A roller coaster moves through a loop. At an angle of 60degree to the bottom of the loop it has a velocity of 14m/s. the mass of the roller coaster and riders is 750kg. the diameter of the loop is 20m. what is the force acting on thebroller coaster at an angle of 60degree to the bottom of the loop?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 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. 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.

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm