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Starting from its nest, an eagle flies at constant speed for 4.0min due east, then 4.2min due north. From there the eagle flies directly to its nest at the same speed. How long is the eagle in the air?
A dynamite blast at a quarry launches a rock straight upward, and 2s later it is rising at a rate of 15m/s. assume air resistance has no effect on the rock, analyse its speed (a) at launch and (b) 5s after launch.
A hammer is hanging by a light rope from the ceiling of a bus. The ceiling of the bus is parallel to the roadway, What is the acceleration of the bus
One type of slingshot can be made from a length of rope and a leather pocket for holding the stone. Determine the angular speed of the stone at the moment of release
In soccer, a speed record was set for kicking a soccer ball at 43m/s. If the soccer player kicked the ball from ground level at an angle of 30° from the horizontal, what would be the flight time of the soccer ball? Assume that air resistance is ne..
Two spherical objects have a combined mass of 200. The gravitational attraction between them is 8.01×10-6 while their centers are 21.0 apart.
A volleyball play jumps into the air by first lowering his body by. .4 m and then accelerating by straightening his legs rapidly. what is the force exerted by his feet on the floor
A 0.015 kg bullet traveling horizontally at 400.2 m/s strikes a 4.1 kg block of wood sitting at the edge of a table. The bullet is lodged into the wood. If the table height is 1.2 m, how far from the table does the block hit the floor.
What is the minimum diameter mirror on a telescope that would allow you to see details as small as 4.85 km on the moon some 384000 km away
An initially stationary 2.0 kg object accelerates horizontally and uniformly to a speed of 20 m/s in 1.9 s. (a) In that 1.9 s interval, how much work is completed on the object by the force accelerating it.
A lightweight electric car is powered by ten 12-V batteries, What must be the power of the electric motor if the car is to travel at a speed of 90 km/h
A 3.5 mL syringe has an inner diameter of 5.0 mm, a needle inner diameter of 0.24 mm, and a plunger pad diameter, The nurse empties the syringe in 2.3 s. What is the flow speed of the medicine through the needle
A spinning object has a moment of inertia of 1.6 kg*m2. It is rotating at a rate of 1rad/s. If the moment of inertia increases to 3 kg*m2, what is the new rotational velocity
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