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Q. The typical trend in a rising plume of subduction-zone magma is to increase: a) the percentage of SiO2 b)the viscosity c) the explosive potential of the magma by holding in the gases more tightly d) all
Q. An experiment is designed which consists of a tube mounted to the top of a 6 foot high desk. Ball #1 is shot through the tube and is shot horizontally off the edge of the desk. At the exact same time ball #1 clears the edge of the desk, ball #2 falls of the edge of the desk straight down. ball #1 velocity- 30ft/sec. Which ball will hit the ground first? How long odes it take each ball to hit the floor?
An electron moves in a circular path perpendicular to the constant magnetic field with a magnitude of 2.00 mT. The angular momentum of the electron about the center of the circle is 5.50 multiplied by 10-25 J•s.
A vector {vec A} has a magnitude of 40.0 {rm m} and points in a direction 20.0 ^circ below the positive x axis. A second vector, {vec B}, has the magnitude of 75.0 {rm m} and points in a direction 50.0 ^circ above the positive x axis.
Find out the object position p for the image to be erect and 7 times the size of the object. Focal length is 46 cm.
Introductory Mechanics: Calculate the smallest coefficient of static friction
A car drives north at 42 mi/h for 10 {rm min} and then turns east and goes 5.0 {rm mi} at 62 mi/h. at last, it goes southwest at 30 mi/h for 6.0 {rm min}.
If a person were to push hardly on a solid wall will the work be done? Also, why would it be exhausting to push hardly against this solid wall?
The basic concepts in optics.
A 100 block on a frictionless table is firmly attached to one end of a spring with = 27 . The other end of the spring is anchored to the wall. A 22 ball is thrown horizontally toward block with a speed of 5.5.
A ball is thrown straight up from the edge of the roof of the building. A second ball is dropped from the roof a time of 1.01 s later. You may ignore air resistance.
A helicopter is rising at 4.60 m/s when a bag of its cargo is dropped. The bag falls for 2.50 s. (suppose that the positive direction is upward.)
What is the rms speed of nitrogen molecules contained in an 7.9 m3 volume at 2.1 atm if total amount of nitrogen is 1100 mol.
The 1 kg block is tied to the wall with a rope. It sits on top of the 2 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2kg block is = 0..
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