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A plane has a takeoff speed of 88.3 m/s and requires 1365 m to reach that speed. Determine the acceleration of the plane and the time required to reach this speed.
A dragster accelerates to a speed of 112 m/s over a distance of 398 m. Determine the acceleration (assume uniform) of the dragster.
How long will the mortar shell remain in the air? How fast will the shell be traveling when it hits the ground?
Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with
Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the following wave function, wherexis in meters andtis in seconds.
You may neglect air resistance. What is the height of the arrow once it has travelled the 57.0 m horizontally?
If the initial velocity is v(0)=0 and the initial displacement is s(0)=0, find formulas for the velocity and displacement at any time t?
Resonance is heard when the piston is at 22.8 cm from the open end and again when it is 68.3 cm from the open end.(a) What speed of sound is implied by this data?
In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. For example, the note at 110 Hz has two strings at this frequency. If one string sli
An airplane undergoes the following displacements: First, it flies 87 km in a direction 40 east of north. Next, it flies 49km due west.
A baseball player hits a triple and ends up on third base. A baseball "diamond" is a square, each side of length 29 m, with home plate and the three bases on the four corners. What is the magnitude
A meteoroid is speeding through the atmosphere, traveling east at 23.8 km/s while descending at 19.9 km/s. What is its speed, in km/s?
The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph. His ball landed a distance 15.00 ft from the table edge. Calculate his break shot speed.
Question: Point charge 2.0 uC is located at x= 0, y= 0.30m , point charge -2.0uC is located at x = 0 y = -0.30 . What are (a)the magnitude and (b)direction of the total electric force that these cha
The peak instantaneous current in a certain lightning stroke is 21,700 A vertically upward. The current is approximately constant at this value for 1.2 10-4 s.
Determine (a) when the ball will hit the elevator, (b) where the ball will hit the elevator with respect to the location of the man.
Find the average speed of the electrons in a 1.7 cm diameter, copper power line, when it carries a current of 52 A. (The density of free electrons in copper is 8.5 1028/m3.)
Calculate stopping distance from 62 mph for a vehicle with a tire/road friction coefficient equal to 0.6, 0.8 and 1.0, successively. Assume the vehicle can be modeled using particle dynamics.
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 5.94 V. The internal resistance of the battery is 1.11 ? Find the voltage across the battery te
what is the shortest distance you need to walk forward to be at a point where you cannot hear the speakers?
The collector transfers heat by natural convection to the air with a heat transfer coefficient of 3.2 Btu/h.ft2. degree F and also transfers heat by radiation to the sky. Calculate the total heat lo
My question is this For an air conditioner used as a heat pump, the coefficient of performance can be as high as the inverse of the Carnot efficiency which is run between the temperature inside (27
Question: A 5.3 -thick layer of oil (n=1.46) is sandwiched between a 1.1cm -thick sheet of glass and a 2.1cm -thick sheet of polystyrene plastic (n=1.59) (1)How long (in ns) does it take light incid
A beam of light from a monochromatic laser shines into a piece of glass. The glass has thickness L and index of refraction n=1.5 . The wavelength of the laser light in vacuum is L/10 and its freque