A ball of mass = 1kg and radius RO=RO=0.1 is placed on a semicircular track with radius R1 that leads to a circular loop track that has a radius R2=3.0m. The ball rolls through all parts of the track without slipping. Note that the radius of the ball is not negligible, ie, it effectively decreases the radius of the looped track by RO. If the ball is to remain on the track at all times.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

What are known as the properties of substances that describe a substance et does not change that substances?