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What is the CAS number for 6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone
A lead ball is dropped into a lake from a diving board 4.80 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the wat
Determine the mass in grams of NH3 formed from 1.34 moles of nitrogen
A 20,000 kg railroad car is traveling at 3 m/s when it collides and couples with a second, identical car at rest. What is the resulting speed of the combined cars?
Ethane C2H6 burns in oxygen. What are the products of reaction. Write the balanced equation for the reaction
A fisherman and his rowboat have a combined mass of 125 kg. Standing in the motionless boat in calm water, he tosses out a 5 kg rock from the back of the boat, with a velocity of 5 m/s. What will be
A 72.0 kg base runner begins his slide into second base when he is moving at a speed of 4.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is ze
A high-flying Concorde passenger jet displays its Mach number on a screen while cruising at 3000 km/h to be 1.8. What is the speed of sound at that altitude?
A sample of 6.022 g of CH4 is enclosed in a 12 L container at 402 K. What is its pressure in atmospheres?
How fast will the police officer be traveling at this time.
A charge of -6.0 nC is at the origin and a second charge of 8.0 nC is at x = 5.00 m. Find the magnitude and direction of the electric field halfway in between the two charges.
The centerline of the suction pipe is 330mm below the discharge pipe. For Q=3.42m3/ min of water, calculate the head developed by the pump.
What is the wavelength (in meters) of a proton ({rm{mass}} = 1.673 times 10^{ - 24} {rm g}) that has been accelerated to 30% of the speed of light?
What is the equation for the reaction of cyclohexene wtih MnO4- to form 1,2-cyclohexanediol and MnO2 in a basic medium?
Identify the oxidizing agent and the reducing agent for rm Ba(s) + Cl_2(g) to BaCl_2(s)?
How many grams of potassium permanganate are needed to decolorize 1 g of 2-pentene in basic solution?
A box weighing 77.0N rest on a table. a rope tied to the box runs vertically upward over the pulley and a weight is hung from the other end. Determine the force that the table exerts on the box if t
Gallium has an atomic mass of 69.7 amu. In a typical sample, 60.4% of Ga exists as Ga-69 (68.9257 amu). What is the identity and the atomic mass of the other isotope?
The plane releases the "care package" that falls to the ground along a curved trajectory. Ignoring air resistance, if all other factors remain the same, determine the time required for the package t
A shell traveling with speed Vo exactly horizontally and due north explodes into 2 equal mass fragments. One fragment traveling vartically up with speed V0 what is the velocity of the other one?
A model rocket blasts off and moves upward with an acceleration of 13 until it reaches a height of 27 , at which point its engine shuts off and it continues its flight in free fall. What is the maxi
(a) How high above the ground is the highest point that the skateboarder reaches? (b) When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp?
A 0.195 kg projectile is fired with a velocity of +715 m/s at a 2.00 kg wooden block that rests on a frictionless table. The velocity of the block, immediately after the projectile passes through it
A cue ball (mass = 0.160 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.90 N·s to the ball. The ball then slides along