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A flywheel turns through 36 rev as it slows from an angular speed of 1.6 rad/s to a stop. (a) Assuming a constant angular acceleration, find the time for it to come to rest.
Find the change in the height of the mercury plum for the temp change of 20C. The volume expansion coefficient of mercury is 0.000182 C^ -1
If a 43 m steel bridge experiences extreme temp between -11c and 44C what is the range in size of this bridge if it measures exactly 43m at 21C. Steel has a coefficient of of linear expansion of 1.
A coil of Nichrome wire (p=1.56x10-6 ohm*m) is 3.0 m long. The radius of the wire is r=.25mm. If the wire carries current I=10.0A, what is the: a) resistance b) voltage across the coil
The molar volume of a certain solid is 142 mL at 1 bar and 427.15K, its melting temperature. The molar volume of the liquid at this temperature and pressure is 152.6mL/mol. At 1.2 MPa, the melting t
A 0.157 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.900 m/s. It has a head-on collision with a 0.304 kg glider that is moving to the left with a speed
The CM of an empty 1250 kg car is 2.30 m behind the front of the car. How far from the front of the car will the CM be when two people sit in the front seat 2.65mm from the front of the car, and t
A 2060 kg railroad flat car, which can move with negligible friction, is motionless next to a platform. A 240 kg sumo wrestler runs at 5.3 m/s along the platform (parallel to the track) and then ju
A sample of an unknown volatile liquid was injected into a Dumas flask and heated until no visible traces of the liquid could be found. The flask and its contents were then rapidaly cooled and rewei
What is its speed when it reaches its highest point after the string catches on the peg?
A 3 micro-Colomb charge is located 1m from a 5 micro-Colomb charge. what new distance between the two charges would result in the force being doubled?
A car with mass of 200 g is carring a block of 150 g climbingan incline of 30 degrees. assume the car and the attached mass aremoving wil an initial velocity of 1.7 m/s. A student predicts thecar w
A car is traveling on a straight road. The maximum velocity that can be attained by the car is 24 m/s. The maximum acceleration and decceleration it can attain is 1 m/s^2 and 4 m/s^2 respectively.
A body weighs 6 grams when placed on one pan and 24 grams when placed on the other pan of a defective beam balance according to the reading shown on the instrument. If the beam is horizontal when b
If the electrons travel in the lab through a tube 2.5 km long (as at SLAC), how long is this tube in the electron' reference frame?
A pencil, 15.7 cm long, is released from a vertical position with the eraser end resting on a table. The eraser does not slip. Treat the pencil like a uniform rod. What is the angular speed of the p
With the string vertical and taut, the mass is released so it can descend under the influence of gravity. Asthe mass descends, the string unwinds and causes the pulley to rotate. What is the speed o
An object starting from rest begins to rotate with constant angular acceleration a. In a time t the object rotates through an angle theta. Through what angle did the object rotate in time t/3?
The base of the ladder rests on a rough horizontal floor whose coefficient of static friction with the ladder is 0.800. An 80.0-kg bucket of concrete is suspended from the top rung of the ladder, ri
assuming that the ladder is resting on a smooth floor, what is the tension in the tie rod? Note: To solve this problem you must "cut" the ladder in half and consider the equilibrium of forces and to
The bullet is fired parallel to the axis and the angular seperation of the holes is measured to be 22.0". What is the speed of the bullet?
In one such experiment, the holes are placed every 0.500 degree and the mirror is 20.0 km away.nif the speed of light is 3.00 x 10^8 m/s, at what angular speed of the disk will the returning light p
An electron moving in a one- dimensional infinite square well of width L is trapped in the n = 5 state. Calculate the probability of finding the electron between x = 0.1 L and 0.4 L to two significa
The amount of energy transfer to the gas by work is 45 Btu/lb of CO2. Determine the final temperature and heat transfer in Btu/lb gas.