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Question1
a. Write three methods of increasing the volume of a balloon without adding more molecules to it.Describe their mechanisms in brief.
b. If you have a balloon that has an assured amount of hot air and have a certain volume and you add the same amount of cold air to that balloon. What will happen to the size of the balloon?
c. If you include more air to a balloon it will sink whereas if you add more heat to the similar balloon it will rise.
Question2
An airplane flies 200 km due west from city A to city B and then 360 km in the direction of 25.0° north of west from city B to city C.
(a) In straight-line distance, how far is city C from city A?
(b) Relative to city A, in what direction is city C?
A 3.7cm x 5.8cm rectangle lies in the xz-plane, What is the electric flux through the rectangle if E = (80i + 70j) N/C
Does the growth of a plant or animal violate the second low.
A hollow cubical box is 0.30 m on an edge. What is the depth of the water in the box just at the instant that water from the lake begins to pour into the box from the lake
what is the angle formed between wire and ground?
A brave child decides to grab on to an already spinning merry-go-round. The child is initially at rest and has a mass of 26.5 kg. What is the moment of inertia of the merry-go-round with respect to its central axis
Albert stands on a frictionless turntable, holding a bike wheel. Both Albert and the wheel are initially stationary. find the final angular momentum had by the rest of the system
A high-speed photograph of a club hitting a golf ball, find the average force exerted on the ball by the club
A bucket filled with water has a mass of 23 kg and is attached to a rope, which in turn, is wound around a 0.050-m radius cylinder at the top of a well. Illustrate what torque does the weight of water and bucket produce on the cylinder if the cyli..
In reaching her destination, a backpacker walks with an average velocity of 1 m/s, due west. How far east did she walk (in kilometers)
How many days does it take for a perfect blackbody cube (0.0206 m on a side, 66.9 °C) to radiate the same amount of energy that a one-hundred-watt light bulb uses in one hour?
A particle's velocity is described by the function vx= t^2? 9t+4m/s, where t is in s. How many turning points does the particle reach
A 5.06 10-5 H solenoid is constructed by wrapping 63 turns of wire around a cylinder with a cross-sectional area of 9.70 10-4 m2 , Determine the change in the length of the solenoid
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