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Calculate the capacitance of two plates area 4cm² seperated by 1mm
1. Which ball was the most efficient? What characteristics does that ball have that you think
helped it be efficient?
2. Why is it impossible for a ball to be 100% efficient?
3. How did the GPE change with height?
4. What percentage of the initial potential energy was ‘wasted’ as the ball was hitting the
ground?
Suppose you need a capacitor bank with a total capacitance of 0.750-mF but you have only 1.50-mF capacitors at your disposal. What is the smallest number of capacitors you could connect together to achieve your goal, and how would you connect them?
a cell has an e.m.f. of 3v. when it is connected across a resistor of resistance 4ohms, a current of 0.5a passes through the current. calculator the internal resistance
A gas on a piston cylinder has a constant pressure of 10 psig vacuum. The
piston undergoes expansion which makes the volume of the gas from 0.05 m3
to 0.10 m3. Calculate the non-flow work in kJ
Derive schrodinger wave equation in its time dependent form
A point particle of charge 2.5nC and mass 3.25x10^-3 kg is in a uniform electric field directed to tje right .It is released from rest and moves to the right.After it has traveled 12.0cm,its speed is 25 m/s. Find the
a) work done on the partcle
b) change in tje electric potential energy of the particle and
c) magnitude of the electric field.
Calculate the electric flux for each of the closed surfaces a,b,c and d.
Find the flux through the top,left,and right side of a cube of side 0.5 m when placed in a horizontal uniform electric field of 8.0N/C directed to the right.
A vehicle drives west at a constant speed of 32 m/s, for 3.8 m. The vehicle then slams on the brakes and slows to a speed of 20.0 m/s with an acceleration of 4.0m/s2. After breaking the car then continues on for 5.0s at a constant speed until it breaks again for 2.0s until it stops. What is the total displacement of the vehicle?
