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## Leigh from Winchester, NH's Resources

1. What is the speed of an electron after being accelerated from rest by 37000 V? Must use the relativity equation. 2. A healthy astronaut's heart rate is 60 beats/min. Flight doctors on...

1. (a) Calculate the kinetic energy of a proton traveling 2.39×108 m/s. (b) Calculate the momentum of a proton traveling 2.39×108 m/s. 2. What is the speed of an electron whose kinetic...

1. (a) Calculate the kinetic energy of a proton traveling 2.39×108 m/s. (b) Calculate the momentum of a proton traveling 2.39×108 m/s. 2. What is the speed of an electron whose kinetic...

1. What is the speed of an electron after being accelerated from rest by 37000 V? Must use the relativity equation. 2. A healthy astronaut's heart rate is 60 beats/min. Flight doctors on...

1. What is the speed of an electron after being accelerated from rest by 37000 V? Must use the relativity equation.   2. A healthy astronaut's heart rate is 60 beats/min. Flight...

1. (a) Calculate the kinetic energy of a proton traveling 2.39×108 m/s. (b) Calculate the momentum of a proton traveling 2.39×108 m/s.   2. What is the speed of an...

As more identical capacitors C are added to the parallel circuit shown below, the total capacitance between points A and B (a) increases (b) remains the same (c) decreases   +...

How fast would an astronaut be flying away from Earth if the doctor measured her having a heart rate of 25 beats/min?

1. If the distance between two electric charges doubles, then the force they exert on each other changes by how much? (a) 4 times as big (b) 2 times as big

The wiring in a house must be thick enough so it does not become so hot as to start a fire. What diameter must a copper wire be if it is to carry a maximum current of 39 A and produce no more than...

1. A copper pipe has an inside diameter of 3.00 cm and an outside diameter of 5.00 cm. What is the resistance of 25.0 m of this pipe?   2. The wiring in a house must be...

1. Find the resistance of a 30 meter length of copper wire of 0.8 mm diameter. 2. How hot would a copper wire need to be for its resistance to be 3% larger than its value at room temperature (20ºC)...

Two point charges, Q1 = 3.7 μC and Q2 = -1.3 μC, are placed on the x axis. Suppose that Q2 is placed at the origin, and Q1 is placed at the coordinate x1 = -5.0 cm. (a) At what point(s) along...

The electric field between the plates of a paper-separated (K=3.75) capacitor is 8.25×104 V/m. The plates are 2.15 mm apart, and the charge on each plate is 0.670 μC.   (a) Determine...

The charge on a capacitor increases by 18 μC when the voltage across it increases from 93 V to 118 V. What is the capacitance of the capacitor?

A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 47 g spheres at the ends. When charged, nearly all the charge resides on the spheres. If the wires...

A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 47 g spheres at the ends. When charged, nearly all the charge resides on the spheres.   If the...

When f(x) is the function whose graph is shown in black below, use known areas to evaluate the integrals.   1. S40 f(x)dx= 2. S60 f(x)dx= 3. S52 f(x)dx= 4. S50 |f(x)|dx=...

Consider the Riemann sum shown in the figure below.   Describe the partition P: x0=     <x1=        <x2=      ...

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