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• How are forces related to motion?
• What are momentum and anguLar momentum?
• What do they have to do with motion and the orbits of the planets?
• What factors control the gravitational forces objects exert Oa each other?
• How can the Sane gravitational attraction account for the orbital motion of the planets?
• What forms of energy axe important for an orbiting planet?
• What is meant by escape velocity?
• Why do tides occur and where can the strongest tides be found? What effect do tides have on the Earth and its oceans?
A 416 kg car moving at 17.8 m/s hits from behind another car moving at 11.3 m/s in the same direction. If the second car has a mass of 757 kg and a new speed of 13.0 m/s, what is the velocity of the first car after the collision?
find the electric field at the center of a square produced by four equal 2 muc charges located at its corners. also for
the left ventricle of the heart accelerates blood from rest to a velocity of 23.2 cms. a if the displacement of the
An amount of ideal gas is con?ned to a sealed box at one-half atmospheric pressure, i.e., 50.65 kPa. What is the new pressure of the gas in the smaller box
The Sun revolves around the center of the Milky Way Galaxy at a distance of about 30,000 light-years from the center, how many stars would there be in our Galaxy
A police radar's effective range is 1.0km , and your radar detector's range is 2.1km. At what rate must you negatively accelerate to avoid a speeding ticket
What is size of the gravitational force on the moon
The image behind a convex mirror (radius of curvature= 69 cm) is located 17 cm from the mirror. Where is the object located? What is the magnification of the mirror?
Explain the forces an observer on the turntable would measure on the cannonballs after they leave the cannon. (Include a diagram showing clearly the direction of the forces) measure up to to the forces an observer who is not on the platform would ..
An object weighs 277 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 221 N. When it is immersed in oil, it weighs 257 N.
Estimate the capacitance C of a human being relative to infinity. About how much energy is released when the person touches something and a spark jumps?
A ladder (L = 7.60 m) of weight WL = 360 N leans against a smooth vertical wall. What is the minimum value for the coefficient of static friction between the ladder and the ground
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