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1. For the following questions consider a water molecule, H2O.
a. What type of bond is formed between the oxygen and the hydrogen atoms?
b. Describe how these bonds form.
c. Explain why there are two hydrogen atoms for each oxygen atom.
A one kilogram rocket is launched into the air at a 45o angle. Find what happened to the fourth piece? (What direction did it travel, and at what speed
A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. This causes the machine to slide backward 1.122 meters before coming to a rest. What surfaces are likely to cause this friction
A full cylinder has an absolute pressure of 1.9 107 Pa when the temperature is 300 K. Find out the mass of oxygen in the cylinder.
two harmonic oscillators a and b of mass m and spring constants ka and kb respectively are coupled together by a spring
Two spheres, one with mass M, radius R, and the other mass 2M,radius 3R, are released from rest at a distance of 12R between their centers. What is the velocity of each sphere when they collide?
At Green Hills golf course, the ninth hole par 3 isfrom an elevated tee box. With a laser rangefinder, a golfermeasures the flag to be 143 m 18.5 degrees below thehorizontal.
What is the minimum soap-film thickness (n = 1.33) in air that will produce constructive interference in reflection for red (? = 644nm ) light
A small car is pushing a larger truck that has a dead battery. The mass of the truck is twice as large as the mass of the car. At one instant of time the truck and car both have an acceleration of 3.5 m/s2.
The magnetic field inside a 4 centimeter diameter superconducting solenoid varies sinusoidal between 8.0 T and 12 T at a frequency of 6 Hertz. Obtain the maximum electric field strength at a point 1.2 cm from the solenoid axis
Starting from rest, a basketball rolls from the top of a hill to the bottom, reaching a translational speed of 3.93 m/s. Ignore frictional losses. What is the height of the hill
What conclusion do scientists draw about the universe, based on their observations of cosmic background radiation.
A projectile is fired from a gun near the surface of Earth. The initial velocity of the projectile has a vertical component of 98 meters per second.
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