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Before landing astronauts on the moon, the Apollo 11 space vehicle was put into orbit around the moon. The mass of the vehicle was 9,979 kg and the period of the orbit was 119 min. The maximum and minimum distances from the center of the moon were 1,861 km and 1,838 km. Calculate the mass of the moon according to these data.
Calculate the ratio of masses (moon to earth).
Calculate the ratio of densities (moon to earth).
Maddox takes off on his jet ski so they have a combined mass of 319.86kg. The skis have a thrust of 982.13N, What is Maddox's top speed
You throw a ball horizontally off a roof. the time until it lands is determined only by The height of the roof and it's initial speed
A construction worker accidentally drops a brick from a high scaffold. What is the velocity of the brick after 4.0 s
The escape speed from a very small asteroid is only 26 m/s. If you throw a rock away from the asteroid at a speed of 39 m/s, what will be its final speed.
Use the following values for mass and charge: an electron has mass me = 9.11x10-31 kg and charge -e, a proton has mass mp = 1.67x10-27 kg, What is the kinetic energy of the electron
A +6.00-µC charge is moving with a speed of 8.80 104 m/s parallel to a very long, straight wire. Find the magnitude and direction of the force on the charge
A photoelectric experiment using a cesium metal surface produces stopping potentials of 0.95V and 0.38V using light with wavelengths of 435.8nm and 546.1nm, respectively. find the threshold frequency
In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots, Find the direction of the balloon's inital velocity
As you may have learned when studying the properties of thermal energy, building contractors often install double-glazed windows to prevent thermal energy (\"heat\") from entering/exiting the building, find the shift in path ?x as the light enters ..
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.6 x 10-7 C/m2, the plates are separated by a distance of 1.4 x 10-2 m. How fast is the electron moving just before..
A speed skater moving across frictionless ice at 8.1{\rm m}/{\rm s} hits a 6.0{\rm m} -wide patch of rough ice. What is her acceleration on the rough ice
Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Identify the average force that the water exerts on the diver. This force is nonconservative.
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