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An airplane propeller is rotating at 1250rpm
A) Compute the propeller's angular velocity in rad/s.
B) How many seconds does it take for the propeller to turn through 36.0 degrees?
C) If the propeller were turning at 23.0 rad/s , at how many rpm would it be turning?
D) When the propeller were turning at 23.0 rad/s , what is the period (in seconds) of this propeller?
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, What is the age of a piece of solidified lava
Initially, a swift-moving hawk is moving due west (in the -x direction) with a speed of 60 m/s; 5.0 s later it is moving due north (in the +y direction) with a speed of 25 m/s.
A child in a boat throws a 5.20 kg package out horizontally with a speed of 10.0 m/s. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.0 kg and that of the boat is 40kg.
An airplane must reach a speed of 186mi/h to take off. If the runway is 488m long, what is the minimum value of acceleration that will allow the airplane to take off successfully.
Two railroad cars, each of mass 7300 kg and traveling at 73 km/h, collide head on and come to rest. How much mechanical energy is lost in this collision
Calculate the energy of the electron in the ground state of double ionized lithium, which has an atomic number Z = 3
In the deep ocean, a water wave with wavelength 95 m travels at 12 m/s. What will be the vertical position of the boat
Compute the linear momentum and angular momentum of a Frisbee of mass 0.144 kg if it has a linear speed of 1.75 m/s and an angular velocity of 64.0 rad/s
What is the acceleration experienced by 0 tip of the 1.50 cm long sweep second hand on your wrist watch? In M/s^2.
Two negative chrges are placed on the x-axis. A charge of -11.4 micro coulmbs is placed at x=0cm and another charge of -5.4 m/C is placed at x=119cm. where on the x axis is the total field between the two charges zero? Answer in cm
What is an expression for , the position of mass I as a function of time? imagine that position is measured in meters and time is measured in seconds.
Two train cars are on a straight, horizontal track. One car starts at rest and is put in motion with a constant acceleration of 1.80 m/s2. Where will the cars collide
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