First, I know that the pair of triangles in A are congruent by Side by Angle by Side or SAS Congruence Postulate. Hence, triangle YZX is congruent to triangle YZW

asked 2020-11-22

A 0.145 kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is $1.00 \times 10^{- 3}$ s,calculate the average force between the bat and ball during contest.

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asked 2020-11-20

The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?

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asked 2021-02-09

A uniform plank of length 2.00 m and mass 30.0 kg is supported by three ropes. Find the tension in each rope when a 700-N person is 0.500 m from the left end.

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asked 2021-01-10

A 730-N man stands in the middle of a frozen pond of radius 5.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore , at a speed of 5.0 m/s. How long does ittake him to reach the south shore?

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asked 2021-08-17

Evaluate (if possible) the sine, cosine, and tangent at the real number.

t = - \frac{π}{4}

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asked 2022-04-10

How do you find the slope of the tangent line

y = x^{3}

at x=1?

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asked 2022-06-15

I need to prove the limit using the definition of limit

lim_{x \to c} f (x) = L \leftrightarrow \forall ϵ > 0 \exists δ > 0 : 0 < | x - c | < δ \to | f (x) - L | < ϵ

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