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I have a problem in mechanical physics where I'm given the linear mass density of a rigid plastic material. Here's the problem for context: A 42 cm diameter wheel, consisting of a rim and six spokes, is constructed from a thin, rigid plastic material having a linear mass denisty of 25 g/cm. The wheel is released from rest at the top of a hill 58 m high. Find the velocity at the bottom of the hill.
What is linear mass density??? I noticed in another problem it is equal to 2piRlambda in some cases, while only lambdaR in others. Where do these equations even come from??
As part of a circuit act, a person drives a motorcycle with constant speed v around the inside of a vertical track of radius r. If the combined mass of the motorcycle and rider is m, find the normal force exerted on the motorcycle by the track at ..
What is the frequency of blue light that has a wavelength of 450 nm and What is the frequency of red light that has a wavelength of 650 nm
if ellis is on earth, mario is on mars and monique is on the moon. they all have a mass of 50kg. they all jump off a trampoline. who will jump the highest. find what is the Tension T2 in the left.
A converging lens can be used as a lighter (on a sunny day). If you want to use it to light a match, where should you put the match, What is the radius of the mirror
The minimum stopping distance for a car traveling at a speed of 30 {m/s} is 60 {m}, including the distance traveled during the driver's reaction time of 0.50 {s}.What is the least stopping distance for the same car traveling at a speed of 41 {m/s}..
A 0.88 kg mass attached to a vertical spring of force constant 196 N/m oscillates with a maximum speed of 0.40 m/s. Find the following quantities related to the motion of the mass.
A 0.255 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.200 kg puck that is initially moving along the x axis with a velocity of 2.06 m/s. After the collision, the 0.200 kg puck has the speed of 1.02 m/s at an ang..
determine the upward force on an airplane's wing if the average flow speed of air is 192 m/s above the wing and 164 m/s below the wing. The density of the air is 1.5 kg/m3 and the area of each wing surface is 26 m2.
A concert loudspeaker suspended high off the ground emits 32W of sound power, What is the sound intensity level at the position of the microphone
A 60 g bullet traveling at 230 m/s penetrates a block of ice at 0°C and comes to rest within the ice. suppose that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision.
A force of 7 pounds is required to hold a spring stretched 0.5 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.9 feet beyond its natural length.
A person exerts a horizontal force of F = 190 N in the test apparatus. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exerts on his fore arm.
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