Question Properties of Circular Orbits A Review | Constants Learning Goal: Part G To teach you how to find the parameters characterizing an object in a circular orbit around a much heavier body like the earth. The quantities v, K, U, and L all represent physical quantities characterizing the orbit that depend on radius R. Indicate the exponent (power) of the radial dependence of the absolute value of each. Express your answer as a comma-separated list of exponents corresponding to v, K,U, and L, in that order. For example,-1,-1/2,-0.5,-3/2 would mean v « R-1,K « R-1/2, and so forth. The motivation for Isaac Newton to discover his laws of motion was to explain the properties of planetary orbits that were observed by Tycho Brahe and analyzed by Johannes Kepler. A good starting point for understanding this (as well as the speed of the space shuttle and the height of geostationary satellites) is the simplest orbit--a circular one. This problem concerns the properties of circular orbits for a satellite orbiting a planet of mass M. ► View Available Hint(s) Ivo A2Q * R O a ? For all parts of this problem, where appropriate, use G for the universal gravitational constant. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining

Figure 1 Velocity - Time plot for the driverless pod Identify the following from the graph. a. What is the maximum velocity and when does it occur? (1 mark) b. Between what times is the velocity constant? (3 marks) C. What is the value of acceleration at t = 500 s? (2 marks) d. In this context what does a negative velocity mean? (1 mark) e. Approximately what is the furthest distance from station 1 that the pod travels? Give your answer to two significant figures (4 marks) f. From the graph by the time it has travelled for 1200 seconds, how far away from station 1 is the pod? Give your answer to 2 st. (4 marks) g. Sketch the curve for the pod's acceleration based on the given velocity curve in the graph. This sketch should only be rough but on it you should clearly identify the regions corresponding to maximum, constant and negative velocities. There is no need to add a numerical scale to the y-axis it is the shape of the curve that is important. (5 marks) A driverless pod is travelling between two stations. The velocity of the pod as it leaves station 1 is measured in metres per second and is shown in the graph below for an interval of 20 minutes 4 3 2 velocity (ms) -2 200 10X 600 1000 1200

11. 3.7 Uneven Legs 3.7a. A 40 kg table that is 3 m long is supported by two legs positioned as shown. The legs are made of aluminum, with diameters 10 cm (left leg) and 5 cm (right leg). 1 m 2 m What is the compressive stress on the left leg in N/mº? Enter answer here I 12. 3.7b. What is the compressive stress on the right leg in N/mº? Enter answer here 14.3.74 if the legs are I m long and the Young's modulus of aluminum is 70 GP, at what small angle does the table sit in poder? I point Enter answer here I

The questions below refer to the diagram. Protein X is a putative regulator of cell polarity. Muun Epithelium Protein X فاقات Microfilaments Microtubules Nucleus ER Protein X EMT MET Protein X a. What does EMT and MET refer to in this diagram? Are these usually reversible states? What transition in cell polarity states does it involve? What processes are EMT and MET involved in during the lifespan of a human? (4 marks) b. During the EMT process, for a cell to migrate through a tissue, what must it do to the ECM? What enzymes are used to achieve this? (2 marks) c. Could Protein X be E-Cadherin? Explain your reasoning. (2 marks) d. If Protein X was a member of the Scribble complex, would its role be upstream or downstream from integrin signalling in directed migration? What would you expect the effect of the loss of function of Protein X be on microtubule organisation during directed migration? (2 marks)

8.6 (a) Assume the inverters have a delay of 1 ns and the other gates have a delay of 2 ns. Initially A = B = C = 0 and D = 1;C changes to 1 at time 2 ns. Draw a timing dia- gram showing the glitch corresponding to the hazard. (b) Modify the circuit so that it is hazard free. (Leave the circuit as a two-level, OR-AND circuit.) D Et H B

​​​​​​​ EXERCISE - INDIVIDUAL: Convert from big- to little-endian in MIPS n the files for this lab, you have been given mips_networking.s, a MIPS assembler program that reads one number and chen prints it. Add code to mips_networking.s to make it equivalent to this C program: // Reads a 4-byte value and reverses the byte order, then prints it \#define BYTE_MASK QxFF int main(void) \{ int32_t network_bytes; scanf("\%d", \&network_bytes); int32_t computer_bytes \( =0 \); uint32_t byte_mask = BYTE_MASK; computer_bytes \( \mid= \) (network_bytes \& byte_mask) \( \ll 24 \); computer_bytes \( \mid= \) (network_bytes \& (byte_mask \( \ll 8 \) ) ) \( \ll 8 \); computer_bytes \( \mid= \) (network_bytes \& (byte_mask \( \langle<16)) \gg> \); computer_bytes \( \mid= \) (network_bytes \& (byte_mask \( \langle\langle 24) \) ) \( >>24 \); printf("\%d", computer_bytes); return 0 ; \} n other words, it should read one number, network_bytes, reverse the byte order inside it, and print the result. The MIPS documentation guide provides a set of bitwise operations that will be useful for this. For example: \( \$ 1092 \) mipsy mips_networking.s 5 83886080 \( \$ 1092 \) mipsy mips_networking.s 255 \( -16777216 \) \( \$ 1092 \) mipsy mips_networking.s \( -1 \) \( -1 \) \( \$ 1092 \) mipsy mips_networking.s 2147483647 \( -129 \)

A distant star emits maximum intensity for wavelength 850 nm. What is its radiant intensity? a) 1.9 x10 4 W/m2 b) 7.7 x 10 6 W/m2 c) 7.7 x 10 3 W/m2 d) 1.9 x 10 -4 W/m2