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Question1
Two vessels A and B each have n molecules of the same perfect monoatomic gas. Firstly the two vessels are thermally isolated from each other, the two gases being at the equal pressure and at temperature TA and TB respectively. The two vessels are now brought into thermal contact; pressure of the gases being kept constant at the value P. Find out the change in entropy of the system after equilibrium is established and explains that this change is non negative.
Question2
At local grocery store, you push a 14.9-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 12.0 N, you now accelerate the cart from rest during a distance of 2.02 m in 3.00 s. What was mass of the dog food?
Explain what is the current in the cell during this period? Assume that the gold ions carry one elementary unit of positive charge.
where the woman falls down from a great height, and comes to a full stop. For which case is the change in the woman's momentum the largest? For which case is the Impulse the largest?
A 2.20 H coil with a resistance of 2.18×10^2 ohms is in series with a 1.29×10^3 ohms resistor. What is the peak value of the potential difference across the coil
The rails are laid on a winter day when their temperature is 1.8°C. (a) How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 32.2°C
The football started on the ground 63yrds from the base of the goal posts and just barely cleared the 10ft high bar. How long after the ball was struck did it past through the goal posts
a 250-kg motorcycle goes around an unbanked turn of radius 13.7m at a steady 96.5 km/h. What is the magnitude of the net force on the motorcycle?
In the fastest measured tennis serve, the ball left the racquet at 73.14 m/s. How far did the ball travel during the serve
An electron has an initial velocity of (15.0 j + 22.0 k) km/s and the constant acceleration of (3.00*10^12 m/s^22)i in a region in which uniform electric and magnetic fields are present. If B = (400 µT)i, find the electric field E.
There are 3 force vectors acting upon a central mass of m = 2.5 kg. What is the magnitude and direction of the acceleration
an auditorium measures 40.0m X20.0 m X 12.0 m. The density of air is 1.20 kg/m^3. find the weight of air in the room
A curved plate of mass M is placed on the horizontal, frictionless plane as shown. How high the puck will shoot up from the plate
In the Michelson-Morley experiment, a null result, or a net fringe shift of ΔN = 0 was obtained when the Michelson interfero meter was rotated by 90°.
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