What is the difference between Vf=Vi+(a)t and Vf=Vi-gt in a freefall equation? Specifically i am confused on this question :a tennis player tosses a tennis ball straight up and then catches it after 2.00 s at the same height as the point of release. (a) what is the acceleration of the ball while it is in flight? (b) what is the velocity of the ball when it reaches its maximum height? find (c) the initial velocity of the ball and...
please write neat thanks + URI Vi Fig. P3.112
Write clearly please. thanks! 2 D , 11 + - 7. Prove that if x B and ACB, then x £ A.
How do these 4 equations make the Force equation? Can you please show the steps you would take? L- 2AS tan α L- 2AS tan α
can the equation,a=vf-vi/tf-ti be used in a situation where the acceleration varies with time? Can they be used when the acceleration is zero?
Added load m1(g) Added load m2(g) vi,1(m/s) vi,2(m/s) vf(m/s) measured vf(m/s) calculated Error % Vf,m- Vf,c Vf,c×100 0 0 0.462 0 0.245 0.231 6% 100 0 0.564 0 0.327 0.282 15% 140 40 0.478 0 0.268 0.239 12% 140 100 0.399 0 0.175 0.199 12% 100 140 0.273 0 0.134 0.136 1.74% 40 140 0.4502 0 0.201 0.225 10.6% 0 100 0.526 0 0.125 0.263 18.2% a. Which effect has increasing of mass on initial and final velocity of the...
A speedboat increases its speed uniformly from vi = 20.0 m/s to vf = 29.0 m/s in a distance of Δx = 1.60 ✕ 102 m. (a) Draw a coordinate system for this situation and label the relevant quantities, including vectors. A speedboat in two positions is shown. The speedboat on the left has a speed vi with its vector pointing to the right. The speedboat on the right is at a distance of Δx (in meters) from the speedboat...
Please write clearly and use significant figures. thanks in advance 6. Use the following thermochemical equation for the synthesis of ammonia. N2(g) + 3 H2(g) → 2 NH3(g) AH=-91.8 kJ Rewrite the thermochemical equation to show 3 moles of hydrogen being produced? Rewrite the thermochemical equation to show 6 moles of hydrogen being produced? Rewrite the thermochemical equation to show the production of 6 moles of NH3 produced? 7. Use the thermochemical equation below to find the AH of the...
Is this true or false? Please write the calculation process. Thanks Consider Vf(,y, n terrs of a new coordinate system Let the postion vector defining some contiuous path as a function of the arc length Or De Simitany for the other partiar denvatve in U and E. For speerxal coondimates the following must also be true for any points BEWARE: M1Rona A STATEMENT TRUE THAT is ACTUALLY FALSE RECENES ANEGATIVE tux We were unable to transcribe this image
write clearly , thanks.