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A 40 kg kid wants to utilize a large plastic tub as a boat in a swimming pool. The tub has dimensions 0.75 m long by 0.5 m wide by 0.6 m high. a.) Will this work? b.) Where will the water line be? c.) State any assumptions you might need to make d.) Describe how a metal boat that is denser than water can float.
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what is the molar mass of air if the the density is 1.00g l -1 at stp? please show the work to solve this
A light ray in air is incident on a water surface at an angle of 27.7? with respect to the normal to the surface. What is the angle of the refracted ray relative to this normal
The Earth (5.98 x 10^24 kg) and the Moon (7.35 x 10^22) kg are separated by an average distance of 3.84 x 10^8 m
for a vibrating string fixed at both ends what is the relationship between the length of the string and the wavelength
a 7-cm diameter vertical water jet is injected upwards by a nozzle at a speed of 15 ms. determine the maximum weigth of
The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air
A 2 kg rock is released from rest at a height of 29 m. neglect air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights: 20m; 15m; 5m; 9m.
Suppose the solar insolation is 850 W/m2 and you can collect 20% of the energy that fall on the surface of a solar hot dog cooker. If you need 240 W to cook a hot dog, what is the minimum area required?
q1. a boat crosses a river of width 115 m in which the current has a uniform speed of 1.39 ms. the pilot maintains a
You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams, What is the metal weights density
A thin rod has a length of 0.25 meter and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. evaluate what is the angular velocity of the rod
Light enters a 10 cm thick, parallel face, glass block at normal line drawn through the block. The angle of incidence for the light is 30 degrees. What is the index of refraction of the prism
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