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1. How does forced convection differ from natural convection?
2. We often turn the fan on in summer to help us cool. Explain how a fan makes us feel cooler in the summer. Also explain why some people use ceiling fans also in winter.
Given Statement: "In free-fall the acceleration is always g and always straight downward regardless of the motion." Three Objections:(a) If I drop a balloon or a feather, it doesn't fall nearly as fast as a brick.
An airplane is flying with a velocity of 95m/s at an angle of 19.0^circ above the horizontal. When the plane is a distance 124m straight above a dog that is standing on level ground, suitcase drops out of luggage compartment.
If she hears the rope hit the ground 5.31 seconds later, how deep is the pit? Assume the speed of sound in air 345.0 m/s
A monatomic ideal gas expands on a linear process such that P=3V + P1 ( initial pressure.) P1 and V1 are the initial pressure and initial volume
Defend or refute the statements based upon your reading or any other outside sources you can quote. All statements must be backed up with citable references that are to be included in your discussion.
The weight of a star is usually balanced by two forces: the gravitational force, acting inward, and the force created by nuclear reaction, acting outward. Over a long period of time, the force due to nuclear reactions gets weaker, causing the grav..
The height of the upper falls at Yellowstone Falls is 32.2m. When the water reaches the bottom of the falls, its speed is 25.8m/s. what is the speed of the water at the top of the falls
1- define velocity and acceleration in terms of position and time. differentiate between the instantaneous quantities
suppose that a basketball league has 32 teams split into two conferences of 16 teams each. each conference is split
The 1.48cm3 volume betweenthe plates of a 111 pF parallel-plate capacitor is filled with adielectric. The area of each plate is 0.00222 m2 and the plates are0.666 mm apart. Find the permittivity of the dielectric.
q1. a horizontal uniform bar of mass 2.6 kg and length 3.0 m is hung horizontally on two vertical strings. string 1 is
A particle that carries a net charge of 9.58x10^(-5)C is held in a region of constant, uniform electric field, What is the potential difference between the particle\'s initial and final positions (Vf - Vi)
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