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1. A jet boat traveling at 12 m=s takes in 0.08 m3=s of water and discharges it at 24 m=s faster than the boat's speed. Estimate the thrust produced and power required.
2. The deflector of Fig. 4.4 changes the direction of a 60 mm · 24 cm sheet of water with V1 ¼ 30 m=s such that a ¼ 60o. Calculate the force components of the water on the deflector if(a) it is stationary(b) it moves away from the jet at 20 m=s(c) it moves into the jet at 20 m=s
You toss a ball up in the air with an initial velocity of 8 m/s (immediately after leaving your hand). Use gravity = -9.8 m/s2. What is its acceleration at its peak height
The primary coil of a transformer makes 240 turns around the iron core and the secondary coil of that transformer makes 80turns. determine what is the secondary voltage
A ball is thrown vertically downward from the top of a 31.3-m-tall building. What is the speed of the ball as it passes the top of the window
Find out the coefficient of sliding friction
A 0.300 kg hammer is moving horizontally at 6.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
The focal length of a simple magnifier is 7.00 cm. Suppose the magnifier to be a thin lens placed very close to the eye. How far in front of the magnifier must an object be placed if the image is formed at the observer's near point, 25.0 cm in front ..
Two charges are located on the x axis. One of the charges (q1=+8.5µC) is at x1=+3.0 centimeter and the other (q2= -21µC) is at x1=+9.0 centimeter. Determine the net electric field both magnitude and direction at x= 0 cm
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
An archer shoots an arrow with a velocity of 45m/s at an angle of 50 degrees with the horizontal. An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the least initial speed required to ..
a 4-g bullet is fired into a 1.5-kg block that is resting on a frictionless surface and is attached to a spring with
a drawbridge with a weight of 5000 n is supported by a hinge and rope and is in static equilibrium. the length of the drawbridge, l, is 5 meters, what is the tension force the rope provides
two charges e and -e are a distance of 0.620 nm apart in an electric field e that has a magnitude of 3.55 knc and is
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