Which mathematical relationship best describes a graph of gravitational field strength versus distance? (one of the 3 pictures attached or none of the above?)

Answers

Answer 1

Answer: The gravitational force between two masses is proportional to

(mass-1) x (mass-2) / (the distance between them)-squared

Do you see (distance-squared) in the denominator there ?

That steers you straight to the function [ y proportional to 1/x² ] ... in the middle.

Answer 2

Answer: gravitationnal field between two objets = k.m1.m2/d²
none of the above
the graph is something like that

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Give the number of valence electrons for O. A) 0 B) 1 C) 2 D) 3 E) 4

Answers

Answer:

C) 2

Explanation:

it has an electronic configuration of 2.6

therefore, in order to gain a stable outer shell, 2 more electrons will be needed which is the valence electron

have a great day!

when the temperature of the air is 25 degrees Celsius the velocity of a sound wave traveling through the air is approximately

Answers

Assuming an ideal gas, the speed of sound depends on temperature
only. Air is almost an ideal gas.

Assuming the temperature of 25°C in a "standard atmosphere", the
density of air is 1.1644 kg/m3, and the speed of sound is 346.13 m/s.

The velocity can't be specified, since the question gives no information
regarding the direction of the sound.

Which does more work, a force of 500 N moving through 10 m or a force of 100 N moving through 40 m?

Answers

Explanation:

To determine which force does more work, we can calculate the work done by each force using the formula:

Work = Force × Distance

For the first scenario:

Work = 500 N × 10 m = 5000 N·m

For the second scenario:

Work = 100 N × 40 m = 4000 N·m

Therefore, the force of 500 N moving through 10 m does more work, with a total of 5000 N·m.

Using the information from Paul Hewitt's Conceptual Development Practice Page 25-1 and the image below, answer the following question.Image of a wave with two rulers, one vertical and one horizontal, measuring the wave is shown. The wave's first crest aligns from 0 to just less than 4 centimeters on the horizontal ruler and rises from the equilibrium located at 5 centimeters to just before 3 centimeters. The wave's first trough aligns continues to just less than 8 centimeters on the horizontal ruler and goes down from the equilibrium located at 5 centimeters to just before 7 centimeters.What was the measurement of the wavelength and amplitude respectively?

Answers

Answer:

A = 2 cm, λ = 8 cm

Explanation:

The amplitude of a wave is the maximum height it has, in this case the height is measured by the vertical ruler,

We are told the balance point is in the reading of 5 cm, that the maximum reading is 3 cm and the Minimum reading is 7 cm. Therefore, the distance from the ends of the ridge to the point of equilibrium is

d = 7-5 = 2 cm

d = 5-3 = 2 cm

A = 2 cm

The wavelength is the minimum horizontal distance for which the wave is repeated, that is measured by the horizontal ruler.

The initial reading for 4 cm and the final reading for 8 cm, this distance corresponds to a crest of the wave, the complete wave is formed by two crests whereby the wavelength is twice this value

Δx = 8-4 = 4 cm

λ = 2 Δx

λ = 8 cm

What is transferred by a force moving an object through a distance? A. force
B. mass
C. motion
D. energy

Answers

When you apply force to move anobject at a distance, you are applying work. And work is energy in transit. Theanswer is letter D. For example, you see a cart at a distance. You observe thatit is not moving. You want to transfer it to your backyard. You apply force tothe cart and observed that the cart is not at the same position as it wasbefore. You are applying work to the cart by transferring your energy to it.

Answer:

When you apply force to move an object at a distance, you are applying work. And work is energy in transit. The answer is letter D. For example, you see a cart at a distance. You observe that it is not moving. You want to transfer it to your backyard. You apply force to the cart and observed that the cart is not at the same position as it was before. You are applying work to the cart by transferring your energy to it.

Explanation:

A bike moves. 50 m in 10 seconds calculate the speed of the bike

Answers

The speed of the bike is calculated by dividing the total distance travelled by the total time taken, which in this case is 50 meters divided by 10 seconds. This yields a speed of 5 meters per second.

This involves a concept from Physics called speed.

Speed is defined as the distance covered by an object divided by the time taken to cover that distance.

Since the bike moves 50 meters in 10 seconds, to calculate the speed:

Identify the distance covered which is 50 meters.

Identify the time taken which is 10 seconds.

Divide the distance by the time to get the speed = 50 m / 10 s = 5 m/s. So, the speed of the bike is 5 meters per second.

Learn more about speed here:

brainly.com/question/22610586

#SPJ2

Answer:

We know that

Speed = Distance/ Time

Explanation:

Distance is 50 m
Time is 10 seconds

Speed = 50/10

= 5 m/s