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An old-fashioned (vinyl) record rotates at a constant rate of 33 rpm.
(a) Determine what is its angular velocity?
rad/s
(b) If the record has a radius of 18 centimeter, determine what is the linear speed of a point on its edge?
m/s
Decide the temperature at which the rms (root-mean-square) speed of an He atom equals 990 m/s. What is the rms speed of He on the surface of a certain star, where the temperature is 5374 K? 75. Two narrow slits are illuminated with a laser with a wav..
a cosmic ray particle travels directly over a soccer field from one goal line to the other at a speed of 0.522c. if the
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
A 5.00 μF capacitor is initially charged to a potential of 16.0 Volt. It is then connected in series with a 3.75mH inductor. Determine the charge on the capacitor plates at the instant the current in the inductor is maximal
A boy standing on top of a building throws a small ball from a height of H1 = 24.2 m. calculate for how long the ball is in the air
A 35.0-g bullet moving at 475 m/s strikes a 3.2-kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 225 m/s. How fast is the bag moving while the bullet exits.
What will be the total horizontal distance traveled by the ball? What is the velocity of the ball (magnitude and direction) the instant before it hits the ground? That is what is its i-component? What is its j-component?
we know that the magnitudes of the negative charge on the electron and the positive charge on the proton are equal.
A 20g ball of clay traveling east at 3.0m/s collides, What is the speed of the resulting ball of clay
A microscope has an objective lens with a focal length of16.22 mm and an eyepiece with a focal length of 9.40 mm. what is the actual diameter of the red blood cell
Three resistors havin resistances of R1= 1.66?, R2= 2.44?, and R3= 4.94? respectively, are connected in parallel to a 28.2V battery that has negligible internal resistance. Find the power dissipated in each resistor
A 7.1cm diameter horizontal pipe gradually narrows to 5.7cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 33.0kPa and 24.0kPa, What is the volume rate of flow
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