What is the needed force
A 15-kg steel gas tank holds 300 L of liquid gasoline, having a density of 800 kg/m3. If the system is decelerated with 6 m/s2 what is the needed force?
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Assume that the speed of the water in the reservoir is zero and that the water flow is steady. Ignore both air resistance and the height difference between the reservoir and the muzzle.
A tornado rips off a 100 m2 roof with a mass of 1000 kg. What is the minimum vacuum pressure needed to do that if we neglect the anchoring forces?
calculate the fractional intensity I/IMAX at a point on the screen 4.10mm from the center of the principal maximum.
A helium neon laser emits light that has a wavelength of 632.8 nm. The circular aperature through which the beam emerges has a diameter of 0.800 cm. Estimate the diameter of the beam 20 km from the lasear.
A researcher wishes to know, with 98% confidence, the percentage of women who wear shoes that are too small for their feet. A previous study conducted by the Academy of Orthopedic Surgeons found that 80% of women wear shoes that are too small for
A vertical hydraulic cylinder has a 125-mm diameter piston with hydraulic fluid inside the cylinder and an ambient pressure of 1 bar. Assuming standard gravity, find the piston mass that will create a pressure inside of 1500 kPa.
Given that 30% of a community is Hispanic, when randomly selecting a jury of 12 persons, what are the following probabilities? (Hint: a binomial distribution).
A charged capacitor with C = 630uF is connected in series to an inductor that has L = 0.400H and negligible resistance. At an instant when the current in the inductor is i = 1.40A, the current is increasing at a rate of di/dt = 89.0A/s During the
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