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A proton is released from rest in a uniform field of magnitude +1.41e5 N/C. Find the speed of the proton after it has traveled 4cm and 40 cm.
A stone of mass 0.3kg is tied to a string of length 0.75m and is swung in a horizontal circle with speed v. The string has a breaking-point tension of 50N. What is the largest value v can have witho
calculate the probability that the particle will be located in the range 0.5a less than or equal x less than or equal 0.75a
Analysis of a reaction mixture showed that it had the composition. Calculate the reaction quotient Qc .
A rod supports a 2.35-kg lamp. a) What is the magnitude of the tension in the rod? b) Calculate the components of the force that the bracket exerts on the rod.
The resultant displacement has a magnitude of 170 cm and is directed at an angle of 65.0° to the positive x axis. Find the magnitude and direction of the second displacement.
The temperature is -34°C. What is the change in volume of the balloon as it ascends from 1.00 atm to a pressure of 240. torr?
A particular brand of gasoline has a density of 0.737 g/mL at 25 °C. How many grams of this gasoline would fill a 12.5gal tank?
From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building
When 5.00 g of FeCl3 . xH20 are heated, 2.00 g of H20 are driven off. Find the chemical formula and the name of the hydrate.
A street lamp weighs 170 N. It is supported by two wires that form an angle of 150° with each other. The tensions in the wires are equal. What is the tension in each wire supporting the street l
Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C · g.
A race car has a mass of 706 kg. It starts from rest and travels 39.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?
Neutrons were discovered in 1932 more than 10 years after the existence of isotopes was confirmed. What property of electrons and protons led to the discovery? Suggest a possible reason my neutrons
A sledge loaded with bricks has a total mass of 18 kg and is pulled at constant speed by a rope inclined at 20 degrees above a horizontal surface. The coefficient of kinetic friction between the sl
A generic salt, AB, has a molar mass of 249 g/mol and a solubility of 2.70 g/L at 25 degrees Celsius. What is the Ksp of this salt at 25 degrees Celsius?
A Carnot engine has an efficiency of 35%. If 325 J of heat are released into the environment every cycle, what must be the amount of heat absorbed by the high temperature reservoir
The ladder of length, l=15m and mass of 35kg rests against a smooth frictionless wall. The coefficient of friction between the ladder and ground is 0.6 and the ladder makes an angle, theta with the
Determine the percent yield for the reaction. Assume a constant temperature and that no other reactions occur other than the one indicated.
A place kicker must kick a football from a point 36.0 m (about 39.0 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a spee
A house is 100.0 ft long and 46 ft wide, and has 8.0 ft high ceilings. What is the volume of the interior of the house in cubic meters and cubic centimeters?
The density of titanium metal is 4.51 g/cm 3 at 25 ° C . What mass of titanium displaces 65.6mL of water at 25 ° C ?
The copper is drawn into wire whose diameter is 8.50mm , how many feet of copper can be obtained from the ingot? The density of copper is 8.94 g/cm 3 .
Find the magnitude of the acceleration for an electron in a uniform electric field with a magnitude of 122 N/C.
If the elastic limit of steel is 5.0 multiplied by 108 Pa, determine the minimum diameter a steel wire can have if it is to support a 70 kg circus performer without its elastic limit being exceeded.