you want to balance a hammer on the tip of your finger, which way is easier?
a. head up
b. head down
c. same

Answer:

I believe it is 13,419 joules.

Explanation:

I could be very wrong, please fact check me

Newton's law of universal Gravity:

F = G * (M1 * M2)/ r^2

Where:

G = gravitational constant = 6.674 x10^-11 Nm^2kg^2

M1 = mass 1 = 45.9 kg

M2 = mass 2 = 5.98 x 10 ^24 kg

r = Distance between the 2 objects = 6.38 x 10 ^6 m

Replacing;

F = 450.048 N

Neuroglia: Nervous system composed of two types of cells. A cell that generates and propagates action potential is called neuron and other types of cells that protect and nourishes the neurons called neuroglia. In the CNS there are four types of neuroglia cells.

Astrocytes: Look like star and found in more number. It is the largest glial cells in th CNS and it give strength and support to the neurons

Oligodendrocytes: It is smaller but look like astrocytes and it is responsible for the formation of myeline sheath. Axons that are covered with myeline sheath is called myelinated axon

Microglia: Small cells with number of spine like projections. Its function is phaogocytosis, engulf the bacteria

Ependymal cells: Epithelial cells with villi and cilia and it for blood cerebrospinal fluid barrier.

To know more about neuroglia, visit:

https://brainly.com/question/12969510

#SPJ4

The total distance traveled in one full cycle of simple harmonic motion is twice the amplitude (A) of the oscillation.

Hence, the correct option is C.

The total distance traveled by the block in one full cycle of its motion can be determined by analyzing the nature of simple harmonic motion.

In simple harmonic motion, the block oscillates back and forth around its equilibrium position. During one complete cycle, it moves from its initial position to one extreme position, then returns to the equilibrium position, and finally moves to the other extreme position before returning back to the equilibrium position again.

The total distance traveled in one full cycle of simple harmonic motion is twice the amplitude (A) of the oscillation. This is because the block travels a distance of A in one direction to reach the first extreme position, and then it travels the same distance of A in the opposite direction to reach the other extreme position.

Therefore, the correct option is (c) 2A.

Hence, the correct option is C.

To know more about distance here

https://brainly.com/question/14528269

#SPJ4

Answer:

450 kg

Explanation:

In the picture above. Goodluck

Answer:

The correct answer is D :)

Explanation:

Got it right edge 2021

Answer:

When an atom is unstable it will change into a new atom

Acceleration is defined as the rate of change of velocity, so it is the change in velocity divided by the time taken.

To calculate the acceleration of the car from the speed time graph, we need to determine the change in speed over a specific time interval.
If the speed time graph shows a straight line, we can use the slope of the line to calculate the acceleration. The slope of a straight line is given by the change in y divided by the change in x. In this case, the change in y is the change in speed and the change in x is the change in time.
If the speed time graph shows a curve, we can use the tangent to the curve at a specific point to calculate the acceleration. The tangent represents the instantaneous velocity at that point, and the slope of the tangent gives the instantaneous acceleration.
Once we have calculated the acceleration, we can interpret it in terms of how quickly the car is changing its speed. If the acceleration is positive, the car is speeding up. If the acceleration is negative, the car is slowing down. The magnitude of the acceleration gives us an idea of how quickly the car is changing its speed.
In summary, to calculate the acceleration of a car from a speed time graph, we need to determine the change in speed over a specific time interval. We can use the slope of a straight line or the tangent to a curve to calculate the acceleration. The sign and magnitude of the acceleration give us information about how quickly the car is changing its speed.

Learn more about acceleration here:

https://brainly.com/question/2303856

#SPJ11

The statement "the influence of gravitational force dominates over extremely large scales in the universe" is true of gravitational force but cannot describe electric force.

When it comes to gravitational force, the adage "the influence of gravitational force dominates over extremely large scales in the universe" is accurate, but it cannot apply to the electric force. The main force in the cosmos at vast dimensions is gravity, which controls the motion of planets, stars, and galaxies. Although both gravitational and electric forces obey the inverse square law.

The behaviour of charged particles on lower dimensions, such as within atoms and molecules, is mainly governed by electric forces, which are usually much weaker than gravitational forces. In addition, while both forces can be appealing, gravitational forces are always attractive, whereas electric forces can also be repulsive between entities with similar charges. Last but not least, there are four basic forces: gravity, the strong nuclear force, the weak nuclear force, and the electric force. The strong nuclear force is one of these four factors.

Learn more about gravitational force:

https://brainly.com/question/29328661

#SPJ4

here is the answers, hope this helps you.

Answer:

b. 4 ms-2

Explanation:

acceleration = velocity / time

Answer:

1. Beryllium

2. 4

3. 9

4. 0

Explanation:

• The element shown in the image is beryllium because the atom shown contains four protons and the only element with four protons is beryllium.

• The atom's atomic number is 4, because atomic number is the number of protons of an element, and the atom shown contains 4 protons.

• The mass number of the atom is 9. Mass number is the sum of the number of protons and neutrons in the nucleus of an atom, and the atom shown contains 4 protons and 5 neutrons; therefore its mass number is (4 + 5 =) 9.

• The charge of the atom is 0. This is because it has 4 protons which give it a +4 charge, but it also has 4 electrons which give it a -4 charge. Therefore its net charge is: 4 + (-4) = 0.

The required work performed by the seat upon her is calculated to be 4710 J. Correct option is E.

Centripetal acceleration of the object is calculated as,

a = v²/r

where,

v is velocity

r is radius

Putting it in the equation of force, F = m × v²/r

⇒ 30(5)²/5 = 30(25/5) = 30(5) = 150 N

The distance travelled is nothing but the circumference of the circle 2 π r = 2 π (5) = 10 π m

We also know the relation between work and force as,

W = Force × distance = 150(10 π) = 1500π J = 4710 J

Thus, the correct choice is E.

To know more about work:

https://brainly.com/question/896651

#SPJ4

Answer:

Crumple Zones are parts of a car that are designed to deform and absorb large amounts of energy from car collisions and impacts. This helps reduce the force that acts on the driver in a car accident [1]. 2: Newton's Second Law states that Force= Mass x Acceleration

Explanation:

Answer:

Hydrogen.

Hydrogen can be considered to be in Group 1 or Group 17 because it has properties similar to both groups. Hydrogen can participate in both ionic and covalent bonding. When participating in covalent bonding, hydrogen only needs two electrons to have a full valence shell.

Explanation:

A bored kid willing to help,

as always hope you're having a splendiferous day.

Water waves shake energy over the surface of the sea, while sound waves thump energy through the body of the air. Sound waves are compression waves. They're also called longitudinal waves because the air vibrates along the same direction as the wave travels.

Answer:

The angle is 16 degree.

Explanation:

A uniformly charged infinite plane, density σ = 4.10-9 C/cm2, is placed vertically in air. A small ball of mass 8 g, with charge q = 10-8 C, hangs close to the plane, so that the string is initially parallel to the plane. Take g = 9.8m/s2 . In equilibrium, by what angle does the string hanging from the ball make an angle with the plane?

Surface charge density,   σ = 4 x 10^-9 C/m^2

charge, q = 10^-8 C

mass, m = 0.008 kg

Let the tension is the string is T and the angle is A.

\(T sin A = q E....(1)\\\\T cos A = m g .... (2)\\\\Divie (1) by (2)\\\\tan A =\frac{q E}{m g}\\\\tan A = \frac{10^{-8}\times 4\times 10^{-5}}{2\times 8.85\times 10^{-12}\times 0.008\times9.8}\\\\tan A = 0.288\\\\A = 16 degree\)

Answer:

The velocity of the mass after 10.0 seconds is 50.0 m/s.

Explanation:

Explanation: We can use the formula v = (F t)/m to calculate the velocity of the mass. Given that the force applied is 10.0 N, the mass is 2.00 kg, and the time elapsed is 10.0 s, we can substitute these values into the formula to get:

v = (10.0 N * 10.0 s) / 2.00 kg = 50.0 m/s

Therefore, the velocity of the mass after 10.0 seconds is 50.0 m/s.

Answer:

Explanation:

There are three modes of heat transfer.

1. Conduction: It is the mode of heat transfer when the object is in contact with hot body and gradually the heat transfer from the hot end to the cold end.

2. Convection: It is the mode of heat transfer in which the molecules gets heated and moves up and the cold molecules comes down and the process continues till the entire liquid or gas is at same temperature.

3. Radiation: It is the process of heat transfer in which the heat is transferred in the form of heat waves.

(a) When the cook pot is placed on flame, it is the example of conduction.

(b) When the liquid is placed on the flame in a container, the liquid gets heated by the mode of convection.  

(c) We feel heat as we stand near the flame so it is the example of radiation.

(d) because the heat is trapped so it becomes hot in lesser time.

The media is a powerful influence because it is constantly present around us.

Medium is defined as a means of communication such as radio and television, newspapers, magazines, and the internet that can greatly influence people all around here.

The three types of media are news media, social media, and web media and it is also known as earned media shared media, and owned media. Other forms of modern media are print media, movies, video games, and television, etc.

The influence of mass media can affect many aspects of human life which can include voting, views, and beliefs of people, or changing an individual knowledge of a specific topic due to the provision of false information.

So we can conclude that option B is the right answer.

Learn more about media here: https://brainly.com/question/27175118

#SPJ1

The pattern formed by iron filings around magnets shows the magnetic field lines produced by the magnets.

Magnetic field lines are described as imaginary lines, which depict the strength and direction of the magnetic field.

The iron filings align themselves along the magnetic field lines, which helps to provide a visual representation of the field's direction and shape. The filings tend to concentrate near the poles of the magnets, where the magnetic field is stronger.

This pattern is important as it helps visualize the magnetic field and understand its characteristics, such as the shape, direction, and strength of the magnetic field produced by the magnets.

Learn more about magnetic field at:

https://brainly.com/question/14411049

#SPJ1

Answer:

16.77 m/s, 26.57° south of west

Explanation:

The two velocities form a right triangle.  Use Pythagorean theorem to find the magnitude of the resultant velocity.

v² = (-15 m/s)² + (-7.5 m/s)²

v = 16.77 m/s

Use trig to find the angle.

tan θ = ((-7.5 m/s) / (-15 m/s))

θ = 26.57° south of west

Answer:

870 m

Explanation:

d = Vit + 1/2at²

a = ΔV/Δt = (85 m/s - 60 m/s) / (12 s) = (25 m/s) / 12 s = 2.08 m/s²

d = (60 m/s)(12 s) + 1/2 (2.08 m/s²)(12 s)² = 870 m

Answer:

The automobile traveled 870 meters during the 12 second interval.

Explanation:

We can use this kinematics equation to evaluate how far the automobile traveled.

\(\overline v=\frac{\Delta x}{\Delta t}\)

Note

\(\overline v\) is the average velocity

\(\Delta x\) is the change in position (displacement)

\(\Delta t\) is the change in time (time interval)

The formula for average velocity is

\(\overline v=\frac{V_f-V_o}{2}\)

We are given

\(V_f=85\\V_o=60\\\Delta t=12\)

First lets evaluate the average velocity.

\(\overline v=\frac{85-60}{2}\)

\(\overline v=72.5\)

Rearranging our kinematics equation to isolate \(\Delta x\) we get

\(\Delta x=\overline v \Delta t\)

Now lets evaluate \(\Delta x\).

\(\Delta x=72.5*12\\\Delta x=870\)

There are many different ways you can solve this; I could have used a different equation.

Answer:

The right answer is "18 m/s".

Explanation:

The given values are:

Velocity,

V = 6 m/s

Tension,

T = 9 N

As we know,

⇒  \(V=(\frac{T}{u})^{\frac{1}{2}}\)

On substituting the given values, we get

⇒  \(6=(\frac{9}{u} )^{\frac{1}{2}}\)

⇒  \(36=\frac{9}{u}\)

⇒  \(u=\frac{9}{36}\)

⇒     \(=\frac{1}{4}\)

Now,

For 81 N the velocity will be:

⇒  \(v=(\frac{81}{(\frac{1}{4} )} )^{\frac{1}{2} }\)

⇒     \(=18 \ m/s\)

Answer:

Hi there!

Using Hooke's Law:

F = kx

F = Force (N)

k = Spring constant (N/m)

x = displacement (m)

Begin by converting cm to m:

280 cm = 2.8 m

Now, plug in the givens:

25 = 2.8k

k = 8.93 N/m

Answer:

The beetles consume the trees as food. So, if the trend continues, it’s likely that the trees will die out in the coming years

Explanation:

1). Wrap more turns of the wire around the nail.

2). Increase the electrical current through the wire. (Do this by inserting another battery in the circuit, in series with the first one.)

f= 2000hz

w.l. = .35m

speed = f × w.l.

700m/s

now dist. = 1500 m

time= d/sp.

1500/700

15/7s

2.142sec.