What is the name of the method that gives the following figure ? 70 I 40 10 4 5 6 Seconds 10 Your answer ZH

1. axextes A particle interacts with other particles in a uniform density medium and executes a random walk. If the particle takes an average time t to travel a distance L away from its starting point, about how long on average does the particle take to travel a distance 2L away from its starting point? A. 0.5t B. t C. 1.4 t D. 2 t E. 4t

The answers to this question are wrong is there any other way to complete this problem?

What is the reading on the micrometer caliper shown? * 40 15 20 35 30 25 2.233 mm 22.330 mm 22.33 mm 2.2330 mm

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I have tried this one multiple times and got the following answers: 1.24E13, 1.24E14, 2.84E27, 5.67E26. I can't get this practice problem correct. Thank you for your help

Electric charge q=-4.1 mC and mass m=3.1×10−6 kg moves with a speed v=9 km/s along the electric field (with it or against it). What is the speed of the charge after the charge travels through a potential difference AV=-3 kV. -6 Express your answer in km/s, rounded to three places after the decimal.

Answer the problem correctly and show the complete solution in a paper

A high school student visits the local electronics store to purchase supplies for her science project. The student finds what she needs and stacks her planned purchases on the check-out counter. Her stack of purchases consists of a 400 gram robotics kit, a 300 gram multi-meter, and a 200 gram soldering tool, as shown in the figure below. The entire system is at rest - and remains at rest. SOLDERING TOOL 200 grams MULTI-METER 300 grams ROBOTICS KIT 400 grams Check-out Counter 15. The soldering tool has a weight of A. 1960 N. В. 200 N. С. 2.00 N. D. 200 kg. E. 1.96 N. 16. The multi-meter pushes down on the robotics kit with a force having magnitude A. 2.94 N. B. 2940 N. С. 29.4 N. D. 4.90 N. E. 500 kg. 17. The robotics kit pushes down on the check-out counter with a force having magnitude A. 8.82 N. B. 400 N. C. 3.92 N. D. 900 kg. E. 8820 N.

Please answer #b, #2, and #3