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The ski boat's jet propulsive system draws water in at point A (at the middle of the bottom of the boat) and expels it at B (at back of boat) at 80ft/s relative to the boat. Assume that the water drawn in enters with no horizontal velocity relative to the surrounding water. The maximum mass flow rate of water through the engine is 2.5 slugs/s. Hydrodynamic drag exerts a force on the boat of magnitude 1.5v lb, where v is the boat's velocity in feet per second. Neglecting aerodynamic drag, what is the ski boat's maximum velocity?
a converging lens f 13.0 cm is held 7.10 cm in front of a newspaper the print size of which has a height of 1.80 mm.
A positively charged particle of mass 8.00 10-8 kg is traveling due east with a speed of 30 m/s and enters a 0.26-T uniform magnetic field. obtain the magnitude of the magnetic force acting on the particle
As an airplane taxies on the runway with a speed of 15.0 m/s, a flight attendant walks toward the tail of the plane with a speed of 1.42 m/s. What is the flight attendant's speed relative to the ground
Estimate the initial speed of that car assuming a level road.What would be the equilibrium temperature when a 252 block of copper at 275 is placed in a 136 aluminum calorimeter cup containing 807 of water at 14.90.
A block of mass 12-kg slides from rest down a frictionless 34° incline and is stopped by a strong spring with k = 1.0x 10^4 N/m. The block slides 3 m from the point of release to the point where it comes to rest against the spring.
State and explain magnetic dipole moment µ of a coil of number of turns N and area A carrying current i
question1a jet plane lands with a velocity of 112 ms and can accelerate at an utmost rate of -5.50 ms2 as it comes to
A system of four particles made of 20 g at (4,0), 30 g at (0,6), 25 g at (-4,3) and 40 g at (-3,2) in the xy-plane, rotate about the z-axis through the centre of the coordinate system. The coordinates are given in units of centimetres. Calculate t..
an artillery shell is fired with an initial velocity of 350 m/s at 50.0 degrees measured from the horizontal. it hits the side of a mountain 35.0 seconds later. What are the x and y coordinates of the shell where it explodes, if the coordinates fr..
A potter's wheel having a radius 0.53 m and a moment of inertia of 14.9 kg · m2 is rotating freely at 46 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
Two equally charged particles are held3.2x10 -3 m apart and then released from rest. determine the mass of the second particle
Consider 5.00 mol of liquid water. What volume is occupied by this amount of water? The molar mass of water is 18.0 g/mol
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