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A hypodermic syringe contains a medicine with the density of water (see figure below). The barrel of the syringe has a cross-sectional area of 2.50 x 10^-5 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm. A force vector F of magnitude 2.00 N is exerted on the plunger, making medicine squirt from the needle. Determine the medicine's flow speed through the needle. Assume the pressure in the needle remains equal to 1.00 atm and that the syringe is horizontal
Assuming that air resistance is simply a constant 95 N force on the person during the fall, evalute the person’s velocity just before hitting the net.
A child is moving at constant velocity carries a 2N ice cream cone 1m across a level surface. WHat is the net work done on the ice cream cone
Two runners start simultaneously from the same point on the circular 200 m track and run in opposite directions. One runs at a constant speed of 6.14 m/s and the other runs at a constant speed of 5.43m/s. When they first meet, for how long a time ..
An object at rest on a flat, horizontal surface explodes into two fragments, one five times as massive as the other one. The lighter fragment gains the velocity of 10.0m/s in the left direction right after the explosion.
A jet flying at 132 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 1.88 105 kg
One solenoid is centered inside another. The outer one has a length of 46.0cm and contains 6600 coils, Find the emf induced in the inner solenoid
A horizontal desk surface measures 2.08 m x 1.73 m. If Earth's magnetic field has magnitude 0.495 mT and is directed 64.8° below horizontal, what is the magnetic flux through the desk surface.
The radius of the aorta is about 1.0cm , and the blood passing through it has a speed of about 46cm/s, Calculate the pressure drop per cm along the aorta.
A 14-A current flows into a series combination of 2.0 ?, 3.0 ?, and 6.0 ? resistors. How much power is dissipated by each resistor
A 10.0 g piece of clay is launched horizontally at 108-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 148 N/m
Water is discharged from a large pump and travels at an average velocity of 48 ft/sec. What is the kinetic energy of each lbm of water leaving the pump
A 0.15-kg of aluminum contains 0.2 kg of water. Initially, the water and the cup have a com- mon temperature of 18 0C, find the specific heat capacity of the unknown material
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