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At a given instant, the blood pressure in the heart is 1.50 104 Pa. If an artery in the brain is 0.43 m above the heart, what is the pressure in the artery? Ignore any pressure changes due to blood flow.
______ Pa
A 120cm3 box contains helium at a pressure of 2.20atm and a temperature of 80.0â??C. What is the initial thermal energy of each gas?
During a fun run a girl runs for 12 s moving 2.7 m/s. She then accelerates at 0.5 m/s^2 over the next 25 m. What distance did she cover during the entire period
A 2.0 kg cart has a spring with k = 5000 N/m attached to its front, parallel to the ground. What is the speed of each cart after the collision
In an explosion, an object breaks down into two pieces, M1 and M2. M2 flies away at 3 times the speed of M1. Which mass has more momentum immediately after the explosion
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. How high above the ground does the water strike the building
A net force of 32 N accelerates a 4.7-kg mass over a distance of 15 m. What is the total work done by this net force
What is the "Curie Temperature? Find the Curie temperature for iron, cobalt and nickel
An unstable particle is at rest and suddenly breaks up into two fragments. No external forces act on the particle or its fragments. What is the velocity of the more massive fragment
A ball is thrown straight upward and reaches the top of its path in 1.71 s (before it starts to come back down). A second ball is thrown at an angle of 38.2 degrees with the horizontal. At what speed must the second ball be thrown so that it rea..
A 57.0 kg skateboarder starts out with a speed of 1.70 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. Calculate the change (?PE = PEf - PE0) in the gravitational potential energy
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
A 87g arrow is fired from a bow whose string exerts an average force of 130N on the arrow over a distance of 80cm. Illustrate what is the speed of the arrow as it leaves the bow?
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