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When you push a bar magnet into a conducting loop, you do work. What happens when you pull it out the other side and why? b. You are turning a generator in such a way that the current it delivers remains constant. As you lower the load resistance across the generator, does the generator get easier or harder to turn and why?
an object is placed 15 cm from first converging lens of focal length 10 cm.a. a second converging lens with focal
primary and secondary amines form hydrogen bonds among themselves. assume you have a solution of ethanamine ethylamine.
a jogger travels a route that has two parts. the first is a displacement of 2.40 km due south and the second involves a
1. Do you understand the conservation of mechanical energy as it changes from KE to PE (for example a flower pot falling from rest)? 2. If you have air-resistance (fluid drag) would the KE at the bottom just before impact be the same as the PE when t..
A projectile is launched with 200 kg m/s of momentum and 1000 J ofkinetic energy. What is the mass of the projectile
The coefficient of kinetic friction between the box and the surface of the incline is 0.2. The initial speed of the box at the bottom of the incline is 2 m/s. How far does the box travel along the incline before coming to rest
A liquid p =1.65 cm3 is flows through two horizontal sections. In the first section the cross sectional area is 10 cm2 and the flow speed is 250 m/s and the pressure is 1.20 x 105 pa. Determine the smaller sections flow speed
A cylinder with a piston contains 0.250 mol of oxygen at 2.40 H105 Pa and 355 K. The oxygen may be treated as anideal gas. The gas first expands is obarically to twice itsoriginal volume. It is then compressed isothermally to itsoriginal volume, a..
A 3.1 kg block slides down a frictionless ramp, as shown in the figure. The top of the ramp is 1.6 m above the ground; What is the speed of the block when it leaves the ramp
The distance from the human eye lens system and the retina is typically 19.0 mm. What is the focal length of the eye lens system for a relaxed eye
Light of wavelength 579 nm shines down on two glass plates, spaced at one end with a thin piece of paper. Looking down on the plates (the figure shows a side view only), 26 bright interference fringes are observed across the top plate by a dark fring..
A 0.03 kg (lead) bullethits a steel plate and melts and splatters on impact. Assuming that the bullet recieves 80% of the collision energy, at what minimium speed must it travel to melt on impact? How is this soved without knowing what the bullet is ..
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