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An applied force varies with position according to F=K1x^n - K2, where n=3, K1=8.4 N/m^3 and K2=46 N. Find how much work is done by this force on an object that moves from xi= 4.29 m to xf= 25 m?
A softball, of mass m = 0.183 kg, is pitched at a speed v0 = 26.9 m/s. Due to air resistance, by the time it reaches home plate it has slowed by 11.9%. Calculate the average force of air resistance
on an otherwise straight stretch of road near moffat colorado the road suddenly turns. this bend in the road is a
A yo-yo has a rotational inertia of 930 gcm2 and amass of 110 g. Its axle radius is2.9 mm, and its string is 130 cm long. What is the magnitude of its linear acceleration
A long solenoid has 130 turns/cm and carries current i. An electron moves within the solenoid in a circle of radius 2.80 cm perpendicular to the solenoid axis. Find the current i in the solenoid
a motorist driving a 1000-kg car wishes to increase her speed from 20 ms to 30 ms in 5 s. determine the horsepower
A person with a remote montain cabin plansto install her own hydroelectric plant. A nearby stream is 3.00mwide and 0.500m deep. Find the power she can generate
In an L-R-C series circuit, theresistance is 400 Ω, the inductanceis 0.380 henrys, and the capacitance is2.00×10−2 microfarads. What isthe resonance angular frequency ωo of thecircuit? The capacitor can withstand a peak voltageof 530 volts
A runner weighs 595 N (about 130 lb), and 70% of this weight is water. How many moles of water are in the runner's body? How many water molecules (H2O) are there?
A cart is propelled over an xy plane with acceleration components ax = 7.0 m/s2 and ay = -2.0 m/s2. what is the velocity of the cart when it reaches its greatest y coordinate
Water flows through a 1.0cm diameter pipe into a 260L bathtub, which it fills in 7mins. what is the speed of the water in the pipe
A tube of radius 5cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. The pressure in the 5 cm tube is 1×10^5 Pa. The density of water is 1000kg/m3. Suppose that the water is no visco..
A bungee jumper (m = 66.00 kg) tied to a 48.00 m cord, leaps off a 78.00 m tall bridge. What size impulse is exerted on the bungee jumper while the cord stretches
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