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Q1. A cube of ice is taken from the freezer at -8.6°C and placed in a 102 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The last situation is observed to be all water at 19°C. What was the mass of ice cube?
Q2. A particle of charge +1.5 nC is placed at a corner of a Gaussian cube with sides 12.0cm. What is an electric flux through the cube?
As a positron moves through a region of space, its speed increases from 2.80 106 m/s to 8.00 106 m/s. Across what potential difference did the positron travel
Find out h orizontal angle of projectile
Two charged pith balls are suspended on very light 10.7 cm strings. Each has a mass 11.0 g. In stability, the total angle between the strings is 37 degrees. Draw the free body diagram for one of the pith balls and clearly label all forces with magnit..
When 1190J of heat are added to one mole of an ideal monatomic gas, Find the work done by the gas during this process
questiona hare and a tortoise battle in a race over a straight course 1.05 km long. the tortoise crawls at the speed of
A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020g. Suppose that the volume of the empty spaces between candies is negligible.
Suppose a mangetic field of 7.45 mT is pointing into a piece of paper and then we shoot a small charged metal ball, 4.8 grams and +1.52 uC, What is the magnitude and direction of the force on the particle
A flat sheet of crown glass has a thickness of 2.3 cm. It is on top of a flat sheet of crystalline quartz that has a thickness of 3.6 cm. Light strikes the crown glass perpendicularly.
A capacitor consists of two concentric conducting spherical shells with radii R1 and R2 = 4.0R1. It has capacitance C = 4.0 pF, and is charged to a potential difference of 60.0 V. by what factor does the stored energy change
A 2000 kg car rounds a curve of radius 70 banked at an angle of 12. What is the magnitude of the friction force
Water flows trough a normal garden hose at 2 m/s. how fast does the water emerge from the hose nozzle
A 7.90×10-2-{rm kg} toy airplane is tied to the ceiling with a string. While the airplane's motor is started, it moves with a constant speed of 1.20m/s in a horizontal circle of radius 0.50m.
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