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A fisherman fishing from its highest to its lowest point. He also estimates that the distance between adjacent wave crests is 48 m. What is the speed of the waves going past the pier?
A small sphere of mass m and radius r slides down a smooth stationary large sphere of radius R under the action of gravity from a position of rest at the top. Find the value of theta at which the particle falls off
An 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting the 100N force for the 0.50 s it takes him to straighten his arms.
A diverging lens with a focal length of -14 cm is placed 10 cm to the right of a converging lens with a focal length of 18 cm. Where will the final image be located
An airplane, diving at an angle of 53° with the vertical, releases a projectile at an altitude of 730 m. How far did the projectile travel horizontally during its flight
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 33.5 m/s. It then flies a further distance of 46.9 km and its velocity is 43.1 m/s. Find the airplane's acceleration and calculate how much t..
Find the kinetic energy of a 81.0-kg spacecraft launched out of the solar system with speed 146 km/s by using the classical equation K =(1/2)mu^2
A medium sized home may have a roof with a surface area of 120m2. Find the total amount of solar energy incident on the roof in one day
You slide a box of books at constant speed up a 30 degree ramp, applying a force of 160 N directed up the slope. What is the mass of the box
questionhow to find the length? a shell and tube heat exchanger is to be designed to heat 2.5 kgs of water from 15 to
vector A and vector B have scalar product -3.00 and their vector product has magnitude 5.00. What is the angle between these two vectors
A professor's office door is 0.90m wide, 2.2m high, 4.2cm thick; has a mass of 28kg , and pivots on frictionless hinges. What is the moment of inertia of the door
A 97.1-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.67 rad/s. Find the angular velocity of the platform with its load
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