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Q1. A car travels along a straight stretch of road. It proceeds for 15.7 mi at 53 mi/h next 22.6 mi at 47.0 mi/h, and finally 49.20 mi at 34.60 mi/h. What is the car's average velocity during the entire trip?
Q2. To fill a child's inflatable wading pool, you use a garden hose with a diameter of 2.90 cm. Water flows from this hose with a speed of 1.50 m/s. How long will it take to fill the pool to a depth of 25.0 cm if the pool is circular and has the diameter of 1.50 m?
Two people stand 5.20 m apart and 4.00 m away from a large plane mirror in a dark room. At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam straight strikes the other person.
What is the time constant of a 9.50 thick membrane surrounding a 4.0×10-2 diameter spherical cell? Suppose the resistivity of the cell membrane as and the dielectric constant is approximately 9.00.
An airplane is flying with the velocity of 85.0 m/s at an angle of 20.0 degrees above the horizontal. When the plane is a distance 107 m directly above the dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far..
If a person radiates about 66 W of power at room temperature, how long does it take for person to radiate away the energy acquired by consuming a 230 Calorie doughnut.
A particular organ pipe can resonate at 213 Hz, 355 Hz, and 497 Hz, but not at any other frequencies in between. What is the fundamental frequency of pipe.
What is size of the gravitational force on the moon
Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (n=1.33). The Joker stands gloating at the edge of the pool.
The pilot of an aircraft wishes to fly due west in a 34.60 km/h wind blowing toward the south. The speed of the aircraft in absence of a wind is 145 km/h.
You (height of your eyes above the water, 1.75) are standing 2.00 from the edge of a 2.50--deep swimming pool. You notice that you can barely see your cell phone, that went missing a few minutes before, on the bottom of the pool.
Consider a standing wave on the string with a frequency equal to the fifth harmonic (fn = nf1 with n = 5). How many nodes and antinodes does this standing wave possess.
The springs of a 1400 kg car compress 6.0 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations.
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
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