What is the difference between Eo and E1/2?

What is the role of salt bridge in galvanic cells?

. What are the three electrodes employed in voltammetry? And what is their functions?

Please explain your answer thoroughly because I want to understand it well and also please include a diagram if possible

Two objects which have mass: m1 = 10kg and m2 = 20kg. Both of them are moving at the velocity of: v1 = 20^i ms and v2 = 10^j ms and then the two objects collide completely inelastically. In what direction do the two objects go after the collision? After the collision, how much kinetic energy was lost?

10.An AC voltage source is connected in series to an inductor, a capacitor, and a resistor of 8 Ohms. At the frequency when the phase angle is zero, capacitive reactance is 7 Ohms. What is the phase angle between the current and voltage at a frequency which is a factor of 3.2 times less than this frequency? answer in degresss and if negative

6. the resistance of a coil spun in a generator is 2 Ohms. the coil is in a magnetic field of 7.3 milli-tesla. if the coil is square with sides of 0.5 meteres and it is wound 29 times what does its frequency of spin, in Hz,need to be in order to produce a maximum current of 6 amps

An experiment in which 44.00kJ of heat is added to a cube of metal with initial side length 1.00m and temperature 300.K is performed twice, once with a copper cube and once with a lead cube. Fill in the blanks with "<", ">", "=", "N/A". Select N/A only if a comparison is not possible.

The copper cube's initial volume is  the lead cube's.
The copper cube's initial temperature is  the lead cube's.
The copper cube's final temperature is  the lead cube's.
The copper cube's final volume is  the lead cube's.
The copper cube's final mass is  the lead cube's.
The copper cube's final internal energy is  the lead cube's.

An object is being carried that has a mass ML = 50kg. That object's length is L = 10m. One person is lifting the object at the end of the object. The second person is lifting it at a point that is x = L 3 from the other end. How much weight each of the person is carrying? If the first person happens to let go of his end, how much torque does the second person needs to exert to keep object from falling down?

Positive charge A of charge 0.1 mC is placed at the origin of axis x, charge B, also positive, but of magnitude 4 times greater than A is placed at x=24.3 cm. These charges if released will run away from each other, but they are kept in place by the third charge positioned somewhere on the axis x. Find the value of this third charge (in mC).

In the figure below, the hanging object has a mass of m₁ = 0.400 kg; the sliding block has a mass of m₂ = 0.810 kg; and the pulley is a hollow cylinder with a mass of M = 0.350 kg, an inner radius of R₁ = 0.020 0 m, and an outer radius of R₂ = 0.030 0 m. Assume the mass of the spokes is negligible. The coefficient of kinetic friction between the block and the horizontal surface is μ_k = 0.250. The pulley turns without friction on its axle. The light cord does not stretch and does not slip on the pulley. The block has a velocity of v_i = 0.820 m/s toward the pulley when it passes a reference point on the table.

(a) Use energy methods to predict its speed after it has moved to a second point, 0.700 m away.
m/s

(b) Find the angular speed of the pulley at the same moment.
rad/s

Prove velocity in a rotational frame.

1. Write a description of all Newton’s Law, including any equations associated. For each law, provide a real-life example.

1) How do we know that an object performs a simple harmonic motion?
2) Is the movement of a pendulum a simple harmonic movement? Explain
3) Are there other types of pendulums that perform a MAS? Explain each

A runaway train speeds horizontally off a 500.0-m-high cliff. Ignore air resistance for all parts. (a) How long does the train spend in the air? (b) How fast did the train leave the cliff top to land on level ground below, 900.0 m from the base of the cliff? Give your answer in miles per hour. (c) What is the velocity (magnitude and direction) of the train 5 seconds after leaving the cliff? Give your answer with respect to the positive x-axis.

If we recreated the scene from Fast & Furious 7 and dropped a Challenger SRT® Hellcat Redeye Widebody from a C-130 aircraft at 5,280 ft, how much horsepower would it take to drive past it before it hits the ground if you’re 1 mile away? Pro Tips Air density @ sea level, 59 degrees, no wind = p = .002377 slugs/ft^3 Coefficient of drag (flat plate, NASA) = C(d) = 1.28 Weight = W = 4451 lbs Gravitation constant = g = 32.2 ft/sec^2 Area = A = 197.5"" long x 78.2"" wide x (1 ft^2/ 14 in^2) Vehicle falls flat, wheels 1st, straight down, at constant acceleration with no aerodynamic drag until terminal velocity Horsepower needed to accelerate is AVERAGE - not peak 100% driveline efficiency

A cannonball is launched with a velocity of 52.5 ms at an angle of 47.2◦ above the horizontal on a flat firing range. Ignoring air resistance for every part, determine (a) the maximum height reached by the cannonball, (b) the total time in the air, (c) the total horizontal distance covered, (d) and the speed and direction (angle) of the cannonball 1.50 s after firing.

Proton moving with V=2*106 m/s speed in a magnetic field of B=3T is under the effect of 4*10-12 N force. What is the angle between the magnetic field and the velocity of the proton.