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When a potential difference of 12V is applied to a wire 7.1m long and 0.34mm in diameter the result is an electric current of 2.2A.
part a) What is the resistivity of the wire?
A toy rocket starts at rest, and is fired vertically. The fuel burns for tine t1 = 15.7 s, and the rocket rises with a constant net upward acceleration of magnitude a1 = 7.23 m/s2. calculate the total time the rocket is in the air
A wire 4 m long and with a mass of 0.5 g is under a tension of 112N. It is made out of the material aluminum. (a)What is the speed of transverse waves in the wire
a ball is thrown at an angle of 30 degrees with an initial velocity of 20 ms at an elevation of 10 m. how long will it
An object weighing 307 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 270 N. Immersed in oil, the object weighs 282 N. compute the density of the object.
Determine the binding energy of the last neutron in a 2311Na nucleus. The masses of the neutral atoms of 2311Na and 2211Na are 22.989770 u and 21.994437 u
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed, What is the magnitude of the tension in the string when the ball is at the bottom of the circle
A disk of radius R and mass M = 10 g is rotating freely about a fixed axis through its center with angular velocity w = 11 rad/s. A spider of mass m = 0.5 g descends onto the disk and goes along for the ride. The moment of inertia of the disk is I..
Illustrate what was its angular acceleration (assumed constant) and what was its final angular speed in rpm?
A 33.0cm focal length converging lens is 17.2cm behind a diverging lens. Parallel light strikes the diverging lens. What is the focal length of the diverging lens
A proton that has a mass m and is moving at 390 m/s in the + direction undergoes a head-on elastic collision with a stationary oxygen nucleus of mass 16m
for a particle in a one demention box, the ground state wave function is: psi=(2/L)^1/2 sin(piX/L), What is the probebility that the particle is in the right-hand half on the box
q1. sphere pendulum has mass of 1.5 kg attached to a cord length of 11.5 m sphere is released from rest while cord
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