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A Scottish physics professor is fishing in Loch Ness and hooks an ancient gold artifact. The density of gold is 19300 kg/m3 and seawater is 1035 kg/m3. While he is pulling up the treasure, the tension in his fishing line is 120N. What will be the tension in his line when he lifts the object out of the water?
A car slows down with an acceleration that has a magnitude of3.2 m/s2. While doing so, it travels 120 m in the + xdirection and ends up with a velocity of +4.0 m/s. a) what is the car’s initial velocity?
One ball of mass 575 g traveling 3.50 m/s to the right collides with another ball of mass 425 g that is initially at rest. What is the velocity of the heavier ball after collision
In a single-slit experiment, the slit width is 210 times the wavelength of the light. What is the width of the central maximum on a screen 1.6 m behind the slit
A particular nucleus has a radius of 4.90*10-15 m and a mass of 9.00*10-26 kg. What is its mass per unit volume of this nucleus? If Earth had the same mass per unit volume, what would be its radius? (The mass of Earth is 5.97*1024 kg.)
A ball rolls down a roof that makes an angle of 30 degrees to the horizontal. The ball has an initial speed of 5 m/s and the roof is 7 meters tall. how far from the base of the house does it land
A 25kg child swings on a playground swing. If the swing hands down 2m from the top bar, and the child swings out 10 degrees, What is the change in potential energy of the child
An alpha particle collides with an oxygen nucleus, initially at rest. What is the final speed of the alpha particle
What is the sufficient condition for a vector field to be conservative? What is a conservative vector field? What are Gaussian Surfaces and why are they important?
A basketball player makes a jump shot. The 0.600-kg ball is released at a height of 2.15 m above the floor with a speed of 7.40 m/s. What is the work done on the ball by air resistance
An ac power generator produces 24 A rms at 4909 V. The voltage is stepped up to 86000 V by an ideal transformer, What percentage of the power delivered by the generator is dissipated as heat in the power line
A 3.00 and a 6.00 capacitor are connected in parallel, and this combination is connected across a 46.0 potential difference. Calculate the charge on first capacitor. Calculate the charge on second capacitor. Calculate the potential difference across ..
what is the minimum acceleration necessary for the plane to take flight.
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