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The barrel of a compound microscope is 13.0 cm in length. The specimen will be mounted 1.00 cm from the objective, Determine the focal length of the objective lens
A swimming pool has dimensions 32.0 m ? 12.0 m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water. What is the force exerted by the water on the bottom
Ikjoo Yoo of the Tampa Bay Lightning has had his slap shot clocked at 102.1 mph (45.64 m/s). How much momentum is lost in the collision
Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation
An air-track glider attached to a spring oscillates between the 12.0cm mark and the 61.0cm mark on the track. find maximum speed of the glider
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein
one type of electromagnetic radiation has a frequency of 107.1 MHz another type has a wavelength of 2.12*10^-10m,and another type ofelectromagnetic radiation has photons with energy equal to 3.97*1
The electrical power output of a large nuclear reactor facility is 890 MW. It has a 34.0% efficiency in converting nuclear power to electrical. What is the nuclear power output in megawatts
If the average molecular mass of compounds in food is 47.5, how many molecules are there in 1.00 kg of food, Find the ratio of ion pairs to molecules
If 36.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 35.6 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
A 116 g Frisbee is 28 cm in diameter and has about half its mass spread uniformly in a disk, and the other half concentrated in the rim. What is the rotational inertia of the Frisbee
a certain element has only two naturally occurring isotopes one with 18 neutrons and the other with 20 neutrons. the element forms 1 charged ions when in ionic compounds. predict the identity of the
A 3.0 kg block rests on a 30° slope and is attached by a string of negligible mass to a solid drum of mass 0.80 kg, What is the coefficient of friction between block and slope
Assign the lines in the UV photoelectron spectrum of CO shown below and predict the appearance of the UV photoelectron spectrum of the SO molecule.
A 10g ball of clay is thrown horizontally at 30m/s toward a 1.5kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What impulse does the clay exert on the bloc
The mass of the carbon dioxide was 30.50 g, and the mass of the water was 14.98 g. What was the empirical formula of the hydrocarbon
Heather and Jerry are standing on a bridge 60m above a river. How much time elapses between the first splash and the second splash
What monatomic ions do selenium (Z = 34) and cesium (Z = 55) form? (Type your answer using the format [Cu]+ for Cu+ and [Cu]2+ for Cu2+.)
When a He atom absorbs a photon to form the excited configuration 1s^1 2s^1 (here called He*) a weak bond forms with another He to form the diatomic molecule HeHe*. Construct a molecular orbital des
Identify the elements that correspond to the following atomic numbers. label each as a noble gas ? a halogen ?an alkali metal? an alkaline earth metal? a transition metal? a lanthanide metal? or an
If 38.6 grams of hydrogen sulfide gas (H2S; MM = 34.08 g/mol) react with 36.3 grams of oxygen gas (O2, MM = 32.00 g/mol), what is the mass of sulfur dioxide (SO2, MM = 64.06 g/mol) gas produced
A small, 1.90-mm-diameter circular loop with R = 1.40×10?2? is at the center of a large 110-mm-diameter circular loop. What is the induced current in the inner loop
A platinum resistance thermometer has resistances of 230.0 omegacap.gif when placed in a 0°C ice bath and 236.8 omegacap.gif, What is the melting point of this substance
The following minerals contain silver. Rank the minerals in order of percent silver from least to greatest: miersite, AgI; hessite, Ag2Te; empressite, AgTe; and cerargyite, AgCl.
Calculate the relativistic kinetic energy of a 920 kg car moving at 33 m/s if the speed of light were only 45 m/s