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A child of mass m rides on a Ferris wheel . The child moves in a vertical circle of radius13.8 m at a constant speed of 3.30 m/s.
Calculate the magnitude of the force on the child causing the centripetal acceleration if the ride is midway up the circle (on his way up). Express your answer in terms of mg.
The car and minivan collide and stick together. Suppose the direction of the wreckage after the impact is 42.0° above the x axis.
Two polarizers are oriented at 48° to each other and polarized light incident on them. what was the initial polarization direction of the incident light
A horizontal 799-N merry-go-round is a solid disk of radius 1.45 m, started from rest by a constant horizontal force of 49.9 N applied tangentially to the edge of the disk
Two cars were firstly at rest and side-by-side between two photogates. The mass of cart 1 was 0.505kg. The spring was activated and two carts moved away from one another, passing through the photogates and producing the readings as shown below. Find ..
According to you, an astronaut's trip from Earth to a distant planet takes 28 years. What is the distance between the planets, according to you
A bug crawls outward from the center of a compact disc spinning at 160 revolutions per minute. The coefficient of static friction between bug's sticky feet and disc surface is 1.10.How far does the bug get from the center before slipping.
A 36 g ball is fired horizontally with initial speed v_0 toward a 110 g ball that is hanging motionless from a 1.1 m-long string. The balls undergo a head-on, perfectly elastic collision, after which 110 g ball swings out to a maximum angle theta_..
Your company makes anemometers and plans to install light bulbs on them for high wind warnings. calculate the number of turns in the coil wire needed to light the bulb
500 J of work are completed to compress the gas while, in the same process, 1400 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules.
A disk released from the top of an inclined plane has a speed of 5.52 m/s at the bottom. How high is the upper end of the inclined plane
A laboratory electromagnet produces a magnetic field of magnitude 1.54 T. Find the magnitude of the maximum magnetic force that could be exerted on the proton
A cube of side 2cm is made of material of bulk modulus 4.7\times 10^{^{5}} N/m^2. What is the new length of each of its sides
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