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Jane, looking for Tarzan, is running at top speed (5.6 m/s) and grabs a vine hanging vertically from a tall tree in the jungle.
Estimate how high can she swing upward?
Explain does the length of the vine affect the answer?
A hydraulic lift has pipes of area A1=1 cm^2, A2= 40 cm^2. If I wish to lift a weight of 2000 N at the larger end, what force must i exert at the smaller end
A grindstone with radius 0.65m starts from rest and rotates counter-clockwise through 3 rev at which point its angular speed is 25 rad/s
A metal sphere has an outer radius of R2= 20 cm. The inside is hollow up to a radius of R1= 10 cm, with the inside empty(vacuum). The total mass of the sphere is 2 kg. The sphere is fully submerged underwater? What is the total force on the sphere?
An electron moving from the negative terminal to the positive terminal of a 12 volt battery gains or loses how much energy? Be sure to indicate whether it is a gain or lost in energy.
At t = 0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by ?(t) = (240 rad/s)t ? (21.0 rad/s2)t2 ? (1.60 rad/s3)t3. At what time is the angular velocity of the motor shaft zero
A 1800 kg car traveling north (+) at 70 km/h collides at an intersection with a 2000 kg car traveling west (-) at 57 km/h. The two cars stick together. What is the total momentum of the system before the collision?
A current of 32.9 mA flows in a silver wire of diameter 4.01 mm, Find the electric field strength inside the wire
three capacitor , with capacitance of c1=4.0mf,c2=3.0mf ,c3=2.0mf , are connected to a 24v source (c1 is in series with c2 but c2 and c3 are in parallel, what is the equivalent capacitance of the three capacitors
speedboat a negotiates a curve whose radius is 156 m. speedboat b negotiates a curve whose radius is 238 m. each boat
If I short out a D cell and draw a current of 0.5 A for a minute, how many coulombs of charge move through the circuit
an empty rubber balloon has a mass of 0.0115 kg. the balloon is filled with helium at a density of 0.181 kgm3. at this
Find the angle required to produce this alignment of . (Assume the pulleys are ideal.) Find out the magnitude of the force, that is applied to the femur in this case.
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