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3 years ago

2. A child observes a caterpillar walking on a window sill. The caterpillar walks 18 cm to the left, then 6 cm to

Physics

1 answer:

motikmotik3 years ago

8 0

Answer:

D = 8 cm

Explanation:

It is given that, the caterpillar walks 18 cm to the left, then 6 cm to the right, then 10 cm to the left.

We need to find the displacement of the caterpillar. The attached figure shows the path traveled by the caterpillar. A is the initial position, then it reaches B and finally it reaches C.

Let right side is positive and left is negative. We know that,

Displacement = final position - initial position

= C - A

= -10-(-18)

= 8 cm

Hence, the displacement of the caterpillar is 8 cm.

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An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3.80 kW. A receiving antenna 7

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3 years ago

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Read 2 more answers

An ice cube of mass 50.0 g can slide without friction up and down a 25.0 degree slope. The ice cube is pressed against a spring

lozanna [386]

Answer:

0.6 m

Explanation:

When a spring is compressed it stores potential energy. This energy is:

Ep = 1/2 * k * x^2

Being x the distance it compressed/stretched.

When the spring bounces the ice cube back it will transfer that energy to the cube, it will raise up the slope, reaching a high point where it will have a speed of zero and a potential energy equal to what the spring gave it.

The potential energy of the ice cube is:

Ep = m * g * h

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sin(a) = h/d

h = sin(a) * d

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