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Often, when something slides down a ramp, we ignore the energy lost due to friction. Write a conservation of energy equation that does not ignore energy lost due to friction (Efriction). What does including friction in the equation do to the final kinetic energy?
A hand-pumped water gun is held level at a height of 0.82 m above the ground and fired. Find the gauge pressure of the water gun's reservoir at the instant when the gun is fired
The eye focuses by:
Calculate the fluid force (in Newtons) on a square plate with aside of 2 m that is submerged at ahorizontal angle of 30°. Assume that the top edge of the plate is located at the surface of the water.
A football player runs directly down the field for 29m beforeturning to the right at an angle of 34o from hisoriginal direction and running an additional 21m before beingtackled.
a 3kg object oscillating on a spring with k 3000 nm has mechanical energy of .9 j. finda the amplitude of the motion.b
Five 5 ohms resistors are connected in series with a 15 Volt battery. Determine the equivalent resistance of the circuit
A car with 52cm -diameter tires accelerates uniformly from rest to 20m/s in 10s. How many ties does each tire rotate
A Venturi tube may be used as the inlet to an automobile carburetor. what is the pressure drop in the constricted section for an airflow of 3.0 cm/s in the 2.0-cm section
A kayaker paddles with a power output of 60.0 W to maintain a steady speed of 1.40 m/s, by what factor does the kayaker's speed change
A very long, straight solenoid with a cross-sectional area of 6.00cm squared is wound with 40 turns of wire per centimeter, What is the average induced emf in the secondary coil
Estimate the change in the Earth’s gravitational dipole moment, with respect to the Earth’s center, if the polar ice caps were to melt.
Two runners approaching each other on a straight track haveconstant speeds of 4.50m/s and 3.50m/s, respectively, whenthey are 100m apart. How long will it take for the runners tomeet, and at what position will they meet if they maintain these speeds?
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