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When a 58 g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 38 cm. What is the magnitude of
The solubility of KNO3 is 155g per 100g of water at 75Cand 38.0g at 25C. What mass in grams of KNO3 will crystallize out of the solution if exactly 750g of its saturated solution at 75C is c
A car speeds along the curved exit ramp of a freeway. The radius of the curve is 86 m. A 70 kg passenger holds the arm rest of a car door with a 220 N force to keep from sliding across the front sea
A 0.050-kg ball at the end of a string rotates at constant speed in a vertical circle with a radius of 0.23 m. What is the maximum speed of the ball so that the tension is not to exceed 12 N?
Carbon dioxide goes from a solid to a gas at -78 degreesCelsius. The molar heat of sublimation is 25.2 kJ/mol. In one experiment, 20.5 g of dry ice is placed in an insulated,isolated container with
A potential difference of 30.0 V is applied across a wire of cross-sectional area 5.01 mm^2 and length 929 km. The current passing through the wire is 2.311×10^-3 A.
A package is sliding from rest down an incline at an angle phi, and encounters a rough section that starts at height 2h and ends at height h. The starting point for the package is at height xh, and
A closed 5.00 L flask contains 3g of mercury. The system is all atroom tepmerature of 25 degree C. By how many degree should we increase the temperature of the flask to triple the mercury vaporpres
How much heat in kJ is needed is to convert 826 g of ice at -10degrees Celsius to water at 100 degrees Celsius? The specific heatsof ice and water are 2.03 and 4.184 J/g x degrees Celsiusrespectivel
A uniformly charged sphere had a volume charge density ρ and a radius R. Find the distance from the center of the sphere where the electric field has the same strength as the field at radius r =
A student puts his hand in the path of a jet of steam with a temperature of 100 °C. By the time he pulls his hand out of the jet of steam 0.51 g of water have condensed. How many joules were abs
A cannonball is fired from the roof of a building, with the cannon's muzzle 54.0 m above the ground, at a muzzle speed of 95 m/s and an angle of 30.0 degrees above the horizontal. Calculate the hori
A cylinder contains 2 lbm of an ideal gas wth a gas constant Rof 53 ft lbf/lbm oR. The gas is initially at agauge pressure of 30 psi and temperature 100 oF.
The force on a particle is directed along an x axis and given by F = 0.99(x/5.6 - 2.2) where x is in meters and F is in Newtons. Find the work done by the force in moving the particle from x = 0 to
Lauryl alcohol is obtained from coconut oil and is used to make detergent. A solution of 5.00 g of lauryl alcohol in 0.100kg of benzene freezes at 4.10C. What is the approximate molarmass of the lau
Consider a person on the Moon who launches herself into a standing broad jump at 45 degrees. the average force generate during launching is F= 2W, and the distance over which this force acts is 70 c
While taking photographs in Death Valley on a day when the temperature is 51.0°C, Bill Hiker finds that a certain voltage applied to a aluminum wire produces a current of 1.000 A.
A mixture of ethanol and 1-propanol behaves ideally at 36C andis in equalibrium with its vapor. If the mole fraction of ethanolin the solution is 0.50, calcualte the mole fraction of the vaporphase
A bean is fired through a pipe by compressing a spring. The bean just clears the pipe of length l if the spring is compressed by distance d. How much should the spring be compressed for the bean to
Which substance has the greater intermolecular forces? Explain. Which substance has the higher vapor pressure at 250 C?c. Which substance will have the higher boiling point?
What is the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an angular speed of 15.6 rev/s?
Sucrose, the sugar extracted fromsugarcane and sugar beets, is an organic compound that contains 12carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms permolecule.
The helicopter and the sensor both move only in the horizontal direction and have a horizontal acceleration of magnitude 2.60 m/s2. Ignoring air resistance, find the tension in the cable towing the s
A 1347-kg submarine rises straight up toward the surface. Seawater exerts both an upward buoyant force of 14,526 N on the submarine and a downward resistive force of 977 N. What is the submarine's a