Velocity formula - Study guides, Class notes & Summaries

2023 HESI A2 PHYSICS EXAM PREP Q&A1. QUESTION Suppose the final velocity of a motorcycle is 26 m/s east, and it has an average velocity of 76 m/s east. What is the initial velocity of the motorcycle? Assume that the east direction is the positive direction of motion. o -152 m/s o 126 m/s o -126 m/s o 152 m/s We know the average velocity is half the sum of the initial and final velocities. However, this question asks us for the initial velocity. Step 1: Rearrange the average velocity fo...

PHYSICAL SCIENCE FINAL EXAM STUDY GUIDE EXAM QUESTIONS AND VERIFIED CORRECT ANSWERS GRADED A+ motion the state in which one object's distance from another is changing reference point a place or an object used for comparison to determine if an object is in motion International System of Units the system of units (SI) used by scientists to measure the properties of matter meter the basic SI unit of length When is a object in motion? if it changes position relative to a reference point...

lower pH higher acidity higher pH more basic Celsius freezing point 0 Celsius boiling point 100 Fahrenheit freezing point 32 Fahrenheit boiling point 212 Kelvin freezing point 273 Kelvin boiling point 373 What is generally less dense than liquids? gases What is generally less dense than solids? liquids melting point of water 0 greater than 7 base less than 7 acid equal to 7 neutral kin...

1. Proteins necessary for body's mainte- nance, growth, and repair (GS) 2. Carbohydrates and Fats used primarily for energy (GS) 3. 212 Water boils at degrees fahrenheit (GS) 4. 100 Water boils at degrees Cel- sius (GS) 5. 373 Water boils at Ks on the Kelvin scale (GS) 6. Veins carry blood from capillaries toward the heart. (GS) 7. Arteries carry blood away from the heart. (GS) 8. Ventricles lower chamber of the heart (GS) 9. Red Blood Cells component of blood which car- ri...

What is speed? how fast something is going How do you work out the speed? speed= distance ÷ time What is velocity speed with direction What do distance-time graphs show? how something is travelling over a period of time What is the gradient of a distance-time graph equal to? speed- how fast the object is travelling What does the downwards gradient on a distance-time graph show? it means its going back towards its starting location What do the flat...

Weight Formula - = mass x gravity Work done equation - Force x distance Pressure equation - = Force/area Distance Formula - = speed x time Accleration equation - change in velocity/time Force equation - mass x acceleration Momentum - mass x velocity Kinetic formula - =1/2mv^2 (v squared) gravitational potential energy - = mgh g= gravitational field strength (10) Power formula - Work/time wave speed formula - wavelength x frequencyvoltage - current x resistance Energy transferred foru...

Which of the following substances regulates muscle actions? potassium calcium troponin tropomyosin calcium Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit? acetylcholine ATP creatine phosphate serotonin acetylcholine When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of the following structures detects and responds to that stretch by reflexively increasing muscle activity?...

x=5 (lin equation) 1 solution 4=5 (lin equation) 0 solutions 5=5 (lin equation) infinite solutions distance formula d squared= delta x squared plus delta y squared Slope Intercept Formula y=mx+b Point Slope Formula y-y1=m(x-x1) Two Point Formula y-y1=(y2-y1)/(x2-x1) x (x-x1) Standard Form of a Line ax plus by equals c if dividing an inequality by a negative number flip the sign Interval notation Bracket= definite, parenthes...

example of prehepatic portal hypertension -Answer- portal vein thrombosis example of intrahepatic portal hypertension -Answer- cirrhosis example of posthepatic portal hypertension -Answer- Budd-Chiari syndrome identify causes of renal vein thrombosis -Answer- 1. IVC or renal vein extrinsic compression 2. nephrotic syndrome 3. renal tumors 4. renal allografts 5. trauma list 4 sonographic indications for acute renal vein thrombosis -Answer- 1. dilated thrombosed renal vein 2. abse...

Physics review questions and answers correctly solved Physics review questions Define displacement and what are the SI units - correct answer final position -initial position; meters How does displacement and distance traveled differ? Give a concrete example. - correct answer an example is a cross country meet, displacement is 0 because you go back to the start, but distance might be 3.2 miles. The displacement has to do with the initial and final positions, not just the distance. ...