A200-g block is pressed against a spring of force constant 1.40 kn/m until the block compresses the spring 10.0 cm. the spring rests at the bottom of a ramp inclined at 60° above the horizontal. determine how far up the incline the block moves from its initial position before it stops if the coefficient of kinetic friction is 0.400.

L = 3.35 m

Explanation:

given,

mass of the block = 0.2 Kg

spring constant = 1.40 kN/m

until spring compressed = 10 cm

inclination of ramp = 60°

now,

initial potential energy of spring = (work done by friction) + (final gravitational potential energy of block)

L = 3.35 m

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?