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A wheel is rotating about an axis that is in the z-direction. The angular velocity is at , increases linearly with time and is at . We have taken counterclockwise rotation to be positive. Is the angular acceleration during this time interval positive or negative? During what time interval is the speed of the wheel increasing? During what time interval is the speed of the wheel decreasing? What is the angular displacement of the wheel at 7 seconds? Please use all the formulas and show work in step by step processes with detailed information.
The coefficient of kinetic friction for wood sliding on wood is 0.20. Illustrate what is the speed of the bullet?
A 8.5uC charge is at x_1= 16cm ,y_1 = 7.0cm and a -3.4uC charge is at x_2 = 4.1cm ,y_2 = 10cm. Find the force on the negative charge
An arteriole has a length of 1.25 mm and a radius of 21.9 ?m. The blood pressure drop along the arteriole is 1310 Pa. Calculate the resistance of the arteriole
A person is performing a knee extension exercise with a 100 N weight acting at the ankle. What is the torque at the knee necessary to maintain a knee joint angle of -60q relative to the right horizontal passing through the knee joint
An electric field of intensity 3.5*103N/C is applied the x axis. Calculate the electric flux through a rectangular plane 0.35m wide and 0.70m long
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes in 69.0 degrees, Find the angle the resultant force makes with the rope of dog A
You have a 2.5m long copper wire. You want to make an N-turn current loop that generates a 1.2mT magnetic field at the center when the current is 1.9A, What will be the diameter of your coil
The potential at location A is 376V. A positively charged particle is released there from rest and arrives at location B with a speed vB.
Two tug boats are towing a ship. Each exerts a horizontal force of 5 tons, What net force is exerted on the ship
A uniform magnetic field in a region of space changes at a rate of 5.000e-3 T/s. What is the strength of the induced electric field on a circle
A wire carries current to the north (towards the top of the computer screen) through a magnetic field. what is the direction of the magnetic force on the current-carrying wire
When a battery is connected to the plates of a 2.00-µF capacitor, it stores a charge of 30.0 µC. What is the voltage of the battery
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