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stepan [7]
3 years ago
12

In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 6.40 m

to a store. The magnitude of the shopper's displacement from the bottom of the escalator to the store is 16.0 m. The vertical distance between the floors is 6.20 m. At what angle is the escalator inclined above the horizontal?
Physics
1 answer:
Elden [556K]3 years ago
5 0

Answer:

25 degrees above the horizontal.

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The blank tells how many and the blank tells of what
motikmotik

Answer:  and a theme

Explanation:

3 0
3 years ago
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Whoever answers this question will get brainliest and extra points! :)
ivolga24 [154]

Answer:

14. D

15. It is showing a magnet pushing against itself and everything around with tremendous force.

16. D, because of how many forcefields in that area.

17. It is showing (both) that they are attracting and repealing.

18. I’m not sure sorry :(

Explanation:

hope this helped!

6 0
2 years ago
A hot rod can accelerate from 0 to 60 km/h in 5.4 s.
mylen [45]

Answer:

<h2>a) Acceleration is 3.09 m/s²</h2><h2>b) Distance traveled is 45.05 m</h2><h2>c) Time taken to travel 250 m is 12.72 s</h2>

Explanation:

a) We have equation of motion v = u + at

      Initial velocity, u = 0 km/hr = 0 m/s

      Final velocity, v = 60 km/hr = 16.67 m/s  

      Time, t = 5.4 s

      Substituting

                       v = u + at  

                       16.67 = 0 + a x 5.4

                       a = 3.09 m/s²

      Acceleration is 3.09 m/s²

b) We have equation of motion s = ut + 0.5 at²

         Initial velocity, u = 0 m/s

         Acceleration, a = 3.09 m/s²

         Time, t = 5.4 s      

      Substituting

                       s = ut + 0.5 at²

                       s = 0 x 5.4 + 0.5 x 3.09 x 5.4²

                       s = 45.05 m

       Distance traveled is 45.05 m

c) We have equation of motion s = ut + 0.5 at²

         Initial velocity, u = 0 m/s

         Acceleration, a = 3.09 m/s²

         Displacement, s = 0.25 km = 250 m      

      Substituting

                       s = ut + 0.5 at²

                       250 = 0 x t + 0.5 x 3.09 xt²

                       t = 12.72 s

       Time taken to travel 250 m is 12.72 s

6 0
2 years ago
What is an ordered pair on a distance versus time graph?
wariber [46]

If we choose the x-axis to represent time and the y-axis to represent distance, then an (x, y) ordered pair will represent (time, distance). A particular distance paired with a particular time.

Choice C

5 0
3 years ago
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MIT’s robot cheetah can jump over obstacles 46. cm high and has speed of 12.0 km/h. a) If the robot launches itself at an angle
labwork [276]

Answer:

(a)  y_{max}=0.423m

(b)  \alpha =64.3^{o}

Explanation:

Given data

v_{i}=12km/h=3.33m/s\\\alpha =60^{o}\\g=9.8m/s^{2}\\Required\\(a)y_{max}\\(b)Angle

Solution

For Part (a)

As the velocity component in direction of y is given by:

v_{yi}=v_{i}Sin\alpha \\v_{yi}=3.33Sin60\\v_{yi}=2.88m/s

The maximum displacement is given by:

v_{yf}^{2}=v_{yi}^{2}-2gy_{max}\\ y_{max}=\frac{(2.88)^{2}}{2(9.8)}\\ y_{max}=0.423m

For Part (b)

To reach y=46cm =0.46m apply:

0=v_{yi}^{2}-2(9.8)(0.46)\\v_{yi}=3m/s\\As\\Sin\alpha =\frac{v_{yi}}{v_{i}}\\\alpha  =Sin^{-1}(\frac{v_{yi}}{v_{i}})\\\alpha =Sin^{-1}(\frac{3}{3.33} )\\\alpha =64.3^{o}

5 0
3 years ago
Read 2 more answers
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