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phy (force)

A helicopter of mass 2500 kg carries a bucket of water to fight a wildfire.The total mass of the bucket is 2000 kg.the helicopter accelerates horizontally and the suspension cord makes an angle of...

Physics speed

A calcium ion Ca++ enters with zero velocity a region of uniform electric field of 200N/C pointing east.  What is its speed after 50ms? (Symbol of calcium atom is 20Ca40)

Physics help

13. A water droplet of radius 0.018mm remains stationary in air. If the downward electric field in 150N/C, how many excess electrons must the droplet have?

Physics help

An electric dipole consists of a pint charge -q at the point (0,a) and a point charge q at the pint(0,-a). Find the electric field at the point (x,0).

From Graphical Analysis

Please help me with this. It looks long, but it really is not. A physics student wants to determine the relationship between the radius of a charged conducting sphere and the magnitude of...

HELP please. Physics question.

    A primitive diving bell consists of a cylindrical tank with one end open and one end closed. The tank is lowered into a freshwater lake, open end downward. Water rises into the...

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