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youlife
Questions and answers by visitors named
youlife
Questions (7)
Vector A⃗ , in the first quadrant, has a magnitude |A⃗ |= 1.0 and is at an angle α = 40 ∘ with respect to the positive
4 answers
534 views
During a track event two runners, Mary, and Alice, round the last turn and head into the final stretch with Mary a distance d =
2 answers
561 views
A motorist traveling with constant speed of vc = 17.000 m/s passes a school-crossing corner, where the speed limit is 10 m/s.
2 answers
606 views
An object is moving along a straight line parallel to the x-axis. Its position as a function of time is given by:
x(t)=30 m−21
0 answers
518 views
The vectors A⃗ = 1 x^− 2 y^ and B⃗ =− 4 x^+ a y^− 4 z^ are perpendicular to each other. What is the value of a?
a=
1 answer
289 views
For the following 3 vectors
A⃗ =2y^+3z^ B⃗ = 3 x^+2z^ C⃗ = 3 x^+3y^ Calculate the following: (a) A⃗ ⋅(B⃗ +C⃗ )= (b)
1 answer
461 views
Mary wants to throw a can straight up into the air and then hit it with a second can. She wants the collision to occur at height
4 answers
659 views
