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(a) Find the angular speed about the polar axis, as well as the translational speed and acceleration of a point on the earth’s surface at alatitude of 45°N.(b) How do these values compare with the corresponding values for a point on the equator? (The radius of the earth is6.38 ×106 m.)
What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if = 0.300 ?
A typical microwave oven has a power consumption of about 1200 W. Estimate how long it should take to boil a cup of water in the microwave, How does this estimate correspond to everyday experience
A Venturi meter measures fluid speed in a pipe. A constriction (of cross-sectional area A2) is put in a pipe of normal cross-sectional area A1 (A1 = 2A2). Find the ratio of the flow speeds
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of current through the torso of a person in 2.1 ms, How much charge moves during this time
Calculate the efficiency of a fossil-fuel power plant that consumes 450 metric tons of coal each hour to produce useful work at the rate of 900 MW
1000 kg of seawater at 17.5 C and salinity of 3 percent is mixed with 500 kg of pure water with initial temperature 5 C, Determine the final temp C and salinity % of the mixture?
A battery is connected in series with a R = 0.31 ? resistor and an inductor, as shown in the figure below. The switch is closed at t = 0. The time constant of the circuit is ? = 0.20 s, and the maximum current in the circuit is I = 7.9 A.
If the laser light wavelength is 1062 (this corresponds to a Neodymium-YAG laser), how many wavelengths are found within the laser pulse
A hollow sphere of inner radius 6.2 cm and outer radius 7.2 cm floats half-submerged in a liquid of density 775 kg/m3. What is the mass of the sphere
Oxygen, modeled as an ideal gas, is in a container and has a temperature of 63.9°C. What is the rms-average magnitude of the momentum
A 37.8 kg box initially at rest is pushed 5.27 m along a rough, horizontal floor with a constant applied horizontal force of 81.3836 N. Find the work done by the friction
A positively charged oil drop of mass is injected into a region of uniform electric field between two oppositely charged, horizontally oriented plates spaced 16 cm apart. what is the magnitude of the charge on the drop
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