18. Female Team USA Weightlifter Alyssa Ritchey weighs 49kg. Her maximum squat weight is 131.542kgs and deadlifts 161.025kg.
• How many milligrams does Alyssa Ritchey weigh?
• How many grams can Alyssa Ritchey Squat?

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface