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A 1.70 meter length of wire is held in an east-west direction and moves horizontally to the north with a speed of 14.6 m/s. The vertical component of Earth's magnetic field in this region is 40.0 µT directed downward. Determine the induced emf between the ends of the wire and estimate which end is positive.
mV
A pendulum is made by letting a 2.0-kg object swing at the end of a string that has length of 2.0 m. What is the speed of the object at the lowest point in its swing
The velocity of an object falling in free fall increases with time. Does the acceleration also increase? Why or why not?
Two astronauts of equal mass 76 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 18meters. What is the new angular velocity of the two astronauts
consider a negative charge located between two charged plates of a capacitor. which plate is the plate of high electric potential
Eight books, each 4.3 cm thick with mass 1.7kg, lie flat on atable. How much work is required to stack them one on top of another
What is the relationship between a vector and a coordinate system? Between a vector and the number line? What properties or values of a vector depend on the coordinate system used to express it?
A small plastic sphere charged to -10nC in held 1.0 cm above small glass bead at rest on a table. What is the maximum charge can the bead have without leaping up
With a particular fingering, a flute plays a note with frequency 583 Hz at 20.0° C. The flute is open at both ends. Find the air column length.
In an integrated circuit, the current density in a 3.0??m?thick× 80 ??m?wide gold film is 7.9×105A/m2. How much charge flows through the film in 15 min
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
if a planet has a radius 20% greater than of the earth but has the same mass as the Earth, what is the acceleration due to gravity at its surface
The brick wall of a building has dimensions of by and is thick. How much heat ?ows through the wall a period when the average inside and outside temperatures are, in that order.
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