Question 4 (1 point) The mass of an object is measured to be 127 g with...
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ROGERS 20:20 97% a universityofmanitoba.desire2learn.com Question 2 (1 point) A student measures the diameter of a disk fifteen times with a ruler that has a smallest division of 1 mm. The average of the 15 measurements is 17.04667 cm and the sample standard deviation is 5.595063x10-3 cm. The correctly rounded-off uncertainty (don't use scientific notation) is cm and the correctly rounded off value is cm. D View hint for Question2 Question 3 (1 point) The diameter of...
Question 3 (1 point) The diameter of Mars is measured by a satellite to be 6779.987 km with an uncertainty of 44.932 km. The correctly rounded off uncertainty is A km and the correctly rounded off value is km. View hint for Question 3
You measure the length of a board with a ruler that is older and has a worn-down end. If you align the end of the board with the end of the ruler, what type of uncertainty does the end of the ruler contribute to the measurement? A) Random B) Systematic The average height of children in kindergarten in Winnipeg is found by measuring the height of one randomly-selected child in every kindergarten class in the city. What type of uncertainty...
Question 3 (1 point) You are pulling a 4 kg object with 21 N at 60 degree with ground. What is acceleration? Your Answer units Answer Question 4 (1 point) A mover is pushing a 20 kg safe along a 30 degree ramp with 151 N force. What is the acceleration? Your Answer: Answer units Question 5(1 point) You are pulling a 2.8 kg object with 11.0 N force at 45 degree with ground which is frictional. If accelaration is...
Question 2(1 point) A student measures the diameter of a disk fifteen times with a ruler that has a smallest division of 1 mm. The average of the 15 measurements is 17.04667 cm and the sample standard deviation is 5.595063x10"3 cm. The correctly rounded-off uncertainty (don't use scientific notation) is rounded off value is A cm and the correctly A/ cm.
Question 1 (1 point) In a free-fall experiment, a student measures g to be 10.03 m/s2 with an uncertainty of 0.17 m/s2. The standard value is 9.80 m/s2 with an uncertainty of 0.03 m/s2. The measured value does not agree with the standard value within uncertainties. A) True B) False Hide hint for Question 1
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Question 5 3 pts A small object has mass 8.4 kg and the charge 0.9 C. It is is placed in an electric field of the strength 2,296 N/C. Enter the magnitude of the acceleration of the charge due to the electric force rounded off to ONE decimal place? (Hint: need to use Newton's second law of motion] Question 6 3 pts A particle of mass 0.2 kg and charge 0.6 C is placed at a point...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? 62.8 mL 254 mL O 305 ml O 523 mL O 393 mL O Question 2 (1 point) A chemist needs 225 mL of 2.3 M HCl. What volume of 12 M HCl must be dissolved in water...
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I. You masure the kength of a board with a ruler that is olde and has a wom -down end If you align the end of the board wih the end of the raler, wha type of uncettainty does the end of the ruler contribule to the measurement? A) Random B) Systematic 2· The average height of children in kindergarten th Wintipeg is fund by measuring the height ofone tandomily- selected child in every kindergarten class...
Question 26 (1 point) What is the density (g/mL) of an object that has a mass of 14.25 grams and, whe placed into a graduated cylinder, causes the water level to rise from 25.22 mL to 32.34 mL? Express your answer to the nearest hundredth (+0.01) of a unit. Your Answer: Answer units