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A boat crosses a river with constant velocity with respect to the water, v=0.3 m/s. The boat%u2019s velocity is directed perpendicular to the shores of the river. River width is b=63 m. River flow is not constant and changes across the river as a parabolic function \(u=u_{0}-4(u_{0}/b^{2})(x-(b/2))^{2}\), where x is the distance from the shore and u0 = 5 m/s.
Find the drift s of the boat along the river when it reaches the opposite shore.
A bungee jumper with mass 63 jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 47. He finally comes to rest 21.00 below the level of the bridge.
When a patient is being fitted with contact lenses, the curvature of the patient's cornea is measured with an instrument known as a keratometer. what is the radius of curvature of the patient's cornea
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.60 m above. The brother's outstretched hand catches the keys 1.20 s later.
A person takes in a breath of -2 degrees C air and holds it until it warms to 37.5 degrees C. Determine the work done by the air on the lungs
The end milling cutter has two teeth and its diameter = 15.0mm. Find out the feed rate and time to complete the cut.
A spherical silver ball of radius 1 foot is set on a concrete pedestal as a lawn ornament. How big is the reflection of the hummingbird
Two rays travelling parallel to the principal axis strike a large plano-convex lens having a refractive index of 1.60. find the difference in positions where they cross the principal axis
A block-spring system oscillates with amplitude of 3.70 cm. The spring constant is 250 N/m and the mass of the block is 0.500 kg.
What is the separation between the two atoms in this molecule if we model them as point masses? The mass of hydrogen is 1.67* 10^-27 kg and nitrogen is 2.33*10^-26 kg
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, compute the change in the Helmholtz potential
A bolt on an engine is to be tightened with a maximum torque of 75 Nm. If a wrench has a length of 0.30 m, what is the maximum force perpendicular to the length
q1. a positively charged particle of mass 6.00 10-8 kg is travelling due east with a speed of 25 ms and enters a 0.46 t
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