Module 3: Natural Forces Affecting the Driver Vocabulary: Please define six (6) of the following terms in your own words. Please do not just copy and paste the definition. 1. Gravity - The force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account.
Homework Unit 57 Section 7 1. What friction rate should be used to size a duct for a static pressure drop of 0.1 in wc if the duct has a total equivalent length of 150 ft? (57.10) 2. What size metal duct should be used to deliver 170 CFM with a pressure drop of 0.15 in wc if the total equivalent length of 130 ft? (57.10) 7 in.
(In the United States today, almost no one knows what the unit of mass is called--it's not the pound. The pound is a unit of weight--more about weight in the next paragraph. The more mass something has, the harder it is to move or, the more sluggish it is. Weight: The weight of a mass is the force that the earth pulls on the mass. The entire idea of weight can be understood as the force of gravity on something.
must have constant velocity. must have zero momentum. 10. The inertial mass of a body may be defined as A. B. C. D. the ratio of the resultant force acting on the body to its acceleration.
Don’t confuse mass and weight as mass is actually the amount of ‘stuff’ that makes up an object measured in kilograms. Weight is the force calculated by Weight (N) = Mass (kg) x Gravitational field strength (N/kg) W m The gravitational field strength on Earth is taken as 10N/kg. A resultant force is the sum of forces acting on an object. 2N 4N 4N Resultant force = 2N + 4N = 6N to the right g 2N
Module 3: Natural Forces Affecting the Driver Vocabulary: Please define six (6) of the following terms in your own words. Please do not just copy and paste the definition. 1. Gravity- a force that which pulls two objects toward each other. 2.
By age 11, there were few additional changes: Those who were obese or overweight stayed that way, and those whose weight was normal did not become fat. In 1999, 13% of children aged 6 to 11 years and 14% of adolescents aged 12 to 19 years in the United States were overweight. This prevalence has nearly tripled for adolescents in the past 2 decades. Not only have the rates of overweight increased, but the heaviest children in a recent NHANES survey were markedly heavier than those in previous surveys. I believe that we should decrease the amount of proportions, junk food, and sugars we give to our children.
The distance between the forces is given by the Coulombs law through the use of the formula F=kq1q2/r2.0.1newtons = 8.99*109*3.2*10-6*7.7*10-7/r2 R= 555.78 Answer to question 3 • Potential difference between the two plates is equal to velocity which is equal to 6.0*106m/s • Force = mass *acceleration = 1.4*10-13*6.0*106 = -8254 nektons The speed of the particles are computed by the formula V=ED. This is equal to 8.5*10-6*0.15. This is equal to 84.1 Answer to question 4 Voltage = current *resistance. This implies that in this case while V is 5.0 and resistance is 1.0*103, current will be equal to 5/1.0*103, = 500 amps B the direction of the conventional current provides the electric charge movement from the positive side of the battery to its negative side as in indicated in the diagram below Answer to question 5 • This section focuses on the equivalent resistance of a circuit. The equivalent resistance will be equal to (5.0*102+1.00*103)2.
repeat steps 3-5 fourmatines and record data as trails 2-5. Caculate the average distance the block moved and record this in your data table. Predict what you think will happen to the block if th cart starts from notch B. Remember that realeasing the cart from notch B results in a medium cart speed. Record your prediction in your notebook.
Weight: force due to the gravity of an object-w=mg 5. Volume: the amount of space that matter occupies, a 3d measure 6. Density: the amount of matter in an object-D=m/v 7. Variable: shorthand way to write a measurement type 8. Unit: tells us how much + what type of measure it is-V=5mph (valid measure) 9.