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When lead is melted at atmospheric pressure, the melting point is 600 K, the density decreases from 11.01 to 10.65 g/cm3, and the latent heat of fusion ?H is 24.5 Jig.
What is the melting point at the pressure of 1.01 x 107Pa?
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A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +7.8 m/s and ax = +5.3 m/s2. The y components of ...
A high-energy muon was produced in the upper atmosphere 80 km above the sea level. 380 μs later, a detector at the sea level detected it. a. How long was the journey according to this muon? b. What was the proper time fo ...
Question: A projectile is fired with speed v0 at an angle θ from the horizontal as shown in the figure (Figure 1) . Part A Find the highest point in the trajectory, H. Part B: What is the range of the projectile, R? Par ...
Question: You release a fritionless cart at the top of each of the 2 ramps. Both carts are released from rest. The ramps have the same height as each other at the starting and finishing points. One has a small bump up th ...
Question: A pendulum is made by tying a 590 g ball to a 47.0 cm-long string. The pendulum is pulled 22.0^\circ to one side, then released. What is the ball's speed at the lowest point of its trajectory? To what angle doe ...
Question: People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means that unrealistically large currents are needed to produce noticeable torques. Suppos ...
Question: You are experimenting with a radioactive sample of polonium. At the end of 14.0 minutes, exactly 1/16 of the polonium remains. What is the corresponding half life (T 1/2 ) of polonium? The response must be type ...
Fire Behavior and Combustion. When pump operators apply pressure to water in pre-connect hose lines there is a limit on the amount of water and velocity at which the water will travel through the hose lines. This is refe ...
Question: As a roller coaster car crosses the top of a 48.01-m-diameter loop-the-loop, its apparent weight is the same as its true weight. What is the car's speed at the top? The response must be typed, single spaced, mu ...
If you pick up a 5.7 kg object from the ground and lift it to a height of 0.98 m above the ground in 1.66 seconds, how much power is expended? (Use the value of 9.8 m/s 2 for the acceleration of gravity.) Please provide ...
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