Other Physics Answers

Part of a steel tape used by a surveyor is 20m at 12°c.what is the overall length measured by using this part of the tape one hundred times on a warmer day corresponding to 22°c(linear expansivity of steel =1.1×10^-5k-1

Two point electric charges q2 = 5q1 and q1 are at a distance of 3 meters and apply a repulsive force of 0.02 N to each other, and how many microclones?

Find the energy transferred in 1 h by conduction through a concrete wall 2 m high, 3.65 m long, and 0.20 m thick if one side of the wall is held at 20∘C and the other side is at 5∘C.

1. A voltage of 12 V is placed on a capacitor with C = 85 pF. (a) What is the charge on the capacitor? (b) How much energy is stored in the capacitor?

2. In open-heart surgery, a much smaller amount of energy will defibrillate the heart. (a) What voltage is applied to the 7 F capacitor of a heart defibrillator that stores 60.0 J of energy? (b) Find the amount of stored charge.

3. Calculate the energy stored in a 5 μF capacitor charged to 30 V.

3. A series combination of two uncharged capacitors are connected to a 15 V battery, 300 μJ of energy is drawn from the battery. If one of the capacitors has a capacitance of 5.0 pF, what is the capacitance of the other?

1. Three capacitors with individual capacitances of 2 μF, 5 μF, and 10 μ respectively are connected in series with a 12V battery. What are the total capacitance and total charge in the network?
2. Same capacitors in number 1 connected in a parallel. If the combined charge in the network is 50 μC, what are the total voltage and total capacitance in the network?

Find the change in kinetic energy by an elastic spring with spring constant of 100 N/cm, as it goes back to its equilibrium position, from a length of 10 cm to 15 cm.

a. -250 J

b. -1250 J

c. 0

d. -2500 J

If v=fλ If frequency increase while two factor to actual value. what is the velocity of the facor

Determination of charge/mass ratio of electron using narrow fine beam tube experiment procedure

Determination of charge/mass ratio of electron using narrow fine beam tube experiment theory