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An object is at rest if its:   a) Acceleration is zero. b) Velocity is changing. c)An object is at rest if its: a) Acceleration is zero. b) Velocity is changing. c) Velocity is zero. d) Displacement is zero

What does the slope of a distance-time graph represent?  a) Acceleration b) Velocity c) Displacement d) Time

📕 Attention Students 📘 ለHighschool እና 12 ክፍል ተማሪዎች የተከፈተ ምርጥ Channel ልጠቁማችሁ 📚 Welcome Vilgax Academy 📚 በChannelአችን ለHighschool ተማሪዋች ✅ References. ✅ Model Exams. ✅ Previous years matric Exams with answers. ✅ Short Notes. ✅ Worksheets. ✅ Quizs.(Everyday) ✅ News about Upcoming Matric Exams. ✅ Old and New curriculum MOE books እንዲሁም የመሳሰሉትን ያገኛሉ። Channelኡን Join በማለት እንዲሁም Share በማድረግ እራሶን እንዲሁም የሚወዱትን ይጥቀሙ @vilgaxacademy @vilgaxacademy

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If an object has a constant acceleration, its velocity:   a) Is also constant.   b) Changes at a constant rate.   c) Changes at an increasing rate.   d) Is zero.

A car travels 100 km in 2 hours. What is its average speed?   a) 200 km/h   b) 50 km/h   c) 25 km/h   d) 100 km/h  

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😁😁The difference between pH and pOH lies in what they measure in a solution: • pH: Measures the concentration of hydrogen ions (H⁺) in a solution. A lower pH indicates a higher concentration of H⁺ ions, meaning the solution is more acidic. • pOH: Measures the concentration of hydroxide ions (OH⁻) in a solution. A lower pOH indicates a higher concentration of OH⁻ ions, meaning the solution is more basic (alkaline). The Relationship: pH and pOH are related through the ion product constant of water (Kw): Kw = [H⁺][OH⁻] ≈ 1.0 x 10⁻¹⁴ at 25°C Taking the negative logarithm (base 10) of both sides of this equation gives: 14 = pH + pOH This means that at 25°C, the sum of pH and pOH always equals 14. Therefore, if you know the pH, you can easily calculate the pOH, and vice versa. @elevateTutorial

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Deoxygenated blood enters the heart through which of the following structures?   a) Pulmonary veins   b) Aorta   c) Superior and inferior vena cava   d) Pulmonary artery 2. Which chamber of the heart pumps oxygenated blood to the rest of the body?   a) Right atrium   b) Right ventricle   c) Left atrium   d) Left ventricle 3. Oxygenated blood from the lungs is received by which chamber of the heart?   a) Right atrium   b) Right ventricle   c) Left atrium   d) Left ventricle 4. The pulmonary artery carries blood from which chamber to which destination?   a) Left atrium to the body   b) Right ventricle to the lungs   c) Left ventricle to the body   d) Right atrium to the lungs @elevatetutorial