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The absorbance of seawater is 0.005 in a cuvette of length 1 cm. At the surface of the ocean, the light intensity is 1015 photons s-1cm-2. At what depth would this intensity be halved?
What would be the percentage change in volume of a cube of aluminum that measured 1.50 on a side when at the ocean surface. how much did the aluminum cube's volume change.
A ball is thrown straight up from the edge of the roof of a building. A second ball is dropped from the roof a time of 1.20 s later. You might ignore air resistance. If the height of the building is 20.1 m, what should the initial speed be of the fir..
An air-standard Diesel cycle has a compression ratio of 18.2. Air is at 27 ºC and100 kPa at the beginning of the compression process and at 1700 K at the end of theheat addition process. Using constant specific heats at room temperature, determine (a..
An elastic spring which has a cross-sectional area of 100m2. If the spring is pulled with a force of 150 Newton. Determine the tension experienced by the spring!
A spherical mirror has a focal length of 0.050 meter. An object of height 0.013 meter is placed 0.36 meter in front of the mirror. Find what is the height of the objects image
A charged particle moves in a uniform magnetic field of 0.579 T with a period of 3.15 × 10-6 s. Find its charge-to-mass ratio
A disk rotates 33.5 times in 75 seconds. What is its period and frequency
Electrons in a photoelectric-effect experiment emerge from a copper surface with a maximum kinetic energy of 1.10 eV. What is the wavelength of the light?
Coulomb’s law for electrostatic force between two point charges and Newton’s law for gravitational force between two stationary point masses, both have inverse-square dependence on the distance between the charges/masses.
explain what it means to have the measure value
A bat moving at 15.0 m/s emits a high-frequency sound as it approaches a wall that is 25.5 m away. how far away is it when it receives the echo
calculate the fraction of which is submerged when the cylinder floats in alcohol. Fraction of Vwood submerged.
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