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Q1. Elmer really likes to cook with onions and he puts onions into almost everything he makes. He generally starts dinner every day around 5:00 pm. As he is cutting the onions, grandfather clock chimes five times because it is 5:00pm. Elmer is also crying because cutting the onions makes his eyes water. One evening he is at a friend's house because they are going out to dinner later. He and his friend are watching TV and the clock chime give times it is 5:00 pm. Elmer's eyes start to water. Which of following is the ucs in this story.
a) Onionsb) watering eyes after the clock chimesc) Clock chimesd) Friend's house
Q2. An automobile travelling at 25 km/ hour has kinetic energy equal to 1 x 10^4 J
A.) What is mass of the car?
B.) if the velocity of the car is increased to 50 km/ hour, what is its kinetic energy?
C.) if the velocity is improved to 75 km/ hour, what is its kinetic energy?
At one instant a bicyclist is 50 m due east of a park's flagpole, going due south with a speed of 9 m/s. Then, 24 s later, the cyclist is 45 m due north of the flagpole, going due east with a speed of 20 m/s. For the cyclist in this 24 s interval,..
A figure skater can increase her spin rotation rate from an initial rate of 1.0 rev every 2.8 s to a final rate of 3.3 rev/s. what is her final moment of inertia
An plane and pilot have a total mass of 168 kg. While executing a banked curve of radius 20 m at a speed of 12 m/s
A 40.0 kg girl and a 8.4 kg sled are on on ice (frection coefficient 0.01) of a frozen lake, draw free body diagrama for the girl and the sled
A 0.500-kg block rests on the frictionless, icy surface of a frozen pond. what is the minimum uncertainty in the block's speed
A 1000 kg flat railroad car is rolling to the right at 4.5 m/s. A 60 kg man, is standing on the right end of the cart watching the track in front of the car. What is the final speed of the train car with the mud stuck to it
A cold room has walls constructed of 0.24 m brick on the outside, 0.15 m foam insulation in the middle and 1.6 cm of wood on the inside. Calculate the outside and inside surface temperature of the composite wall
A 70.0 cm thick layer of oil floats on a 120 cm thick layer of water. What is the pressure at the bottom of the water
Problem 12.30: Singing in the shower. We all sound like great singers in the shower, due to standing waves, What are the wavelengths of the first two overtones for this shower
A real image 1.5 cm high is 18.0 cm from a thin lens. The image is on the opposite side of the lens, 32.2 cm from the object. How big is the image
Water is discharged from a large pump and travels at an average velocity of 48 ft/sec. What is the kinetic energy of each lbm of water leaving the pump
A large capacitance of 1.80 mF is needed for a certain application, Calculate the volume of Teflon alone in the capacitor
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