In Eric's planning to take photos of the Plato Crater, Copernicus Crater and Rupes Cauchy Crater, he is trying to
figure out if the craters are always facing the earth. He knows that the moon spins on its axis. Doesn't that mean the
craters will be facing away from the earth at some point in the moon/lunar cycle as the moon orbits the earth?

Are the carters always facing the earth as the moon orbits the earth?

Please help!!!

Answer:

[tex]P_J=195N[/tex]

Explanation:

From the question we are told that

[tex]Mass\ of T-joe\ M_J=65\\Velocity\ of T-joe\ V_J=3m/s\\Mass of\ T-Brud\ M_B=50kg\\Velocity\ of T-Brud\ V_B=3m/s\\[/tex]

Generally the equation for momentum is mathematically given by

[tex]P=mv[/tex]

Therefore

T-Joe momentum [tex]P_J[/tex]

[tex]P_J=65*3[/tex]

[tex]P_J=195N[/tex]

Answer:

B

Explanation:

The two most abundant elements in a main sequence star are the hydrogen and helium. Thus, the correct option is B.

The main sequence is a continuous and distinctive band of the stars which appears on the plots of stellar color versus the brightness. These color-magnitude plots are known as the Hertzsprung–Russell diagrams, named after their co-developers, Ejnar Hertzsprung and Henry Norris Russell. The stars on this band are known as the main-sequence stars or the dwarf stars. These are the most numerous true stars present in the universe and include the Sun.

Hydrogen is the most abundant element which is possessed by the main sequence star. After hydrogen atom, the most abundant element which is found is helium. This gets accumulated in the star's core through the process of nuclear fusion.

Therefore, the correct option is B.

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Answer:

Voltage difference V = 18 volt

Explanation:

Given:

Resistance R = 6 ohms

Current charge I = 3 amps

Find:

Voltage difference V

Computation:

Voltage difference V = [Current charge][Resistance]

Voltage difference V = 6 x 3

Voltage difference V = 18 volt

Answer:

It is a base

Explanation:

Because

Answer:it’s a base

Explanation: this is because the bases have a very bitter taste but a very slippery feel at the same time leading to a substance with a ph of 8.5 and the red turning to blue so this is a base

Answer:For a perfectly elastic collision, the final velocities of the carts will each be 1/2 the velocity of the initial velocity of the moving cart. For a perfectly inelastic collision, the final velocity of the cart system will be 1/2 the initial velocity of the moving cart.

Explanation:

Answer:

Cp = 397 [J/kg*K]

Explanation:

By means of the energy equation for heat transfer in substances and objects, we can calculate the specific heat. In this way, we have the following equation.

[tex]Q=m*C_{p}*DT[/tex]

where:

Dt = temperature change = 10 [K]

m = mass = 0.5 [kg]

Q = heat = 1985 [J]

Cp = specific heat [J/kg*K]

Now replacing:

[tex]1985=0.5*C_{p}*10\\C_{p}=\frac{1985}{0.5*10}\\C_{p}=397[\frac{J}{kg*K} ][/tex]

Answer:

You will do twice the work of climbing 1 stair.

Explanation:

To obtain the answer to the question, we shall determine the work done on each case. This is illustrated below:

Case 1 ( climbing 2 stairs):

Mass (m) = m

One stair = 4 m

Height (h) = 2 × 4 = 8 m

Acceleration due to gravity (g) = 10 m/s²

Workdone 1 (Wd₁) =?

Wd₁ = mgh

Wd₁ = m × 10 × 8

Wd₁ = 80 × m

Case 2 (Climbing 1 stair)

Mass (m) = m

Height (h) = 4 m

Acceleration due to gravity (g) = 10 m/s²

Workdone 2 (Wd₂) =?

Wd₂ = mgh

Wd₂ = m × 10 × 4

Wd₂ = 40 × m

Now comparing the Workdone in both case:

Workdone 1 (Wd₁) = 80 × m

Workdone 2 (Wd₂) = 40 × m

Wd₁ / Wd₂ = 80 × m / 40 × m

Wd₁ / Wd₂ = 2

Cross multiply

Wd₁ = 2 × Wd₂

Thus, we can see that the Workdone in climbing 2 stairs is twice the Workdone in climbing 1 stair.

Therefore, you will do twice the work of climbing 1 stair.

Answer:

MKS stands for Meter, Kilogram and second. In this system of unit mass is given in Kilogram, length in meter and time in second. ... CGS system stands for Centimeter- Gram- Second system. In CGS system, length is measured in centimeters mass is measured in grams and time is in seconds.

Answer:

the work done by friction is 12 J.

Explanation:

Given;

mass of the car, m = 2 kg

initial speed of the car, u = 4 m/s

final speed of the car, v = 2 m/s

The work done by friction is equal to change in kinetic energy of the car,

W = ΔK.E

W = ¹/₂m(v² - u²)

W = ¹/₂ x 2 (2² - 4²)

W = -12 J (the negative sign indicates that it is a wasted energy)

Therefore, the work done by friction is 12 J.

Answer:

The hydraulic lift and the hydraulic brake are virtually the same machine. Both of them use some means of applying pressure to a hydraulic fluid that forces a piston or pistons elsewhere to move outward with greater force. There are only two differences between the hydraulic lift and the hydraulic brake. One is that all the push is delivered by one cylinder in a lift and by either two or four cylinders in a brake system. The other difference is that in a hydraulic lift the pump moves the lift piston out in a series of movements while in a brake system the brake pedal moves the brake pistons out in one short movement.

As fluid is forced into the lift cylinder it forces the lift piston upward. The lift cylinder is a lot wider than the pump cylinder. This means that the area of the lift piston is a lot greater than the area of the pump piston. Because Pascal's Principle guarantees that the pressure in a fluid is the same everywhere and the area that pressure is applied over is greater at the lift cylinder, the force applied by the lift cylinder must be greater. The hydraulic lift takes the long low-force motions of the pump piston and converts then into short high-force motions of the lift cylinder.

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Hydraulic brake and Hydraulic lift uses fluid to transmit power from one end to another.

hydraulic brake stops motion and hydraulic lift create motion

The major difference is  hydraulic brake used fluid to stop motion, while the  hydraulic lift used fluid to create/cause motion that is transport items/persons from one end to another.

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Force, pressure, and charge are all what are called derived units. They come from algebraic combinations of base units, measures of things like length, time, temperature, mass, and current. Speed, for instance, is a derived unit, since it's a combination of length and time in the form [speed] = [length] / [time] (miles per hour, meters per second, etc.)

Force is defined with Newton's equation F = ma, where m is an object's mass and a is its acceleration. It's unit is kg·m/s², which scientists have called a Newton. (Example: They used 9 Newtons of force)

Pressure is force applied over an area, defined by the equation P = F/A. We can derive its from Newtons to get a unit of N/m², a unit scientists call the Pascal. (Example: Applying 100 Pascals of pressure)

Finally, charge is given by the equation Q = It, where I is the current flowing through an object and t is how long that current flows through. It has a unit of A·s (ampere-seconds), but scientist call this unit a Coulomb. (Example: 20 Coulombs of charge)

Answer:

In a pulley, the ideal mechanical advantage is equal to the number of rope segments pulling up on the object. The more rope segments that are helping to do the lifting work, the less force that is needed for the job.

Answer:

The x represents the reference point on a motion map

Explanation:

-Motion maps are another way to represent the motion of an object. (other representations are graphical and mathematical models)

Answer:

The x represents the reference point on a motion map. Explanation; -Motion maps are another way to represent the motion of an object. (other representations are graphical and mathematical models).

Explanation:

Answer:

A. At warm tempetures, molecules move around more.

Explanation:

I'm at k12 and I just took the test got it right. Physical Science: Unit 2 Test

Answer:

At warm temperatures, molecules move around more.

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Answer:

v = 381 m/s

Explanation:

Linear Speed

The linear speed of the bullet is calculated by the formula:

[tex]\displaystyle v=\frac{x}{t}[/tex]

Where:

x = Distance traveled

t = Time needed to travel x

We are given the distance the bullet travels x=61 cm = 0.61 m. We need to determine the time the bullet took to make the holes between the two disks.

The formula for the angular speed of a rotating object is:

[tex]\displaystyle \omega=\frac{\theta}{t}[/tex]

Where θ is the angular displacement and t is the time. Solving for t:

[tex]\displaystyle t=\frac{\theta}{\omega}[/tex]

The angular displacement is θ=14°. Converting to radians:

[tex]\theta=14*\pi/180=0.2443\ rad[/tex]

The angular speed is w=1436 rev/min. Converting to rad/s:

[tex]\omega = 1436*2\pi/60=150.3776\ rad/s[/tex]

Thus the time is:

[tex]\displaystyle t=\frac{0.2443\ rad}{150.3776\ rad/s}[/tex]

t = 0.0016 s

Thus the speed of the bullet is:

[tex]\displaystyle v=\frac{0.61}{0.0016}[/tex]

v = 381 m/s

There would be more hurricanes because hurricanes from by water.

More rain because you would get more precipitation.

Higher flooding if a storm comes through.

Answer:

41.576 N

Explanation:

Resolving force in the inclined plane in the x and y directions gives us;

F_x = mg sin θ

F_y = mg cos θ

Thus;

F_x = 4.8 × 9.81 × sin 28

F_x = 22.106 N

F_y = 4.8 × 9.81 × cos 28

F_y = 41.576 N

We can use Newton's second law to find the normal force.. Thus;

N - F_y = 0.

Where N is normal force;

N = 41.576 N

Answer: The property that will best provide evidence that the samples are solid includes:

--> if the substance has a definite shape,

-->if the substance has a definite volume

--> if it's tightly packed.

Explanation:

According to the kinetic theory of matter, every substance consist of very large number of very small particles called molecules. These molecules, which are made up of atoms that are the smallest particles of a substance that can exist in a free state.

Matter can exist in the following states:

--> Solid state

--> liquid state or

--> Gaseous state.

The general property of a substance that is in gaseous state includes:

--> Definite shape: A substance can be grouped as a solid if it's shape is fixed that is, it doesn't depend on the shape of other materials.

--> Definite volume: A substance can be grouped as a solid if it occupies its own shape. This is due to the force of cohesion among its molecules.

--> Tightly packed: A substance can be grouped as solid if the molecular movements of the particles are negligible.

From the samples under observation by Juan and kym, if the sample that possesses the above described qualities, it is a solid rather than liquid or gas.

Explanation:

The fundamental units are such types of units that are not dependent upon any other units. In this problem, we need to find the units that need to be convert before being used for a calculation.

Option (1) m

m stands for meter. It is one of the fundamental unit. It should remains the same.

Option (2) cm

cm stands for centimeter. If a unit is in cm, then it must be converted to meter using the conversion i.e. [tex]1\ cm=100\ m[/tex].

Option (3) ks

ks stands for kilo second. If a unit is in ks, it must be converted to second (s) using the conversion i.e. [tex]1\ ks=1000\ s[/tex].

Option (4) kg/m³

The SIT unit of density is kg/m³. It is unit that is derived from the fundamental unit. It should remains the same.

Answer:

So, the options that need to be converted before being used for a calculation are (b) and (c).

Reference:

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Answer:

90.07794 grams

Explanation:

Answer:

Infared light

Explanation:

Answer: 1.72J

Just figured this out a while ago

Answer:

Amoeba, paramecium, euglena are the examples of unicellular organism

Explanation:

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Answer:

I had that on 6th grade here u go

His third law states that for every action in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Notice that the forces are exerted on different objects.

Answer:

all

Explanation:

i was in a question kinda like this and I think it's all