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Scrat [10]
3 years ago
13

At the Sun Dagger in New Mexico, a dagger-shaped beam of sunlight pierces a spiral

Physics
1 answer:
nadya68 [22]3 years ago
7 0

Answer:

D

Explanation:

At noon on the summer solstice. The sun dagger was used to observe astrological readings in the ancient time

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Give name of any two devices used to measure the amount of matter contained in a container ​
Vlad [161]

Answer:

Measuring cup and graduated cylinder

Explanation:

These tools measure the volume of liquid matter. Measuring cups are used frequently in cooking and provide measurements generally in ounces and grams. A graduated cylinder is used in laboratories and in research and allows for a greater degree of precision in measuring the volume.

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3 years ago
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A four-wheel-drive vehicle is transporting an injured hiker to the hospital from a point that is 30 km from the nearest point on
zepelin [54]

Answer:

D=200\ km

Explanation:

distance on terrain, d_t=30\ km

  • distance on the road, d_r=70\ km
  • speed on terrain, v_t=30\ km.hr^{-1}
  • speed  on road, v_r=130\ km.hr^{-1}

<u>time taken on the terrain,</u>

t_t=\frac{d_t}{v_t}

t_t=\frac{30}{30}

t_t=1\ hr

<u>time taken to cover the distance on the road:</u>

t_r=\frac{d_r}{v_r}

t_r=\frac{70}{130}

t_r=\frac{7}{13}\ hr

<u>Now the distance covered on terrain in the total time:</u>

D= v_r\times (t_r+t_t)

D= 130\times (\frac{7}{13}+1)

D=130\times \frac{20}{13}\

D=200\ km

<em>is the distance the vehicle must target on the road to minimize the time taken in going off the road.</em>

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3 years ago
The total amount of energy and mass in the universe is _____.
bezimeni [28]
The answer is it stays constant.
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When energy moves from one form to another it is said to be?
bixtya [17]
Energy transformation or conversion
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You are riding your bike and steadily pulling your little brother
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the velocity at which the boy see the ball go by is 7ms-1

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