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A 4.0 ohm resistor, an 8.0 ohm resistor, and a 12 ohm resistor are connected in series with a 24 v battery. What are (a) the equivalent resistance and (b) the current in each resistor?
Determine the change in boiling point for 300.0 g of carbon disulfide (Kb= 2.34 degrees C kg/mol) if 35.0 g of a nonvolatile, nonionizing compound is dissolved in it.
What is the tension in the string? What is the force causing the centripetal acceleration of the puck? What is the speed of the puck?
A large balloon is initially filled to a volume of 25.0 L at 353 K and a pressure of 2575 mm Hg. What volume of gas will the balloon contain at 1.35 atm and 253 K?
Two long parallel wires 20 cm apart are carrying currents 5 A and 8A in the same direction. Is there any point between the two wires where the magnetic field is zero?
A tire placed on a balancing machine in a service station starts from rest and turns through 4.85 revolutions in 1.41 s before reaching its final angular speed. Calculate its angular acceleration.
Light of wavelength 589 nm falls on a photoelectric surface and electrons of maximum kinetic energy 0.21 eV are emitted. Find the work function and the cut-off frequency of the surface.
A dentist's drill starts from rest. After 3.91 s of constant angular acceleration it turns at a rate of 2.74E+4 revolutions per minute. Find the drill's angular acceleration. Determine the angle thr
A small button placed on a horizontal rotating platform with diameter 0.330m will revolve with the platform when it is brought up to a rotational speed of 35.0m , provided the button is a distance
What are the least stable chair conformations of of 2-tert-butylcyclohexanol. i reviewed the stable ones, but the least stable ones are giving me problems.
When 1,2-cyclohexanediol is dehydrated in the presence of concentrated sulfuric acid, the major product is not an alkene. Instead, you get cyclohexanone as the major product.
A 24.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 88.5N and is directed at an angle of 30.0degress above the horizontal. Deter
The coefficient of kinetic friction between the log and the ramp is 0.850, and the log has an acceleration of 0.800 m/s2. Find the tension in the rope.
At a given instant two cars at distances 250m and 350mfrom the point of intersection 'O' of two stright roads crossingeach other at right angles are approching 'O' at uniform speeds of6m/s and 12m/s
The term bio-diesel does not refer to a specific compound, but covers a class of compounds. The popular form of bio-diesel contains a methyl ester.
A cable is lifting a construction worker and a crate. The weights of the worker and crate are 964 and 1650N respectively. The acceleration of the cable is 0.620m/s^2, upward. a) what is the tension
Car batteries are often rated in ampere-hours. Does this unit designate the amount of current, power, energy, or charge that can be drawn from the battery?
Assuming all of this sugar is glucose, and also assuming that all of this glucose proceeds through Glycolysis and the TCA cycle, how many grams of CO2, does the average human being contribute to our
Coke is an impure form of carbon that is often used in industrial preparations of metals from their oxides. A 7.20 x 104 g sample of coke is reacted with copper(II) oxide.
A car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. If the brakes are applied
Two Identically charged particles separated by a distance of 1.0m repel each other with a force of 1N. What is the magnitude of the charges?
A cart is propelled over an xy plane with acceleration components ax = 6.6 m/s2 and ay = -2.2 m/s2. Its initial velocity has components v0x = 7.4 m/s and v0y = 14.2 m/s. In unit-vector notation, wha
A mixture contains Al2O3 (s) [MW=101.96 g/mol] and Fe2O3 (s) [MW=159.69 g/mol] and weighs 1.983g. when heated under excess hydrogen gas, the iron oxide reacts to form water vapor and Fe(s) but the a
Compare this energy to the amount of energy absorbed by a person's body if they jumped from a chair to the floor (assume that all of the energy from the fall is absorbed by the person and h=0.5 m).
A 70.0 kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations: a) when the elevator is accelerating upward with an acceleration of 1.70m/s^2