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A He-Ne laser beam with an intensity of 1.00 103 W/m2 is incident from air to dense flint, Find the intensity of the beam transmitted into the dense flint
Find the perimeter of a regular pentagon inscribed in a circle and what is the average temperature in April - what is the average temperature?
The current in a coil changes from 3.1 A to 1.9 A in 0.52 s. what is the self-inductance of the coil
100g of ice at -10C is placed into 100g of warm water in an insulated container. Calculate the mass of the ice that remains when equilibrium is achieved
Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +3.7 m/s. Find the ratio m1/m2 of the masses of the particles
A uniform rod of mass 3.35×10?2kg and length 0.430m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the rod after the rings leave it
A lawn mower has a flat, rod-shaped steel blade that rotates about its center. The mass of the blade is 0.59 kg and its length is 0.50 m. to what height would the blade rise
a 100 sec long train (as measured at rest) moves in the x-direction with speed B=4/5. what is the position of the front of the train when the rear light is turned on, according to an observer on the g
Use the Ideal Gas Law in the form n=PV/RT. Remember to change all units to correspon to the values for the gas constant. R=0.0821 L*atm/mol*K.
Draw a structural formula of the R configuration of the compound shown below. Illustrate the stereochemistry about the chiral carbon using the "single up" (solid wedge) and "single down" (hashed-lin
Calculate the entropy of mixing if two moles of N2(g) are mixed with one mole O2(g) at the same temperature and pressure, assuming ideal behavior.
suppose that two objects attract each other with a gravitational force of 16 units. what would be the new force of attraction between the two objects
What type of reaction is occurring in each step. some categories include: Bronsted-lowry acid-base, precipitation or redox.
A rifle with a barrel length of 65 cm fires a 9 g bullet with a horizontal speed of 380 m/s. find resistive force does the wood exert on the bullet
What is the importance of implementing a quality improvement process to reduce the incidence of the safety issue and what would be a method of application of the quality process to the safety issue?
Using only your answer to a, and the following information: Delta H = -283.0 kJ/mol for the reaction: CO(g) +1/2 O2 (g) --> CO2 (g), determine delta H for the reaction: 4CO (g) + 2NO2 (g) -->
a skateboard with mass M rolls down a ramp, starting from rest. It takes a time T to roll a distance L along the ramp
For the process where wk(closedsystem)=778 ft*lbf/lbm and ?u= 0.75 Btu/lbm, determine the heat transferred per pound mass
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 1.5 N-s, what is the mass of the ball
In nucleophilic substitution reactions, what is the effect does using 1 degree, 2 degree, and 3 degree substrates have
A 5.78 cm long rod in the shape of a rectangular solid has cross section dimensions 28.7 mm x 42.6 mm. What is the current in the block
A battery's potential is measured to be 9 V outside of a circuit, the battery is placed in a circuit and it delivers 0.2 A of current. compute the internal resistance of the battery
For the following reactants, predict the products formed (if any) and write the balanced molecular equation, complete ionic equation and net ionic equation. NaHSO3(aq)+HI(aq)
A block on a 30 degree incline has an initial velocity of 3.5 m/s up the incline. How long until it returns to where it started from