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A small mirror is attached to a vertical wall, and it hangs adistance of 1.59 m above the floor. The mirror is facing dueeast, and a ray of sunlight strikes the mirror early in the morningand then again later in the morning. The incident andreflected rays lie in a plane that is perpendicular to both thewall and the floor. Early in the morning, the refleted raystrikes the floor at a distance of 3.95 m from the base of thewall. Later on in the morning the ray is observed to strike the floor at a distance of 1.39 m from the wall. The earth rotates at a rate of 15.0o per hour. How much time(in hours) has elapsed between the two observations?
A 1,500kg satellite is placed in an orbit 8,000km above the surface of the Earth. How long does it take the satellite to go around the Earth
a charged suphere of mass 2.8*10^-4 kg is suspended from astring. find the magnitude of electric force and the tension in the string
Gas is contained in a 9.00-L vessel at a temperature of 24.0°C and a pressure of 6.00 atm. How many molecules are in the vessel
An ideal gas is brought through an isothermal compression process, what are the temperature T of the gas and the final pressure, Pf
With light from a gaseous discharge tube incident normally on a grating with slit separation 1.92 ?m, Compute the wavelength of the light
A light source moves toward a receiver with speed v. If the source emits light with a frequency f0, what is the frequency of the received signal for a source of 220nm
6.63 mol of argon gas is admitted to an evacuated 158.85 cm3 container at 48.95oC. compute the final pressure
An LC circuit is built with a 20 mH inductor and an 8.0 microF capacitor. After what time is the capacitor fully charged
A near-sighted woman cannot focus on any object farther away than a distance x = 57 cm. Find the focal length of the lens which will correct her vision
for each of the anatomical levers listed indentify the class of lever represented identify the fulcrum effort point and
a student pulls a 5kg object along a horizontal surface at a constant speed of 2m/s by a 15N force acting 30 degrees above the horizontal
A uniform 1.80m ladder of mass 6.30kg is leaning against a vertical wall while making an angle of 53.0%u2218 with the floor. How much work did this person do against gravity
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