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You are driving into St. Louis, Missouri, and in the distance yousee the famous Gateway-to-the-West arch. This monument rises to aheight of 192 m. You estimate your line of sight with the top ofthe arch to be 8.6° above the horizontal. Approximately how far (inkilometers) are you from the base of the arch?
Frank and Mary are twins, and Mary wants to travel to our nearest star system, Alpha Centauri (4.30 lightyears away). How old will Frank be when she returns
converging lens with a diameter of 33.0 cm forms an image of a satellite passing overhead. what is the altitude of the satellite
To decrease the body temperature of a 66-kg person by 1.0 C , what mass of alcohol must be evaporated from the person's skin? Ignore the heat involved in raising the temperature of alcohol to its boiling point (why?) and approximate the human body as..
A pendulum oscillating on the moon has the same period as a(n) 3.14 m pendulum oscillating on Earth. find the length of the pendulum on the moon
NASA sends satellites to Mars by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit, Calculate the time it takes the satellite to travel from Earth to Mars
The model airplane in Figure 5.7 is flying at a speed of 14.4 m/s on a horizontal circle of radius 17.2 m. The mass of the plane is 1.19 kg. What is the net work done on the plane
explain What is the magnitude of the electric field next to the sheet.
Calculate the rates of solar heating
At age 40, a man requires contact lenses (f=65.0 cm) to read abook held 25.0 cm from his eyes. By what distance has his near point changed
A steel cable with total length 20m and mass 100kg is connected to two poles. The tension in the cable is 2,000N, and the wind makes the cable vibrate with a frequency of 2Hz. Calculate the wavelength of the resulting wave on the cable.
An 8.05 kg mass moving east at 13.7 m/s on a frictionless horizontal surface collides with a 11.3 kg mass that is initially at rest. What is the angle relative to the east
A wheel 2.20 m in diameter lies in a vertical plane and rotates about its central axis with a constant angular acceleration of 4.45 rad/s2. find the angular position of the point P
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