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Vladimir79 [104]
3 years ago
10

What forces act upon the moon as it orbits the earth

Physics
2 answers:
ValentinkaMS [17]3 years ago
7 0

the axis acts against and it would be a contact force



Mashcka [7]3 years ago
5 0
The correct answer would be gravitational force.

Hope this helped :)
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Horses can run at speeds of 16 meters per second. If a horse running at full
Korolek [52]
240 meters
Explanation: 16 x 15 because it’s 16 meters every second
6 0
3 years ago
Suppose that a baseball is tossed up into the air at an initial velocity 1818​​\text{ m/s} m/s​. The height of the baseball at t
olga2289 [7]

Answer:

13.1 m/s

Explanation:

Given that a baseball is tossed up into the air at an initial velocity 18 m/s​. The height of the baseball at time t​ in seconds is given by h(t) = 18t−4.9t 2 ​​​​​ (in meters).

a) What is the average velocity for [1,1.5]​?

To calculate the velocity travelled by the ball, differentiate the function.

dh/dt = 18 - 9.8t

Substitute t for 1 in the above Differential function

dh/dt = 18 - 9.8 (1)

But dh/dt = velocity

V = 18 - 9.8

V = 8.2 m/s

Average velocity = ( U + V ) / 2

Average velocity = (18 + 8.2)/2

Average velocity = 26.2/2

Average velocity = 13.1 m/s

5 0
3 years ago
A 0.335 kg mass is attached to a spring and executes simple harmonic motion with a period of 0.38 s. The total energy of the sys
kramer

Answer:

k=91.54 \frac{N}{m}

Explanation:

The angular speed is defined as the angle traveled in one revolution over the time taken to travel it, that is, the period. Therefore, it is given by:

\omega=\frac{2\pi}{T}\\\omega=\frac{2\pi}{0.38s}\\\omega=16.53\frac{rad}{s}

The angular frequency of the simple harmonic motion of the mass-spring system is defined as follows:

\omega=\sqrt{\frac{k}{m}}

Here, k is the spring's constant and m is the mass of the body attached to the spring. Solving for k:

\omega^2=\frac{k}{m}\\k=m\omega^2\\k=0.335kg(16.53\frac{rad}{s})^2\\k=91.54 \frac{N}{m}

6 0
3 years ago
High voltage power is often carried in wire bundles made up of individual strands. In your initial post to the discussion, discu
kicyunya [14]

Answer:

<em>More current will be loss through the metal wire strands if the force on them was repulsive, and more stress will be induced on the wire strands due to internal and external flexing.</em>

<em />

Explanation:

A wire bundle is made up of wire strands bunched together to increase flexibility that is not always possible in a single solid metal wire conductor. In the strands of wire carrying a high voltage power, each strand carries a certain amount of current, and the current through the strands all travel in the same direction. <em>It is know that for two conductors or wire, separated by a certain distance, that carries current flowing through them in the same direction, an attractive force is produced on these wires, one on the other. This effect is due to the magnetic induction of a current carrying conductor.</em> The forces between these strands of the high voltage wire bundle, pulls the wire strands closer, creating more bond between these wire strands and reducing internal flex induced stresses.

If the case was the opposite, and the wires opposed themselves, the effect would be that a lot of cost will be expended in holding these wire strands together. Also, stress within the strands due to the repulsion, will couple with external stress from the flexing of the wire, resulting in the weakening of the material.

<em>The biggest problem will be that more current will be lost in the wire due to increased surface area caused by the repulsive forces opening spaces between the strand. This loss is a s a result of the 'skin effect' in wire transmission, in which current tends to flow close to the surface of the metal wire. The skin effect generates power loss as heat through the exposed surface area.</em>

5 0
3 years ago
Which answer is a scientifically accurate description of velocity?
Lyrx [107]

The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

Explanation:

Velocity is the rate of change of displacement with time. It is a physical quantity that has both magnitude and direction.

When expressing velocity, we must consider the directional attribute as it distinguishes it from speed.

Statements:

The hiker began hiking the park's five-mile north hiking trail at 8:00 a.m. with plenty of daylight left to complete the hike before dark.

We are given the displacement of the hiker but the duration of traveling was not indicated. The starting time is known and there is nothing we can infer from it

The motorcyclist traveled along a highway at 55 mph and reached the campsite in less than the two-hour estimated time.

55mph is the speed of the motorcyclist and not velocity. There was no directional attribute.

Walking south along the two-mile canyon trail generally takes less time than traveling the same trail north because walking south is all downhill

This is not quantifiable.

The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

The 200m marker north is the displacement and the time is 5minutes. This is the most scientifically accurate description of velocity.

Learn more:

Motion brainly.com/question/10883914

#learnwithBrainly

4 0
2 years ago
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