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Which one of the quantities below has dimensions equal to MLT2?

A frictionless track is shown in Fig. 4.1 below. A block of mass m = 5 . 00   k g  slides down an incline of height h = 15 . 0   m with an angle of inclination α = 60 . 0 ° . It passes points A, B, C, D, E, A of a circle of radius R = 10 . 0   m  before returning to the horizontal track. (a) What minimum speed v 1 , m i n  does the block have to start in order for it to complete the circular motion without falling? If the block starts at height h = 15 . 0   m  with an initial speed of v 1 , i = 1 . 50 v 1 , m i n , (b) what is the magnitude and direction of the normal force exerted on the block when it is at point C, which is the top of the circle? If the track has a small rough region with coefficient of kinetic friction μ k = 0 . 600  and the length of the region is l = 10 . 0   m , as shown in Fig. 4.2, (c) what minimum speed v 2 , m i n  does the block have to start with after releasing from the incline of height h = 15 . 0   m  in order for it to complete the circular motion without falling? If the block starts at h = 15 . 0   m  with an initial speed of v 2 , i = 1 . 50 v 2 , m i n  and goes through the track shown in Fig. 4.2, (d) what are the magnitude and direction of the normal force exerted on the block when it is at point E, which is 60 . 0 °  from the vertical, and (e) what are the magnitude and direction of the block’s tangential acceleration at point E? (Note: Fig. 4.1 is for questions (a) and (b); and Fig. 4.2 is for questions (c), (d), and (e).) fig4_q20.jpg

In The Souls of Black Folks, W. E. B. Du Bois declares that the problem of the twentieth century is the problem of the color line. In a five-paragraph essay, explore how Du Bois’s “The Comet,” N. K. Jemisin’s “Those Who Stay and Fight,” and Ryan Coogler’s The Black Panther articulate their utopian visions in relation to this color line. In your conclusion, think about which of these is the most viable solution for utopia.

How does the short story “In Persuasion Nation” recall the Land of Cockaigne? What important differences are there? OR How does “Jon” recall Plato’s Allegory of the Cave?

What do Marx and Engels mean when they write, “The history of all hitherto existing society is the history of class struggles”?

What is degrowth communism?

Pick one of the double page spreads and explain how you could use it to teach print referencing in a shared reading. Please identify the book in your answer. Name the print referencing domain and instructional focus in your explanation.    Bang, M. (2004). When sophie gets angry-Really, really angry. Scholastic.    Keller, L. (2009). Do unto otters- A book about manners. Square fish.

Explain the differences between phonological awareness, phonemic awareness, and phonics. How would you assess each?

This myofilament is made of two strands of ________ twisted into a helix.

This gap in the neuromuscular junction is called the _________.