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A 2-kg ball is moving with a constant speed of 5 m/s in a horizontal circle whose radius is 50 cm. What is the magnitude of the net force on the ball?
A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 20° with a speed of 24.5 m/s. What is the minimum coefficient of static friction required for the car n
A student slides her 80.0-kg desk across the level floor of her dormitory room a distance 2.00 m at constant speed. If the coefficient of kinetic friction between the desk and the floor is 0.400, h
A constant force F = 2.00 Ni + 3.00 Nj acts on a 5.00 kg object as it moves in a straight line from the position r1 = 1.00 m i + 1.00 m j to a position r2 = 4.00 mi - 1.00 mj . Determine the work do
If state law mandates that elevators cannot accelerate at greater than 2.70 m/s2 or travel faster than 15.3 m/s, what is the minimum time in which an elevator can travel the 373 m from the ground fl
2 mol of an idea gas ( = 1.4) expands slowly and adiabatically from a pressure of 4 atm and a volume of 10 L to a final volume of 25 L. The universal gas constant is 8.31451 J/K · mol. What i
Determine the temperature (oC) and the total enthalpy (kJ) when the heating is completed. Sketch the P-v diagram to show the process.
An ideal gas at temperature T0 is slowly com- pressed at constant pressure of 2 atm from a volume of 10 liters to a volume of 2 liters. Then the volume of the gas is held constant while heat is adde
1 mol of oxygen gas is confined to a 6 L vessel at a pressure of 6 atm. Avogadro's number is 6.02214×1023 1/mol. The mass of an O2 molecule is 5.31×10-26 kg. Find the average translational
One mole of air at 340 K confined in a cylinder under a heavy piston occupies a volume of 5.4 L. The heat capacity of air under constant volume is 5/2R. Find the new volume of the gas if 3.2 kJ is t
Two test charges are located in the x-y plane. If q1 = -3.35 nC and is located at x = 0.00 m, y = 1.080 m and the second test charge has magnitude of q2 = 3.40 nC and is located at x = 1.00 m, y = 0
How much thermal energy must be transferred to the gas at constant pressure to raise the temperature to 470 K?
A closed surface encloses a net charge of 3.40uC . What is the net electric flux through the surface? If the electric flux through a closed surface is determined to be 1.30N*m2/C , how much charge i
A car starts from rest on a curve with a radius of 190 and accelerates at 0.500 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.50 ?
The water begins at a temperature of 16.0 °C and needs to be heated to 61.0 °C. If the area of the solar panels is 32.0 m2, what volume of water can be heated in one hour?
A jogger runs along a straight and level road for a distance of 5.0 km and then runs back to her starting point. It took the jogger 2.0 hrs to complete the round trip. For the round trip, which one
Is any work done when moving a charge along a field line? A. Yes, the field does positive work when a positive charge moves in the direction of the field, and negative work when this positive charge
If the mixture occupies a volume of 0.4 m3, find the masses of the saturated liquid present and the saturated vapor present.
How many hours are required for one dollar's worth of energy to be conducted through the wall?
If 2.65 kg of copper are heated and the specific heat is given as 107 kJ, what is the temperature difference required for these conditions? Please show your work and don't answer with a link.
A reaction was observed where the reaction rate constant at 423 degrees C was found to be 8.75x10^-8 m/s and 12.1x10^-8 m/s at 657 degrees C. Calculate the activation energy. No links and please sho
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 13.0 cm, giving it a charge of -19.7 µC. a(a) Find the magnitude of the electric field j
A very long uniform line of charge has charge per unit length 3.90 µC/m and lies along the x-axis. A second long uniform line of charge has charge -2.25 µC/m per unit length and is paral
A hollow, conducting sphere with an outer radius of 0.245 m and an inner radius of 0.200 m has a uniform surface charge density of +6.37*10^ -6 C/m^2. A charge of -0.350 µC is now introduced
The cylindrical imaging drum of a photocopier is to have an electric field just outside its surface of 3.00 105 N/C.