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Time interval is relative to tf - ti. "tf" stands for "final time" and "ti" stands for "initial time." It is used to find out how long it takes to get from one place to another. The full equation is "Δt = tf - ti" where delta (the triangle) represents the time interval. To make things clearer, let me use an example from my physics textbook.
Say it takes a runner one second to get to a tree, and he starts timing himself from there how long it will take him to get to a nearby lamppost. If, from the very beginning, it took him five seconds to get to the lamppost, and one second to get to the tree, it would take four seconds to get from the tree to the lamppost. The equation would look something like this: tf - ti = 5.0 s - 1.0 s = 4.0 s.
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What infroemation is needed to calculate the amount of energy needed to heat a volume of water to some temperature?
You need the amount of water, the temperature of the water, and the desired temperature.
What is 99.8 degrees in Celsius?
Temperature is easy to convert from Fahrenheit to Celsius yourself. You can use the formula Tc = (5/9)*(Tf-32) where Tc = temperature in degrees Celsius, Tf = temperature in degrees Fahrenheit. 99.8 F is 38 C.
What is 100 degrees Fahrenheght in Celsius?
Temperature is easy to convert from Fahrenheit to Celsius yourself. You can use the formula Tc = (5/9)*(Tf-32) where Tc = temperature in degrees Celsius, Tf = temperature in degrees Fahrenheit. 100 F is 37.8C.
Falling objectsdrop with an average acceleration of 9.8 m s2 if an object falls from a tall building how long will it take before it reaches a speed of 49 m sec?
Short answer 5.0 s Long answer From the question the following information is known a = -9.8 m/s2 vi = 0 m/s vf = -49 m/s ti = 0 s using the formula a = Δv/Δt since initial velocity/time = 0 a = vf/tf solve for t (multiply both sides by t and divide both sides by a) tf = vf/a tf = (-49 m/s)/(-9.8 m/s2) = 5.0 s
What equation would you use to convert temperatures in degrees celsius to degrees Fahrenheit?
Tf = ((9/5)*Tc) + 32 is the formula used for the required conversion.
Average acceleration formula?
Average Acceleration = V/t = Vf-Vi / Tf-Ti
How do you find how much heat is gained in a specific heat problem?
q = C x m x (Tf-Ti), where q is heat, C is specific heat capacity, m is mass in grams, and (Tf-Ti) is change in temperature.
What is a mathematical equation to predict the final temperature of a mixture of hot and cold water?
The sum of the heat flows from each quantity of water = zero. Or heat lost by Hot water = Heat gained by cold water; Heat lost by hot water is MC(Ti - Tf) Heat gained by cold water is; mC(Tf - ti) M = mass of hot water, m= mass of cold water, Ti = initial tenperature of hot water, ti = initial temperature of cold water, C = specific heat of water, Tf final temp of both waters. mC(Tf - ti) = MC(Ti -Tf)) Tf(m + M) = mti + MTi Tf = (mti + MTi)/(m + M)
What is chemical formula for titanium?
Ti - were you hoping for something else ? ;-)
Equation to calculate time?
Time taken... to do what exactly? There are lots of formulae that involve time. You would have to be a bit more specific.
How do you do Fahrenheit to Celsius?
Use this formula. Tf = Tc(1.80) + 32
What is titanium chemical formula?
Formula: Ti
What heat is absorbed or released when a substance changes states?
absorbed: endothermic released: exothermic however, substances rarely do this when changing state ()i.e solid to liquid etc() but it is common in chemical reactions ()Lithium+water for example()
What infroemation is needed to calculate the amount of energy needed to heat a volume of water to some temperature?
You need the amount of water, the temperature of the water, and the desired temperature.
A rocket ship leaves the earths atmosphere its initial velocity is less than its final velocity this is example of?
Final velocity vf is greater than the initial velocity vi . That is vf > vi . This is an example of acceleration (positive). Average acceleration aav = [vf - vi]/[tf - ti] where ti is initial time, and tf is final time.
How many calories of heat are released when 80 grams of water cools from 37.5 degrees Celsius to 22.5 degrees celsius?
The heat flow , Q, due to temperature is found by the formula; Q = mC(Tf - Ti) Where m is the mass of the substance (50g), C is the heat capacity of the substance (C for water is 1cal/g-deg), and Tf & Ti are the final and initial temperatures of the substance (37 & 100). If the answer comes out negative the substance lost heat. If it comes out positive it gained heat.
What is the chemical formula of titanium?
Ti
