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A pecnil 10 cm long and 70 cm in front of a lens of focal length -50 cm. The image is
(a) 4 cm long and inverted
(b) 4 cm long and upright
(c) 10 cm long and upright
(d) 25 cm long and inverted
(e) 25 cm long and upright
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
An electron initially moving at 2 x 106 meter per second is accelerated through a potential difference of 15 Volt. Calculate its final kinetic energy in joules
q1. a plane speeds up from 42 meters per second to 155meters per second in 57 seconds. establish an average
A sample of the radioactive nuclide is prepared that has an initial activity of 7.28×1011 .92.4 after the sample is prepared, What is the half-life of this nuclide
A capacitor that has air between its plates is connected across a potential of 24.0 V and stores 48.0 uC of charge. Find the capacitance of the capacitor
The tune of a string instrument will change if it is heated or cooled because the different materials expand or shrink in different ways, resulting in changes in tensions. Calculate by how much each will shrink
An electron that has an energy of approximately 2.0e+01 eV moves between rigid walls 1.8 nm apart. Find the precise energy of the electron
To make a bounce pass, a player throws a 0.50 kilogram basketball toward the ground. If the ball rebounds with the equivalent speed and angle, find what was the impulse delivered to it by the ground
A merchant in Katmandu sells you a solid gold 1 kg statue for a very reasonable price. When you get home, you wonder whether or not you got a bargain, and so you lower the statue into and container of water and measure volume. What volume of displ..
question1a simple pendulum consists of an object suspended by a string. the object is supposed to be a particle. the
A source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 4.00 km from the source, What is the average power radiated by the source
A grocery cart is pushed along an aisle by a shopper who exerts a constant horizontal force of . The acceleration of gravity is . If all frictional forces are neglected and the cart starts from rest, illustrate what is the grocery cart’s final s..
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