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Upstream of a normal shock in air the pressure is 14.7 psia and the temperature is 528R. Downstream of the shock the air pressure is 76.8 psia. What is the Mach number upstream of the shock? What is the Mach number downstream of the shock? What is the temperature downstream of the shock. What is the change in entropy across the shock?
A total of 3.02 106 electrons are placed on an initially uncharged wire of length 1.45 m. What is the magnitude of the electric field a perpendicular distance of 0.400 m away from the midpoint of the wire?
An inductor has inductance of 0.240H and carries a current that is decreasing at a uniform rate of 19.0mA/s. Find the self-induced emf in this inductor
A bullet hit a block of wood with a mass of 10 kg, traveling horizontally at 300 m/s. What is the recoil velocity of the block
An alpha particle (doubly ionized He atom ) is created in a vacuum in the center between our pair of Helmholtz coils horizontal (in the xy plane), how fast would the particle be traveling
A grocery sack can withstand a maximum of 310 N before it rips. Will a bag holding 20.0 kg or groceries that is lifted from the checkout counter at an acceleration of 5.5 hold?
An airplane's speed across the ground can be affected by the wind. how is the speed of the plane across the ground below affected
Three forces are applied to a tree sapling, to stabilize it. If F1= 282 N and F2= 355 N, find F3 in magnitude and direction. The angle between F1 and F2 is equivalent to 110 degrees.
Air is trapped above liquid ethyl alcohol in a rigid container. If the air pressure above the liquid is 1.11 atm, determine the pressure in the bulb inside a bubble 4.0 m below the surface of the ethanol.
Two large metal plates are parallel to each other and separated by 2 cm. they are connected to a 120 V battery. What is the speed of the electron just before it hits the positive plate
A car traveling at 55 km/h hits a bridge abutment. What magnitude of force (assumed constant) acts on the passenger's upper torso, which has a mass of 39 kg
An ideal gas expands isothermally, performing 4.36 multiplied by 103 J of work in the process. Calculate the change in internal energy of the gas
A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.580 m. Find the linear acceleration of the bicycle
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