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A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.00 s later. Find the depth of the well if the air temperature is 14.0°C. meter.
A bottle of wine contains 12.5% ethanol by volume. The density of ethanol is 0.789 g/cm3. Calculate concentration of ethanol in wine in terms of mass percent and molality.
Draw the payoff trees of each assets
A diver pushes off horizontally from the top of a vertical cliff that is 40.0 m high from water surface below. How long is the diver in the air
a) Use Planck's equation (E = hv) to determine the energy, in kilojoules per mole, of radiation of frequency 2.12×10^14 (s^-1). b) What electron transition in a hydrogen atom, starting from the orbit 10, will produce light of wavelength 380 nm
Discuss some of the advantages and disadvantages of the WHO protocol versus the single test. Give the assumptions that you have made in carrying out calculations.
How many tons of ice cream will the factory produce? how much does it pay in emission fees? what are its profits?
One has a dipole of 0 D, and the other has a dipole moment of 2.95 D. Draw the structure of the stereoisomer with dipole moment of 2.95 D.
Is it possible to have homogeneous binary liquid solution whose viscosity is higher or lower than that of either of the two component liquid? what conclusions would you draw about the nature of intermolecular interactions in such a mixture
a 3.8 kg block is accelerated from rest by a compressed spring of spring constant 650 N/m. What is the original compression distance of the spring
Write an e-mail that will impress your supervisor. Make sure the subject line is concise and descriptive or what the memo is about.
The electric field at 0.50 m away from the center of a thin metallic spherical shell of radius 0.30 m is - 400×10^3 V/m. the charge density at the outer surface of the sphere is:
A marble (radius 1.5 cm and mass 5.0 g) rolls without slipping down a ramp of vertical height 26 cm. What is the speed of the marble
A mass M of a liquid at a temperature T1 is mixed with an equal mass of the same liquid at a temperature of T2. The system is thermally insulated. If C is themperature-independent specific heat of that liquid
A converging lens has focal length 10 cm. How far from the lens should the object be placed to form a virtual, upright image twice as large as the object
The horizontal and vertical components of the initial velocity of a football are 20m/s and 30m/s respectively. What horizontal distance does the football travel during flight
A positive charge of q1 is located 4.40 m to the left of a negative charge q2. The charges have different magnitudes. How far to the left of the negative charge is one spot
a ball is thrown upward from the roof of a building, passes the roof going down three seconds later, how fast did the ball strike the ground
A metal rod 6.00 m long is held in a horizontal position. what is the torque exerted on the rod by the tension in the rope
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 7130 m/s, what is the magnitude of the average current in this region
A projectile of mass 1.8 kg approaches a stationary target body at 4.8 m/s. What is the magnitude of the momentum of the target body after the collision
Andrew jumped on a rocket, sending it straight up, and timing its motion. He sees that the rocket goes by the top of the library after .40 seconds, How fast was the rocket going at lauch
A 0.410-kg ball is dropped from rest at a point 4.30 m above the floor. what is the impulse of the net force applied to the ball during the collision with the floor
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