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The two wires of length 2m are 3mm apart and carry a current of 10 A dc. Calculate the force between these wires
Hydrocarbons containing halogens are very useful molecules in synthetic chemistry. Use tabulated thermodynamic data as needed to calculate
A step-down transformer is used for recharging the batteries of portable devices. The turns ratio N2/N1 for a particular transformer used in a CD player is 4:57. find the power delivered to the CD p
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 28.0cm higher than the level in
For 0.51 M HCN (Ka=6.2 x 10-10), mark the majorand minor species found in the solution. H+ HCN CN- H2O OH- Now calculate the pH of 0.51 M HCN solution. (Ka=6.2 x 10^-10)
A solar panel is used to heat water in a tank. How much heat energy is needed to raise the temperature of 1000 L of water from an initial temp of 23 degrees Celsius to a final temp of 65 degrees Cel
The entropy change of the universe for any spontaneous process is always positive The equilibrium constant is always greater than one for an extensive reaction
A 12.5 gram bullet is fired into a board. The board is subjected to a force of 3.50x104 Newtons when it hits the board. If the bullet travels 3.50 cm before coming to a stop, what was the initial sp
Use tabulated thermodynamic data to calculate ?S° for the reaction: PbO2(s) + 2Ni(s) ? Pb(s) + 2NiO(s)
Calculate the wavelength of an 81kg athlete running a 4 minute mile. calculate in nanometers.
A 360 kg piano slides 2.5 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline
A 63.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35kg tool away from her at 3.60m/s relative to the space station. With what speed will she begin t
Two cars, both of mass m, collide and stick together. Prior to the collision, one car had been traveling north at speed 2v, Find the speed vfinal of the joined cars after the collision
A charged sphere of mass 3.00E-04 kg is suspended from a string. Find the magnitude of the electric force
D=(KBT)/6 xpie xr x n The HIV-1 virus has a radius of about 50 nm. The viscosity coefficient of water at 20 °C is 1.00 mPa·s. How far will a particle of HIV-1 typically travel in 1 minute
A 30 g dart is shot straight up at 9.7m/s . At the same instant, a 24g ball of cork is dropped from 2.0m above the dart. What is the direction of the cork ball immediately after it is hit by the dar
To fit a contact lens to a patient's eye, a keratometer can be used to measure the curvature of the cornea-the front surface of the eye. Determine the radius of curvature of the cornea
In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. What width of the north wall can she see
The magnetic flux that passes through one turn of a 18-turn coil of wire changes to 1.0 Wb from 9.0 Wb in a time of 0.092 s. What is the resistance of the wire
A 0.11- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. How far does the block go
A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. what is the length of the rotating s
A light bulb has a resistance of 230 ?. It is connected to a standard wall socket (120 V rms, 60.0 Hz). Determine the current in the bulb
In a series circuit, a generator (1384 Hz, 14.4 V) is connected to a 17.1-? resistor, a 3.69-µF capacitor, and a 5.72-mH inductor. Find the voltage across each circuit element
A golf ball of mass 0.045 kg is hit off the tee at a speed of 36m/s . The golf club was in contact with the ball for 3.90×10?3s. Find the average force exerted on the ball by the golf club