1. The propeller of a World War II fighter plane is 2.38 m in diameter. a. What is its angular velocity in radians per second if it spins at 1100 rev/min? b. What is the linear speed (in m/s) of its tip at this angular velocity if the plane is stationary on the tarmac? c. What is the centripetal acceleration of the...
An electric drill starts from rest and rotates with a constant angular acceleration. After the drill has rotated through a certain angle, the magnitude of the centripetal acceleration of a point on the drill is 7.8 times the magnitude of the tangential acceleration. What is the angle?
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.280 rev/s . The magnitude of the angular acceleration is 0.901 rev/s2 . Both the the angular velocity and angular accleration are directed clockwise. The electric ceiling fan blades form a circle of diameter 0.790 m . A). Compute the fan's angular velocity...
RSES/ph222/W1 HW.pdf WI An electric drill starts from rest and rotates with a constant angular acceleration. After the drill has rotated through a certain angle, the magnitude of the centripetal acceleration of a point on the drill is twice the magnitude of the tangential acceleration. What is the angle?
A flywheel with a radius of 0.220 m starts from rest and accelerates with a constant angular acceleration of 0.610 rad/s2 A. Compute the magnitude of the tangential acceleration, the radial acceleration, and the resultant acceleration of a point on its rim at the start B. Compute the magnitude of the tangential acceleration, the radial acceleration, and the resultant acceleration...
A particle object undergoes uniform circular motion at a speed v around a circle of radius r. Given v and r, the magnitude of centripetal acceleration is a0. Assume when either v or r are changed, the particle remains in uniform circular motion. 1. Suppose the radius of the circle is cut in half. What happens to the magnitude of...
2. A car accelerates along a straight road from rest to 90 km/h in 5.0s. What is the magnitude of average acceleration in meters per second squared. 3. If you are driving 110km/h along a straight road and look to the side for 2.0s, how far do you travel during this inattentive period? 4. At highway speeds, a particular car...
An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the way down and passes a point a distance 43.0 m below its starting point at a time 5.00 s after it leaves the thrower's hand. Air resistance may be ignored. A) What is the initial speed...
A particle rotates in a circle with a centripetal acceleration of 9.81 meters per second squared. If the radius is doubled without changing the particle's speed, what is the new centripetal acceleration in terms of the original value?
The radius of the earth's orbit around the sun (assumed to be circular) is 1.50×108km, and the earth travels around this orbit in 365 days. Part A What is the magnitude of the orbital velocity of the earth in m/s? Express your answer in meters per second Part B What is the radial acceleration of the earth toward the sun?...