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Question1
A spark plug in a car has electrodes unconnected by a gap of 0.023 in. To make a spark and ignite the air-fuel mixture in the engine, an electric field of 4.1 106 V/m is required in the gap. (a) What potential difference should be applied to the spark plug to initiate a spark?
Question2
An archer puts a 0.34 kg arrow to the bowstring. A force of 191 N is necessary to draw the string back 1.3 m. Assume that air resistance is negligible.
(a) Assume that all the energy goes into the arrow, with what speed does the arrow leave the bow? m/s
(b) If arrow is shot straight up, how high does it rise?
Question3
The supersonic aircraft Concorde has a length of 61.2 when sitting on the ground on a typical day while the temperature is 12.0. The Concorde is primarily made of aluminium. In flight at twice the speed of sound, friction with the air warms the Concorde's skin and causes the aircraft to lengthen by 27.0. (The passenger cabin is on rollers, so the airplane expands around the passenger cabin.)
Take coefficient of linear expansion for aluminium to be = 2.40×10-5.
Two boxes sit next to, and touching, each other on a frictionless horizontal surface, Verify your answer to part (b) by calculating the contact force in this case
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, Calculate the magnitude of the initial velocity
A ball is thrown from the edge of a cliff that is 10.0 meters high. The ball is thrown at 10.0 m/s at an angle of 45 degrees above the horizontal. Find the total time of flight
question1in the relativistic heavy ion collider in brookhaven ny physicists are attempt to rebuild the conditions of
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis, What is the radius of a chamber
An airplane is flying through a thundercloud at a height of 2400 m. (Flying at this height is very dangerous because of updrafts, what is the electric field at the aircraft
Two musicians are comparing their clarinets. The first clarinet produces a tone that is known to be 442Hz, If the second clarinet produces a higher pitched tone than the first clarinet, what is the second clarinet's frequency
I am rising upward in a hot air balloon. I am holding my coffee container and i accidentally let go of it when I am leaning out and enjoying the view. Whats the greatst height the container achieved in its flight
What is the difference between the published job market and the hidden job market. What techniques would you usually use to access the published job market.
You throw a ball horizontally off a roof. the time until it lands is determined only by The height of the roof and it's initial speed
Your roommate is an aspiring novelist. Because you are taking physics your roommate asks your opinion on a matter of physics. How many drops per second are keeping the annoyed protagonist awake
If the floor at the base of a table is very hard, and a tennis ball dropped from the top of the table 1 meter high rebounds with 85% of its velocity
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