as a..
Your car's 28.5 W headlight and 2.50 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume
Establish the wave functions and the general expression
a car is initially moving at 60 ms and must stop in 100 m. what minimum constant acceleration must the car
a 384 kg piano slides 3.6 m down an 27deg incline and is kept from accelerating by a man who is pushing back on it
A standard 1 kilogram weight is a cylinder 46.5 mm in height and 42.5 mm in diameter. What is the density of the material
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