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A 10.0cm long thin glass rod is uniformly charged to +50.0nC. A small bead, charged -5.0nC is 4.0cm from the center of the rod. What is the force (both magnitude and direction) on the bead?
A spring is hung from the ceiling. When a 0.450-kg block is attached to the free end of the spring and released from rest, the block drops 5.0 cm before momentarily coming to rest, after which it moves back upward. What is the spring constant of the spring?
The manufacturer of a new drug claims that it will lower
blood pressure by 13 points on the average. When the drug was
administered to 6 patients, the following drops in blood pressure
were registered: 12, 8, 15, 9, 10 and 16. Is the claim sustained at
the 0.05 level of significance.
How is order of reaction determined by half-life method? Explain with the help of an example
An object is being shot from a horizontal ground at an incline angle of 30 degree with respect to the ground at a speed of 49 m/s. Find the duration in seconds that the object is above the height of 13 m. Give your answer with one decimal place.
Explain the pressure and volume correction terms to the ideal gas equation and deduce van der Waals equation.
What force is there between two charges, each with 2.0 x 10-6 C if they are 0.03 m apart?
Calculate the i) average speed ii)root mean square speed and iii) most probable speed of oxygen molecules at 515K.(Given M_m(O_(2))=0.016kg mol^(-1))
Whatever solvent used the solution should be topped up to its final volume using water. true or false
Arrange the following according to increasing freezing point:
1m NaCl, 1m CaCl2, 1m C6H12O6, 1m AlCl3
Explain your answer.
