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The blades of a kitchen blender rotate counterclockwise at 2.2×104 rpm (revolutions per minute) at top speed. It takes the blender 2.1 seconds to reach this top speed after being turned on. What is the average angular acceleration of the blades?
The gravitational force exerted on a baseball is 2.25 N down. A pitcher throws the ball horizontally with velocity 15.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 154 ms. Through what distance does it ..
q1. a disk with radius 0.5 m is oriented with its normal unit vector n at an angle of 30deg to a uniform electric field
A 65 man's arm, including the hand, can be modeled as a 76 -long uniform cylinder with a mass of 3.4. by how much does he raise his center of gravity?
q1. a pot with a steel bottom 9.00 thick rests on a hot stove. the area of the bottom of the pot is 0.200. the water
A particle of charge +1.5 nC is placed at a corner of a Gaussian cube with sides 12.0cm. What is an electric flux through the cube.
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.8 g, which includes fuel mass of 13.2 g. What is the average exhaust speed of the engine
Torque can be calculated by multiplying the force (N) applied at 90 degrees to the lever arm at a distance (m) from the pivot point (point of rotation), what is the torque on the lever
An electron field of 8.50e5 V/m is desired between two parallel plates each of area 45cm^2 and seperated by 2.45 mm of air
A solid sphere with a radius of 9.3 cm an mass of 373 g is allowed to roll 4.30 m without slipping down a 13.2 degree incline. What is the moment of inertia of the sphere
When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.1m/s in 0.15s, How far does the pike move during this strike
A startled armadillo leaps upward rising 0.550 m in the first 0.203 is. (a) What is its initial speed as it leaves the ground? m/s (b) What is its speed at the height of 0.550 m? m/s (c) How much higher does it go?
The threshold of dark-adapted (scotopic) vision is 6 multiplied by 10-11 W/m2 at a central wavelength of 550 nm. If light with this intensity and wavelength enters the eye when the pupil is open to its maximum diameter of 7.5mm, how many photons p..
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