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An aluminum-alloy rod has a length of 10.008 cm at 16.400°C and a length of 10.020 cm at the boiling point of water.
(a) What is the length of the rod at the freezing point of water? (Answer to the nearest 0.001 cm.)
(b) What is the temperature if the length of the rod is 10.017 cm? Please show all work.
you accelerate your car starting from rest. while the car is increasing its speed, the frictional force acting from the road on the tires? A) directed backword, opposing the motion B)IS directed vertically uo, C) is directed forward, in the direct..
A man falls over while ten pin bowling. He has a speed of 1.7 m/s and a mass of 81 kg. The coefficient of kinetic friction is 0.24. How far in metres does he slide from where he fell
In a graphing calculator, there are four AAA batteries, which together provide a potential difference of 1.5 V and a total of 6.0 W·h of energy. what was the average current through the calculator
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. How much work was done by the motor
A 100 kg sled is slid across a smooth ice field by a group of four dogs tied to the sled pulling with a 350 N force along a rope at an angle of 20 degrees above the horizontal. (a) If the sled travels at a constant speed, find the drag force on the s..
A woman and her dog are out for a morning run to the river, which is located 4 km away. The woman runs at 2.5 m/s in a straight line. What is the total distance run by the dog
A copper bar 2.5 m long has a circular cross section of radius 2 cm. One end is kept at 80 oC and the other end is kept at 0 oC. what is the thermal current in the copper bar
The Potential in a region of space is given by V = (100 V)[(x2 - y2)/z2], where x, y, and z are in meters. Find the Electric Field vector at a point (x, y, z) = (1.0 m, 2.0 m, 3.0 m)
A series AC circuit contains a resistor, an inductor of 200 mH, a capacitor of 5.60 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. Calculate the inductive reactance
The two springs each have a spring constant of 11. They are stretched by 1 as a current passes through the wire. How big is the current.
What was the final temperature of the coins. What is the train's acceleration after its wheel begins to stick.
Compute the Brewster’s angle and angle of refraction.
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