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Vlad1618 [11]
3 years ago
15

In the seventeenth century, astronomer Johannes Kepler observed the planets revolving around our sun and analyzed data about the

m. He found that as the distance from the Sun increases, the amount of time it takes for the planet to go all the way around the Sun increases. Even though Kepler did not know why his observation was true, it has been found that planets in all solar systems always revolve around suns the same way.
Which best describes why Kepler’s observation of planetary motion is a law instead of a theory?

It does not discuss independent and dependent variables that can be observed or tested.
It does not provide an explanation for why the relationship exists between distance and orbit time.
A lot of new technology has been developed that can record more accurate data about planetary motion.
A lot of different understandings of why planets move have been developed, and Kepler’s provides the best explanation.
Physics
1 answer:
bija089 [108]3 years ago
9 0

Answer:

"A lot of different understanding of why planets move have been developed, and Kepler's provides the best explanation."

Explanation:

All of the other three choices actually contradict the initial question which is asking why Kepler’s observation of planetary motion is a law instead of a theory. A law is a well established theory which means that it is an emergent truth that is known to be true. Kepler's laws have been verified and proven numerous times:) For a deductive proof of Kepler's laws look to Sir Isaac Newton.

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Samples of different materials, A and B, have the same mass, but the sample
Effectus [21]

Answer:

B. The particles that make up material B have more mass than the

particles that make up material A.

Explanation:

3 0
3 years ago
A golf club rotates 215 degrees and has a length (radius) equal to 29 inches. The time it took to swing the club was 0.8 seconds
vichka [17]

Answer:

The average linear velocity (inches/second) of the golf club is 136.01 inches/second

Explanation:

Given;

length of the club, L = 29 inches

rotation angle, θ = 215⁰

time of motion, t = 0.8 s

The angular speed of the club is calculated as follows;

\omega = (\frac{\theta}{360} \times 2\pi, \ rad) \times \frac{1}{t} \\\\\omega =  (\frac{215}{360} \times 2\pi, \ rad) \times \frac{1}{0.8 \ s} \\\\\omega = 4.69 \ rad/s

The average linear velocity (inches/second) of the golf club is calculated as;

v = ωr

v = 4.69 rad/s  x  29 inches

v = 136.01 inches/second

Therefore, the average linear velocity (inches/second) of the golf club is 136.01 inches/second

8 0
2 years ago
A 3.50-meter length of wire with a cross-sectional area of 3.14 × 10-6 meter2 is at 20° Celsius. If the wire has a resistance of
maks197457 [2]

Answer:

5.6\times 10^{-8}\ Ohm.m

Explanation:

Resistivity is given by \rho=\frac {AR}{L} where A is cross-sectional area, R is resistance, L is the length and \rho is the reistivity. Substituting 0.0625 for R, 3.14 × 10-6 for A and 3.5 m for L then the resistivity is equivalent to

\rho=\frac {3.14\times 10^{-6}\times 0.0625}{3.5}=5.60714285714285714285714285714285714285\times 10^{-8}\approx 5.6\times 10^{-8}\ Ohm.m

8 0
3 years ago
Explain why incremental development is the most effective approach for developing business software systems. Why is this model l
Ksenya-84 [330]

Explanation:

Typically, business software technologies are complex, and software strenuous. Business software applications are also often upgraded for changes in business goals or procedures. Real-time systems usually require a lot of hardware components that are quite difficult to change and cannot be upgraded Usually, actual-time safety critical systems that required to be built based on well-planned processes.

3 0
2 years ago
An 85-kg refrigerator is located on the 70th floor of a skyscraper (4km above the ground ) what is the potential energy
Airida [17]
Potential energy can be calculated using the following rule:
potential energy = mgh where:
m is the mass = 85 kg
g is the acceleration due to gravity = 9.8 m/sec^2
h is the height = 4 km = 4000 meters

Substitute in the above equation to get the potential energy as follows:
Potential energy = 85*9.8*4000 = 3332000 joules
7 0
3 years ago
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