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(a) In the deep space between galaxies, the density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 3.3 K. What is the pressure?
(b) What volume (in m3) is occupied by 1 mol of gas?
(c) If this volume is a cube, what is the length of its sides in kilometers?
The weight of the block on the table is 484 N and that of the hanging block is 165 N. Ignore all frictional effects, and assuming the pulley to be massless. Find the acceleration of the two blocks
hysicists model a magnetic field by assigning to every point in space a vector that represents the strength and direction of the field at that point. Two magnetic fields that exist in the same region of space may be added as vectors at each point to ..
a ball is hurled straight up at a speed of 15.0m/s, leaving the hand of the thrower 3.00 m above ground. What is the total distance traveled by the ball just as it passes the window the second time
In order to calculate the number of ways of arranging a givenamount of energy in a tiny block of copper, How many atoms are in the copper block
A hydrogen atom initially in its ground state (n=1) absorbs a photon and ends up in the state for which n=3. Determine the kinetic and potential energies of an electron in the ground state of the hydrogen atom
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
A nuclear power plant operates at 70 % of its maximum theoretical (Carnot) efficiency between temperatures of 330oC and 600oC. calculate how much exhaust heat is discharged per hour
a 4.0-g bullet leaves the muzzle of a rifle with a speed of 326 ms. what force assumed constant is exerted on the
what are the angles among the cable supporting the load and the beam and between the cable supporting the beam and the beam?
Consider the system with m1 = 24kg, m2 = 14.60kg, R = 0.1400m, and the mass of the pulley M = 5.0kg. Object m2 is resting on the floor, and object m1 is 4.600m above the floor when it is released from rest. The pulley axis is frictionless. The cor..
A 2.20-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizontal force of 11.0 N is required to hold the object at rest when it is pulled 0.200 m from its equilibrium position (the origin of the x axis). The ob..
A box with a total surface area of 1.11 m2 and a wall thickness of 3.1 cm is made of an insulating material. Find the thermal conductivity of the insulating material
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