An object of mass 10 kg is released at point a, slides to the bottom of the 30º incline, then collides with a horizontal massless spring, compressing it a maximum distance of 0.75 m. (see below.) the spring constant is 500 n/m, the height of the incline is 2.0 m, and the horizontal surface is frictionless. what is the speed of the object at the bottom of the incline?

Which atomic model was proposed as a result of j. j. thomson’s work?

Why do different substances have diffrent properties

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)