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3 years ago

There are 2.5 cm in a inch if a necklace is 16 inches long how long is it measured in centimeters

Physics

2 answers:

wariber [46]3 years ago

8 0

The answer is 840 cm

xeze [42]3 years ago

5 0

Multiply 2.5 by 16
your answer should then be 40 cm long.

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What are parasites? Give some example

Inga [223]

Answer:

parasites are creatures the gain benefit off of other animals usually harming them eg:ticks on dogs

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3 years ago

Starting at t = 0 a net external force in the +x-direction is applied to an object that has mass 5.00 kg. A graph of the force a

Reptile [31]

Answer:

15√2 N

Explanation:

The acceleration is given by ...

a = F/m = 5t/5 = t . . . . meters/second^2

The velocity is the integral of acceleration:

v = ∫a·dt = (1/2)t^2

This will be 9 m/s when ...

9 = (1/2)t^2

t = √18 . . . . seconds

And the force at that time is ...

F = 5(√18) = 15√2 . . . . newtons

6 0

3 years ago

A planet has two small satellites in circular orbits around the planet. the first satellite has a period 18.0 hours and an orbit

puteri [66]

The two satellites orbit around the same planet, so we can use Kepler's third law, which states that the ratio between the cube of the radius of the orbit and the orbital period is constant for the two satellites:
$\frac{r_1^3}{T_1^2}= \frac{r_2^3}{T_2^2}$
where
$r_1$ is the orbital radius of the first satellite
$r_2$ is the orbital radius of the second satellite
$T_1$ is the orbital period of the first satellite
$T_2$ is the orbital period of the second satellite

If we use the data of the problem and we re-arrange the equation, we can calculate the orbital period of the second satellite:
$T_2 = \sqrt{T_1^2 ( \frac{r_2}{r_1} )^3} = \sqrt{(18.0 h)^2 ( \frac{3\cdot 10^7 m}{2 \cdot 10^7 m} )^3} = 33.1 h$

8 0

3 years ago

A 2 kg ball is attached to a 0.80 m string and whirled in a horizontal circle at a constant speed of 6 m/s. The work done on the

wariber [46]

Answer:

72 J

Explanation:

m = 2kg

r = 0.80m

v = 6m/s

W = ?

W = Force × distance

= mv²/r × r

= mv²

= 2×6²

=2×36

= 72J

3 0

3 years ago

Select all that apply.

marishachu [46]

It has to show all loops closed and all lights on to be a closed circuit

8 0

3 years ago

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