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Q.If the planet Uranus were bright enough to see with the naked eye, similar to Saturn, which of the following statements would most likely be true in that case?
a.Its gravity would cause larger tides on Earth than we presently have
b.one would be able to read by starlight at night
c.the fact that it moves very slowly through sky would probably cause it to be named after Yurtle, the god of turtles
d.a week would have 8 days instead of 7
e.the discovery that the Earth revolves around the Sun would have come centuries earlier
A 72 person stands on a uniform ladder 4.5 long, that weighs 75. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force.
Find out the average speed for the trip
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of 2.00 mT. The angular momentum of the electron about center of the circle is 5.50 multiplied by 10-25 J·s.
Describe the displacement of the airplane when the radar was tracking it-RBA=RB-RA. What are the components of RBA.
An ocean liner leaves New York City and travels 56.0° north of east for 170 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions.
A loudspeaker of mass 20.00 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.50 {rm m}.
A 1300 {rm N} crate slides 13 {rm m} down a ramp that makes the angle of 30^circ with the horizontal. If the crate slides at a constant speed, how much thermal energy is created.
Block A in Figure is given an initial velocity of 6 m/s up the incline. Declare of a block on a inclined plane.
The coefficient of expansion of iron and zinc
An uncharged spherical conducting shell surrounds a point charge - q at its centre. Then a charge +3q is placed on the outside surface of shell.
What is the maximum speed with which a 1350kg car can round a turn of radius 71m on a flat road if coefficient of static friction between tires and road is 0.40.
Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which is true about their kinetic energies as they reach the gr..
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