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An Airbus A310 is initially moving down the runway at 7.0 m/s preparing for takeoff. The pilot pulls on the throttle so that the engines give the plane a constant acceleration of 1.9m/s2. The plane then travels a distance of 1600 m down the runway before lifting off. How long does it take from the application of the acceleration until the plane lifts off, becoming airborne?
An electron is accelerated through a potential difference of 3 eV and is incident on a finite potential barrier of height 5 eV and thickness 5 x 10 * m. What is the probability that the electron will tunnel through the barrier? Show all steps.
a spherical mirror is polished on both sides. when the concave side is used as a mirror the magnification is 1.7. what
choose one part of the photo-electric experiment that cannot be explained by assuming that light is a wave. why do we
a proton traveling from a far distance with a velocity of 5 x 105 ms and is headed directly at a nitrogen 14 nucleus.
In a Newton's ring experiment, a plano- convex glass (n = 1.42) lens having diame- ter 11.8 cm is placed on a flat plate, What is the radius of curvature of the convex surface of the lens
The temperature of a gold bar rises by 10.0°C when it absorbs 0.677 kJ of energy by heat. The mass of the bar is 525 g. Determine the specific heat of gold from these data
Neglect air resistance for the following. A soccer ball is kicked from the ground into the air. When the ball is at a height of 8.63 m, its velocity is (vx,vy) = (6.69,3.27) m/s.
Find the final velocity of the two balls if the ball with velocity v2i = ?21.4 cm/s has a mass equal to half that of the ball with initial velocity v1i = +25.8 cm/s
lady ate a whole medium size pizza storing up 120 food Calories. This energy is used to heat up 2 liters of water from a certain initial temperature to a final temperature of 80 deg.C, what was the initial temperature of the water?
A 9 g ice cube at -10°C is placed in a lake whose temperature is 17°C. Calculate the change in entropy of the cube-lake system
Unpolarized light with I=120 w/m^2 travels in the x direction and passes through a linearly polarizing film oriented in the z direction, What is the final intensity of the beam passing through all three polarizing films
The length of a string is 532cm. It is held fixed at each end. The string vibrates in seven sections; i.e. string has seven antinodes, and the string vibrates at 150 Hz. What is the wavelength.
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