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A hot air ballons is rising upward with a constant speeed of 3.00 m/s. When the ballon is 25.0m above the gound, the ballonist releases a sandbag. Air resistance is negligible in this problem. in this problem, choose the +y-axis to point up the page.
A) What is the initial velocity of the sandbag immediately before it was released?
b) To what maximum height does the sandbag rise?
c) What is the speed of the sandbag immediately before it hits the round?
Suppose you are at the earth's equator and observe a satellite passing directly overhead and moving from west to east in the sky. How far above the earth's surface is the satellite's orbit
Guns on World War II battleships could shell targets 15 km away. Find (a) the minimum launch speed needed to achieve that range and (b) the shell s flight time under these conditions
A lunar lander is landing on the moon from 5.0 m above the surface, with a downward speed of 0.8 m/s. With the engine off, it is in free fall. find the speed of the lander just before it hits the surface
A reversible engine takes in 555 joules per second and exhausts 482 watts. how much power does it produce
A very long solenoid with a circular cross section and radius r= 6.10 cm with n= 1.20E+4 turns/m has a magnetic energy density uB= 4.50 mJ/m3. What is the current in the solenoid
a proton traveling at 3.60 kms suddenly enters a uniform magnetic field of 0.750. t traveling at an angle of 55.0
Write and formally differentiate each term to get the second derivative with respect to X. Put it all into the equation as shown and you will see that there will be an infinite number of possible solutions, with progressively higher powers of x in..
When additional mass is added to the piston, the height of the piston decreases to 16.4 cm. Find out the new pressure applied by the piston.
Ignoring the heat lost along the length of the poker, find out the amount of heat conducted from one end of the poker to the other in 3.0 s.
A thin metallic spherical shell of radius 42.6 cm has a total charge of 6.95, What is the electric field at a distance of 14.4 cm from the center of the spherical shell
A portable electric drill produces 1.2 hp at full load. U 85% of the power provided by the 9.6-V battery pack is useful, what is the current flow?
A copper wire wrapped into a coil is hooked to a 3.00V battery and a switch. At t=0 the switch S is closed. At t=20 seconds the current in the circuit is 24mA. After a long time the current in the circuit is 50mA.
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