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Question: A toy train rolls around a horizontal 2.0-m -diameter track. The coefficient of rolling friction is 0.13.
A. What is the magnitude of the train's angular acceleration after it is released? Express your answer using two significant figures.
B. How long does it take the train to stop if it's released with an angular speed of 31 rpm? Express your answer using two significant figures.
A capillary tube with a closed end is place into water. The pressure on free water surface is 1 bar. Determine the air pressure inside the capillary tube
a turntable 1.50m in diameter rotates at 80.0rpm. two speakers each giving off sound of wavelength 30.7cm are attached
an electron and a proton are fixed at a separation distance of 931 nm. find the magnitude and direction of the electric
A woman pulls a loaded sled of mass m = 75 kg along a horizontal surface at constant velocity
A proton (mass 1.67 x 10-27) is moving at 1.25 x 10-6 m/s directly towards a stationary helium nucleus (mass 6.64 x 10-27). After a head-on collision, what is the helium's velocity
Determine the slope of the line when s=105 MPa
Two identical asteroids travel side by side while touching one another. If the asteroids are composed of homogeneous pure iron and are spherical, what diameter in feet must they have for their mutual gravitational attraction to be 1 lb?
What is the tension in (a) the nearer (relative to the person) cable and (b) the farther (relative to the person) cable.
A daredevil is shot out of cannon at 41.1o to the horizontal with an initial speed of 26.1 m/s. Find at what height above cannon should the net be placed
A flight attendant pulls her 75 N flight bag a distance of 305 m along a level airport floor at a constant velocity. Find the work done by the force of friction on the flight bag
A student m1 = 70 kg runs towards his skateboard, which has a mass m2 = 2.6 kg and is d = 2.8 m ahead of him. What is the velocity of student and skateboard
q1. a rectangular conducting loop of wire is approximately half-way into a magnetic ?eld b out of the page and is free
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