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The hydrogen ion concentration,[H+], in a certain cleaning compound is [H+]=3.6*10^-12. Use the formula pH=-log[H+] to find the pH of the cleaning compound. Round to the nearest tenth.
in a football game a kicker attempts a field goal. the ball remains in contact with the kickers foot for 0.0593 s
a uniform billiard ball with radius r 7.00 cm rests on a billiard table. at one moment the ball received a hit from the
The work function of an element is 3.2 eV. Photons of a certain energy are found to eject electrons with a kinetic energy of 2 eV. What is the speed of the ejected electrons
In a photocell, ultraviolet light provides sufficient energy to some electrons in barium metal to eject them from the surface at high speed. See Fig. 23-36. To gauge the maximum energy of the electrons, another plate above the barium surface is kept ..
In 1916 Milikan used measurements of the kinetic energy of photoelectrons to detemine plancks constant
A 100.0 cm3 total volume of an oven-dry soil required 40.0 g of water to saturate it. Assume that the soil does not swell upon wetting. Find its porosity
A soccer player kicks the ball toward a goal that is 21.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
Consider a string with linear mass density 0.1189 g/cm and length 115.5 cm oscillating as shown in the figure. The tension on the string is 17.31 N. At what frequency is the string vibrating?
Monochromatic light of a given wavelength is incident on a metal surface. However, no photoelectrons are emitted. how should the incident light be adjusted
Two particles are at the same point at the same time, moving in the same direction. Par-ticle A has an initial velocity of 7.7 m/sandnan acceleration of 2.5 m/s2. Particle B has an initial velocityof 3.4 m/s and an acceleration of 5 m/s2.
A solid, horizontal cylinder of mass 10.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical axis through its center. Determine the final angular speed of the system
A high performance solar panel is 24" by 54". Its maximum power output is 100W when placed under full sunlight. What is the efficiency of this panel
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