Summer_Equinox 361 Posted August 24, 2015 Share Posted August 24, 2015 i can help with vectors, physics, and calculus if any one needs help with those those are the only subjects i am confident in Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 24, 2015 Share Posted August 24, 2015 (edited) If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed? Use the fact that the speed of light in a vacuum is about 3.00 ✕ 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s). How many significant figures are in the following measurements? (a) 6000000 m/s significant figures (b) 5.00 ✕ 108 m/s significant figures © 7.1200°C significant figures (d) 0.0128°C significant figures (e) 6.3050 J significant figures (f) 363 MHz significant figures The value of the speed of light is now known to be 2.997 924 58 ✕ 108 m/s. Express the speed of light to each of the following levels of precision. (a) with two significant figures m/s (b) with five significant figures m/s © with six significant figures How many significant figures are there in the following measurements? (a) 53.0 0.4 m significant figures (b) 6.158 ✕ 109 s significant figures © 7.27 ✕ 106 kg significant figures (d) 0.0066 significant figures A farmer measures the distance around a rectangular field. The length of each long side of the rectangle is found to be 18.33 m, and the length of each short side is found to be 19.4 m. What is the total distance around the field? Estimate the number of table-tennis balls that would fit (without being crushed) into a room that is 2 m long, 2 m wide, and 12.0 m high. Assume that the diameter of a ball is 3.8 cm. Calculate the circumference and area for the following circles. (Use the following formulas: circumference = 2Ï€r and area = Ï€r2.) (a) a circle of radius 2.2 cm C = cm A = cm2 (b) a circle of radius 6.60 cm C = cm A = cm2 One cubic centimeter (1.0 cm3) of water has a mass of 1.0 ✕ 10-3 kg at 25°C. Determine the mass of 3.0 m3 of water at 25°C. How many significant figures are in the following measurements? (a) 6000000 m/s 1 significant figures (b) 5.00 ✕ 108 m/s 11 significant figures significant figures © 7.1200°C 5 significant figures (d) 0.0128°C 3 significant figures (e) 6.3050 J 5 significant figures (f) 363 MHz 3 significant figures wait hold on If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed? kg*m/s Use the fact that the speed of light in a vacuum is about 3.00 ✕ 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s). 4.1X10^10 km does it make sense, i could explain if you want? dude why are there so many questions on the spoiler O_O i will do the rest in 10000000 years Edited August 24, 2015 by Summer_Equinox Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 24, 2015 Share Posted August 24, 2015 If you divide power measured in watts (1 watt = 1 kg*m^2/s^3) by an acceleration expressed in m/s^2, in what units will the answer be expressed? Use the fact that the speed of light in a vacuum is about 3.00 ✕ 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 3.8 hour(s). How many significant figures are in the following measurements? (a) 6000000 m/s significant figures (b) 5.00 ✕ 108 m/s significant figures © 7.1200°C significant figures (d) 0.0128°C significant figures (e) 6.3050 J significant figures (f) 363 MHz significant figures The value of the speed of light is now known to be 2.997 924 58 ✕ 108 m/s. Express the speed of light to each of the following levels of precision. (a) with two significant figures m/s (b) with five significant figures m/s © with six significant figures How many significant figures are there in the following measurements? (a) 53.0 0.4 m significant figures (b) 6.158 ✕ 109 s significant figures © 7.27 ✕ 106 kg significant figures (d) 0.0066 significant figures A farmer measures the distance around a rectangular field. The length of each long side of the rectangle is found to be 18.33 m, and the length of each short side is found to be 19.4 m. What is the total distance around the field? Estimate the number of table-tennis balls that would fit (without being crushed) into a room that is 2 m long, 2 m wide, and 12.0 m high. Assume that the diameter of a ball is 3.8 cm. Calculate the circumference and area for the following circles. (Use the following formulas: circumference = 2Ï€r and area = Ï€r2.) (a) a circle of radius 2.2 cm C = cm A = cm2 (b) a circle of radius 6.60 cm C = cm A = cm2 One cubic centimeter (1.0 cm3) of water has a mass of 1.0 ✕ 10-3 kg at 25°C. Determine the mass of 3.0 m3 of water at 25°C. The value of the speed of light is now known to be 2.997 924 58 ✕ 10^8 m/s. Express the speed of light to each of the following levels of precision. (a) with two significant figures 3.0 x 10^8 m/s (b) with five significant figures 2.9979 x 10^8 m/s © with six significant figures 2.99792 x 10^8 m/s How many significant figures are there in the following measurements? (a) 53.0 0.4 m i am confused about this number why are there two decimals ? (b) 6.158 ✕ 109 s 13 significant figures © 7.27 ✕ 106 kg 9 significant figures (d) 0.0066 2 significant figures A farmer measures the distance around a rectangular field. The length of each long side of the rectangle is found to be 18.33 m, and the length of each short side is found to be 19.4 m. What is the total distance around the field? perimeter: 75.5 m Estimate the number of table-tennis balls that would fit (without being crushed) into a room that is 2 m long, 2 m wide, and 12.0 m high. Assume that the diameter of a ball is 3.8 cm. 2.13 x10^6 tennis balls Calculate the circumference and area for the following circles. (Use the following formulas: circumference = 2Ï€r and area = Ï€r2.) (a) a circle of radius 2.2 cm C = cm A = cm2 circumference: 14 cm area: 15 cm^2 (b) a circle of radius 6.60 cm C = cm A = cm2 circumference: 41.5 cm area: 137 cm^2 One cubic centimeter (1.0 cm3) of water has a mass of 1.0 ✕ 10-3 kg at 25°C. Determine the mass of 3.0 m3 of water at 25°C. 3.0 x 10^3 kg just kidding Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 24, 2015 Share Posted August 24, 2015 (edited) If someone could translate that into french i would have been able to help... Sent from my 5050X using Tapatalk to find the mean add everything together and divide by how many there are 30+ 37+ 32+ 39+ 33+ 34+ 32 =237 237/7 =33.9 what is this i meant that i did them without taking 1000000 years was too lazy to do all of them hehe, does it make sense though? Edited August 24, 2015 by Summer_Equinox Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 24, 2015 Share Posted August 24, 2015 What is a mean? We have totally different names in France... it means to take an average of the numbers given; there mean, median, and mode which are the three different ways to do it i think though mean is the most accurate what are the names you use in France? Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 25, 2015 Share Posted August 25, 2015 a) 3 b) 4 c) 3 Hehe, ah so you look at the sig digits w/out applying the x10^#, just thé digit before? OK Sry and thx; i only looked up the rules online Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 25, 2015 Share Posted August 25, 2015 WHAT KIND OF FAIL TUTOR AMY Hehe i shouldnt be helping no smarticle particle fruits 1 Link to comment Share on other sites More sharing options...
Summer_Equinox 361 Posted August 25, 2015 Share Posted August 25, 2015 COME ME BRAH Mango juice rapmaster 2015 1 Link to comment Share on other sites More sharing options...
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