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On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The acceleration free-fall on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 21m/s at an angle 26? above the horizontal.
a) How long was the ball in flight?
b) How far did it travel?
c) How much farther would it travel on the moon than on earth?
An ideal gas expands at a constant total pressure of 2.5 atm from 3.45 L to 6.70 L. calculate the total work done by the gas in the process
an electron is shot directly toward the center of a large metal plate that has surface charge density -1.00 × 10-6 C/m2. how far from the plate must the launch point be
A 965-kg satellite orbits the Earth at a constant altitude of 94-km. What is the change in the system's potential energy
A copper bar 2.5 m long has a circular cross section of radius 2 cm. One end is kept at 80 oC and the other end is kept at 0 oC. what is the thermal current in the copper bar
A jetliner can fly 5.32 hours on a full load of fuel. Without any wind it flies at the speed of 220 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip.
A solid block of mass m2 = 0.5 , at rest on a horizontal frictionless surface, is linked to a relaxed spring (with spring constant k = 150 whose other end is fixed. Another solid block of mass m1 = 2.4 and speed v1 = 2.2 collides with the 0.50 blo..
To push a 56.0-kg crate up a frictionless incline angled at 34.0° to the horizontal, a worker exerts a force of 484 N parallel to the incline. What work is done on the crate by the worker
The basic concepts in optics.
A string %uFB01xed %uFB01xed at both ends is 1 m long. It resonates in its second harmonic at a frequency of 55 Hz. What is the speed of transverse waves on the string
Eight lights are connected in parallel to a 110 V source by two leads of total resistance 2.20. If 240 mA flows through each bulb, what is the resistance of each.
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
The magnetic field perpendicular to a circular wire loop 11.2cm in diameter is changed from +0.50Tto -0.33T in 130ms, In what direction does the induced current flow?
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