Philosophy: The Big Picture Unit 8 What BEST explains what Bertrand Russell meant when he wrote, “This clears up two millennia of muddle-headedness about existence, beginning with Plato.”

A. Plato is highly overrated and should be replaced by Russell.
B. All of philosophy had been considering existence instead of ethics.
C. Russell’s work resolves all past philosophical questions on the topic.
D. No one significant had written philosophy between Plato and Russell.

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.

Calculate the numbers of photons having a wavelength of 10.0 mm required to produce 1.0 kj of energycalculate the numbers of photons having a wavelength of 10.0 mm required to produce 1.0 kj of energy

As you lift an 88 n box straight upward you produce a power of 72 w. what is the speed of the box?