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A pilot of an air plane travelling at 130km/hr wants to drop food supplies on a patch of land 250m below. The package has to be dropped so that it reaches the people below when the plane is directly over head.
a) What is initial horizontal velocity (m/s) when the package is dropped?
b) what is the initial vertical velocity when package is dropped?
c) how many seconds before should the package be dropped if it is to each the people below when the plane is directly overhead.
A bird watcher meanders through the woods, walking 0.506 km due east, 0.736 km due south, Determine the magnitude (in kilometers) of the bird watcher's displacement
What is the speed of the large cart after the collision. A 345 g chunk of gold at 98.5 degrees Celsius is dropped into a 656 g of water at 22.5 degrees Celsius. What will final temperature of the gold be after the system reaches equilibrium.
A movie camera with a (single) lens of focal length 75.0 mm takes a picture of a 177 cm high person standing 30.0 m away
a person moves a full sam's club shopping cart mass=80.0 kg from rest to a velocity of 1.30 m/s over a distance of 1.80 meters to secure a spot in check out line. Determine the change in the chart's momentum
The second harmonic of an open organ pipe has the same frequency as the first overtone of a closed pipe. find the length of each pipe
150 g of ice at -10.5 oC is raised to the melting point and then raised to 76.0 oC. How much heat is added to the system
Consider a square window of side L=1.00m that lies in the plane of the blackboard at the front of the classroom. calculate the electric flux through the window
Suppose a manufacturing plant has an average sound intensity level of 97.0 dB created by 25 identical machines. Find the total intensity created by all the machines
A 32.0 kg hammer strikes a steel spike 2.70 cm in diameter while moving with speed of 24.0 m/s. The hammer rebounds with speed 11.0 m/s after 0.110 s. What is an average strain in the spike all through the impact.
A 55 kg person is riding in a hot air balloon and scale shows this person's weight too be 549N. the acceleration of gravity at the location of the balloon is known to be 9.79 m/s/s.
A satellite moves in a circular orbit around Earth at a speed of 5047 m/s. Determine the satellite's altitude above the surface of Earth
A cat runs along a straight line (the x-axis) from point A to point B to point C. The distance between points A and C is 5.00 m, distance between points B and C is 10.0 m, and the positive direction of x axis points to the right. The time to run f..
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