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Q1. A butterfly at eye level is 26 cm in front of a plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of butterfly in the mirror?
Q2. Plan the velocity/time graphs of the following motions:
A) a city bus that is moving with a constant velocity
B) a wheelbarrow that is speeding up at a uniform rate of acceleration while moving in positive direction.
C) A tiger that is speeding up at a uniform rate of acceleration while moving in negative direction.
D) An iguana that is slowing done at a uniform rate of acceleration while moving in positive direction.
E) A camel that is slowing down at a uniform rate of acceleration while moving in negative direction.
An air puck of mass 0.029 kg is tied to the string and allowed to revolve in a circle of radius 2.0m on a frictionless horizontal surface. The other end of the string passes through a hole in the center of surface, and a mass of 2.6 kg is tied to it...
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.95×1016 electrons from one plate to the other. How much work is done in charging the capacitor.
Calculate for the capacitance, the charge of plate, and magnitude of electric field between the plates for a capacitor whose plates are 11 mm apart are 2.00 m-2 in area and being connected to a source with potential difference of 270V.
Compute the Brewster’s angle and angle of refraction.
He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.
Two non conservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. What is the transform in the car's kinetic energy, ΔKE = KEf - KE0, from A to B.
A 9.40kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 69.5kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
The radius of Venus's orbit is 0.72 times that of Earth's orbit. How much stronger is the Sun's gravitational field at Venus than at the earth.
Computing the kinetic energy, takeoff speed, and kinetic energy per kilogram.
Estimate the current in an L-R circuit for t>T if the EMF is (12/T) t for 0
A wheel 45.0 cm in diameter accelerates uniformly from 206rpm to 340 rpm in 7.0 s. How far will a point on edge of the wheel have travelled in this time.
A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
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