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A cube of ice is taken from the freezer at -8.2C and placed in a 92g aluminum calorimeter filled with 309g of water at room temperature of 20.0 C. The final situation is observed to be all water at 17.0 C. What was the mass of the ice cube? m=______kg
) If the pressure of the 2.2-cm3 volume is reduced to 1.2 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims. What is the total amount of work done during one pulse
A particle known as a pion lives for a short time before breaking apart into other particles. Suppose a pion is moving at a speed of 0.993c, What is the lifetime according to a hypothetical person who is riding along with the pion
A 117Kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1820N. When it has reached an altitude of 120m how hard does the floor push on the power supply
A spaceship is moving around the Earth in a 500- x 1000km orbit. At apogee, a retrorocket is fired in a direction exactly opposite to the spaceship's velocity vector. How much time elapsed between retrofire and impact
At the very bottom of the circle, a too sharp knife is suddenly inserted to cut the string directly below the point of support. How far to the right of where the string was cut does the ball hit the floor.
A very long, thin straight line of charge has a constant charge density of 20 pC/cm. How far does the electron go before it comes back
a solid ball has a rotational inertia of 0.0314 kgm2. it is rotated by applying a 4.7 N force tangentiallyto it. the radius is 14 cm. what is the angular acceleration of the ball
A milliammeter reads 15mA full scale. It consists of a 0.20 Ohm resistor in parallel with a 36 Ohm galvanometer
An airplane propeller is rotating at 1250rpm, Compute the propeller's angular velocity in rad/s
A cube of ice is taken from the freezer at -9.5?Cand placed in a 95-g aluminum calorimeter filled with 310g of water at room temperature of20.0 ?C. What was the mass of the ice cube
The nucleus of an atom has a radius of about 5.1×10-15 m. The electron is normally at a distance of about 6.2×10-11 m from the nucleus, Find the volume of the nucleus
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