A diver is located 63 m below the surface of the ocean (the density of seawater is 1025 kg/m3). To raise a treasure chest that she discovered, the diver inflates a plastic, spherical buoy with her compressed air tanks. The radius of the inflated buoy is 0.41 m. If the treasure has a mass of 215 kg, what is the acceleration of the buoy and the treasure chest when they are tethered together and released? The chest is 22 cm × 53 cm × 11 cm in size. Neglect the tether’s mass and the mass of the buoy (and air in it) because these are much smaller than the mass of the treasure chest. Neglect the tether’s volume as well. The effect of "water resistance" can also be neglected when the buoy is just released (it will become non-negligible as the speed increases, but you only have to calculate the initial acceleration).When the buoy and the treasure reach the surface and come to rest, what fraction of the volume of the buoy is submerged? The buoy expands to 0.82 m in radius when it reaches the surface due to the reduction in the external pressure acting on the buoy.
Answers: 2
Physics, 22.06.2019 05:20, cwsmith8026
Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to. in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?
Answers: 1
Physics, 22.06.2019 12:30, jaejaeJae941
Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d
Answers: 1
A diver is located 63 m below the surface of the ocean (the density of seawater is 1025 kg/m3). To r...
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