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Consider a wire with resistivity of 5.2x10-7? m, a diameter of 7.50 mm, and a length of 27 m. Decide the resistance of the wire in ohms (?). Round your answer to three important figures.
An 78.0 N box is pulled21.0 m up a 30° incline by anapplied force of 101 N that pointsupward, parallel to the incline. calculate the change inthe kinetic energy of the box
Ultraviolet light with a wavelength of 10.0 nm shines on a gas of hydrogen atoms in their ground states. Some of the atoms are ionized by the light. What is the kinetic energy of the electrons that are freed in this process?
for the isomerization of n-butane to isobutene we have g -rt lnk where r 1.9872 and k isobutenen-butane the temperature
A 0.15 kg ball hits a wall with a velocity of (4.00 m/s) + (6.50 m/s) + (5.00 m/s) . It rebounds from the wall with a velocity of (2.00 m/s) + (3.50 m/s) + (-3.20 m/s). What is the change in the ball's momentum
A cubical block of wood, 10.0 cm on a side, floats at the interfacebetween oil and water with its lower surface 1.50 cm below theinterface (see the cross section view in the figure). The densityof the oil is 790 kg/m3. (a) What is the gauge pressure ..
A car is driven east for a distance of 51 km, then north for 30 km, and then in a direction 31° east of northfor 29 km. Draw the vectordiagram and determine the total displacement of the car from its starting point.
A 3kg object moving in the positive x direction has a one-dimensional elastic collision with a 5kg object initially at rest. What was the initial speed of the 3kg object
A roller coaster car traveling at a constant speed of 20.0 m/s on a level track comes to a straight incline with a constant slope, How far has the car traveled up the incline at this time
a piece of silver weighs 89.5 n in the air 78.5n in the water and 85.6n in an unknown liquid. find the densities of the
A 10.0 kg mass undergoes SHM with an amplitude of 8.0 cm, maximum acceleration of magnitude 3.16 m/s^2, What is the total mechanical energy of the system
The coyote starts 42.0 m from the brink of a cliff. The roadrunner zips past him at a speed of 18.0 m/s. What is the acceleration of the coyote
water flows horizontally through a garden hose of radius 1.0cm at speed of 1.4 m/s. what is the gauge pressure of the water inside the hose
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