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A 200 g cord is stretched over a distance of 5.2 mand placed under a tension of 500 N. Compute the speed of a transverse wave in the cord.
A car initially traveling at 23.2 m/s undergoes a constant negative acceleration of magnitude 2.10 m/s2 after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the ..
a 142 kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizantal is increased to ALPHA, If the coefficient of static friction between the crate and the ramp is 0.65, what is the angle alpha when the crate just begins t..
A ball is dropped from rest from the top of a 6.35-m-tall building, falls straight downward, collides in-elastically with the ground, How many bounces can the ball make and still reach a windowsill that is 2.26 m above the ground
At time t = 0, the hockey puck is sent sliding over a frozen lake, directly into a strong wind. Gives the velocity v of the puck versus time as puck moves along a single axis. (The time axis is marked in increments of 0.25 s.) At t = 2.8 s, what i..
truck traveling north a 2900 kg truck traveling north at 34 kmh turns east and accelerates to 44 kmh.a what is the
a solenoid is made of 283 turns of wire wrapped around a hollow cylinder of radius 1.30 cm and length 6.78 cm. what is
A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
you're designing a prosthetic ankle that includes a miniature electric motor containing a 150-turn circular coil 15 mm in diameter. The motor needs to develop a maximum torque of 3.1 mN-m. what current do you need in your motors coil
a typical cell membrane is 7.1 nm thick and has an electrical resistivity of 1.3 x 107 m. if the potential difference
A grandfather clock is controlled by a swinging brass pendulum that is 1.3 m long at a temperature of 30.°C. What is the change in the length of the pendulum rod
A piano tuner stretches a steel piano wire with a tension of 800 N. The steel wire is 0.400 m long and has a mass of 3.00 g, What is the frequency of its fundamental mode of vibration
gold which has a density of 19.32 gcm3 is the most ductile metal and can be pressed into a thin leaf or drawn out into
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