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A conductor is an extreme case of a dielectric, since if an electric field is applied to a conductor, charges are free to move within the conductor to set up “induced charges.” What is the dielectric constant of a perfect conductor? Is it K = 0, K S q or something in between? Explain your reasoning.
An American ski jumper has a mass of 59.6 kg. He is moving at a speed of 23.4 m/s at a height of 44.6 meters above the ground. Determine the total mechanical energy of the jumper.
a. 4.42 x 104 Jb. 4.24 x 10 -4 Jc. 4.24 x 10 3 Jd. 42. 24 x 104 J
A capacitor made of aluminum foil strips separated by Mylar film was subjected to excessive voltage, and the resulting dielectric breakdown melted holes in the Mylar. After this, the capacitance was found to be about the same as before, but the breakdown voltage was much less. Why?
Two parallel-plate capacitors, identical except that one has twice the plate separation of the other, are charged by the same voltage source. Which capacitor has a stronger electric field between the plates? Which capacitor has a greater charge? Which has greater energy density? Explain your reasoning.
Suppose the two plates of a capacitor have different areas. When the capacitor is charged by connecting it to a battery, do the charges on the two plates have equal magnitude, or may they be different? Explain your reasoning.
Let us suppose that the body weights of 800 students have a normal
distribution with mean l = 66 kg and standard deviation r = 5 kg.
Find the number of students whose weight is:
a) between 65 and 75 kg;
b) over 72 kg
program to print the first prime numbers in the given input
Sample Input 2
4
2
3
5
7
Sample Output 2
2
Sample Input 1
5
1
10
4
3
2
Sample Output 1
3
can i get coode for this the above code is not working for both cases
7. A 25 kg child slides down a 6.5 m playground slide that makes an angle of 20o with horizontal. The coefficient of kinetic friction between slide and child is 0.10.
Find the following:
a. What kind of energy is present on the child at the top of the slide? At the bottom of the slide?
b. How much potential energy does the child have?
c. How much kinetic energy does the child have?
d. How much energy is transferred to thermal energy?
e. If she starts at the top with A SPEED OF 0.50 m/s, what is her speed at the bottom?
program name: String lookup
input: plays
3
Raju is going to school
Teja plays cricket
car has four wheels
output: 2
A 200 g object is whirled in a horizontal circle with a cord of radius 1.2 m at 3rev/s. The work done in doing this is.
#340153 on Dec 2023