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A magician wishes to create the illusion of a 2.53 meter tall elephant. He plans to-do this by forming a virtual image of a 51.0 centimeter tall model elephant with the help of a spherical mirror.
If the model must be placed 3.25 meter from the mirror, determine what radius of curvature is needed?
A bale of hay sits on the bed of a trailer. The trailer is starting to accelerate forward, and the bale is slipping toward the back of trailer. What would a force diagram and a free-body diagram look like for the above situation.
A large aquarium of height 4.19 m is filled with fresh water to adepth of D = 1.60 m. By how much does the total force on that wall increase if the aquarium isnext filled to a depth of D = 4.20 m
a length of aluminum wire has a resistance of 20.0 ? at 14.0degc. when the wire is warmed in an oven and reaches
Just by the impact, the clay has speed v0 = 9 m/s, and the disk is rotating clockwise with angular speed w0 = 0.4 rad/s. Just following the impact, what is an angular speed of the combined system of wheel plus clay.
A Cessna aircraft has a liftoff speed of 120 km/h. How long does it take the aircraft to become airborne
Electrons in a photoelectric experiment emerge from an aluminum surface with a maximum kinetic energy of 1.3eV
a dog sledding team is comprised of a 80.2 kg musher the person driving the sled a 22.0 kg sled and four dogs. assume
Two capacitors give an equivalent capacitance of 9.00 pF when connected in parallel and an equivalent capacitance of 2.00 pF when connected in series, What is the capacitance of each capacitor
Although physics problems often assume that inductors have zero resistance, actual inductors can, in fact, have appreciable resistance. What is the inductance of the inductor
An 9.0 m, 240 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.60, and the ladder makes a 50.0° angle with the ground. How far up the ladder can an 880 N person climb before the l..
A 0.100-mA electron beam with kinetic energy of 54.0 eV enters asharply defined region of lower potential where thekinetic energy of the electrons is increased by 10.0 eV. What current is reflected at the boundary
Superman leaps in front of Lois Lane to save her from a volley of bullets. In a 1-minute interval, an automatic weapon fires 148 bullets, Find the average force exerted on Superman's chest
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