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blsea [12.9K]
3 years ago
10

Run a few trials with the Gizmo. Explore both shorter (steeper) and longer (flatter) sticks. Why do you think people (or ants) w

ould choose to use an inclined plane to help lift?
Physics
1 answer:
tangare [24]3 years ago
8 0

Answer:

Because it is not as steep and helps it go up the same distance, although you travel farther.

Explanation:

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A 2.00-kg block is pushed against a spring with negligible mass and force constant k = 400 N/m, compressing it 0.220 m. When the
marin [14]

Answer:

0.82052 m

Explanation:

potential energy of spring = kinetic energy

=> 0.5kx^2 = 0.5mv^2

=> v=\sqrt{\frac{kx^2}{m} }

v=\sqrt{\frac{400\times 0.220^2}{2} }

v= 3.11127 m/s

angle = 37°

thus height = distance×sin(37) = D×0.60182

Also,

m×g×h = 0.5×m×v^2

=> 2×9.8×D×0.60182 = 0.5×2×3.11127×3.11127

=> D = 0.82052 m

4 0
3 years ago
Explain another example of Newton's 3rd Law of Motion, using another sport.
Maksim231197 [3]

Newton's third law explains how many sports injuries are caused. The more force you use to a hit a tennis ball, the more reaction force your arm receives from the racket. Every time your feet hit the ground when you are running, the ground hits your feet with an equal and opposite force.

<em>#SpreadTheKnowledge</em>

8 0
3 years ago
The acceleration of a particle is directly proportional to the square of the time t. When t =0, the particle is at x =24 m. Know
AlexFokin [52]

Answer:

x(t) = ⅟₁₀₈t⁴ + 10t + 24

v(t) = ⅟₂₇t³ + 10

Explanation:

a(t) = C₁t²

velocity is the integral of acceleration

v(t) = ⅓C₁t³ + C₂

position is the integral of velocity

x(t) = (⅟₁₂C₁)t⁴ + C₂t + C₃

x(0) = 24 = (⅟₁₂C₁)0⁴ + C₂0 + C₃

C₃ = 24

x(6) = 96 = (⅟₁₂C₁)6⁴ + C₂6 + 24

         72 = 108C₁ + 6C₂

         C₂ = 12 - 18C₁

v(6) = 18 = ⅓C₁6³ + C₂

          18 = 72C₁ + C₂

          18 = 72C₁ + (12 - 18C₁)

           6 = 54C₁

           C₁ = 1/9

           C₂ = 12 - 18(1/9)

           C₂ = 10

4 0
3 years ago
Give an example of a measurement that is precise to the nearest tenth of a gram.
Svet_ta [14]

Answer:

So we have a measure in grams, we can start with something like:

143.523 grams.

Now we want this measurement to be precise to the nearest tenth of a gram.

The nearest tenth of a gram is the first digit after the decimal point, then the digits that come after this are not useful, because they are outside our precision range.

Then we must write our measurement as:

143.5 grams

Where the digit that came after the 5 was a 2, so we rounded down.

4 0
3 years ago
Why does atomic radius decrease from left to right?
victus00 [196]
Because the effective charge of the nucleus increase from left to eight due to the increasing number of protons.

The greater charge pulls the electrons closer to the nucleus, decreasing the radius.
7 0
4 years ago
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