# What is the answer, friends?

QUESTION POSTED AT 10/10/2019 - 09:39 AM

QUESTION POSTED AT 10/10/2019 - 09:39 AM

Your answer is C. hope this helped! :)

**Answer:**

**It is larger than the second star.**

**Explanation:**

Stars that are closer will also appear brighter . Since both the stars are at equal distance from the Earth, the one which is larger appears more brightly than the other. Thermonuclear fusion reactions that occur in the core of a star are the reason behind the brightness of a star. Larger stars have larger fuel (hydrogen, helium gases). Larger ones have more energy and shine much brighter.

Even more massive stars are also brighter. So younger stars are not that massive to appear very bright, compared to massive and larger stars.

ANSWERED AT 17/10/2019 - 08:15 AM

QUESTION POSTED AT 17/10/2019 - 08:15 AM

The answer should be d

ANSWERED AT 17/10/2019 - 08:10 AM

QUESTION POSTED AT 17/10/2019 - 08:10 AM

It will be a virtual image that appears on the left side of the mirror

i hope this helps!

i hope this helps!

ANSWERED AT 17/10/2019 - 07:19 AM

QUESTION POSTED AT 17/10/2019 - 07:19 AM

Bigger objects have more gravitational pull. Bigger, meaning the size and mass. The closer you are to the object, the stronger the pull is. The earth is much bigger, and has a bigger mass than the moon, meaning that the moon is able to orbit around the earth. You are closer to the earth, so you dont randomly get pulled towards thw moon, because earts gravitational pull is stronger than the moons.

ANSWERED AT 17/10/2019 - 06:41 AM

QUESTION POSTED AT 17/10/2019 - 06:41 AM

The directions of magnetic force and magnetic field lines are shown in the figure.

The direction to find out the magnetic field lines is given by right hand curl rule. If the thumb shows the direction of current, then the curling fingers show the direction of magnetic field lines.

The direction of force can be given by right hand thumb rule, where

Thumb - Direction of magnetic field lines

**For**efinger - Magnetic** for**ce

**C**entre finger - **C**urrent

Such that forefinger, centre finger and thumb must be at 90 degrees to each other.

The direction to find out the magnetic field lines is given by right hand curl rule. If the thumb shows the direction of current, then the curling fingers show the direction of magnetic field lines.

The direction of force can be given by right hand thumb rule, where

Thumb - Direction of magnetic field lines

Such that forefinger, centre finger and thumb must be at 90 degrees to each other.

ANSWERED AT 17/10/2019 - 05:55 AM

QUESTION POSTED AT 17/10/2019 - 05:55 AM

The answer to this question is c

"lets exercise and eat healthy foods together"

"lets exercise and eat healthy foods together"

ANSWERED AT 17/10/2019 - 05:33 AM

QUESTION POSTED AT 17/10/2019 - 05:33 AM

F=dP/dt. So you want the momentum to change as slowly as possible in time to minimize the force. So as you catch the egg, let your hand move backward with it for awhile, slowly bringing it to a stop. If you hold your hand steady when you catch it the force due to the impact could break it.

ANSWERED AT 17/10/2019 - 05:18 AM

QUESTION POSTED AT 17/10/2019 - 05:18 AM

The first two in a way use indiction. A generator causes an induced voltage on the output terminals by rotating a coil in a magnetic field (Faraday's Law of magnetic induction). A telephone microphone has a membrane that is excited (moved) by sound waves and on the back of this membrane is a magnet. The magnet is placed inside the core of a coil of wire that has a voltage induced in it by the changing magnetic flux through the loop as it vibrates.

A turbine is moved by fluids or air, and while they can drive generators they themselves do not require induction to operate

A turbine is moved by fluids or air, and while they can drive generators they themselves do not require induction to operate

ANSWERED AT 17/10/2019 - 05:15 AM

QUESTION POSTED AT 17/10/2019 - 05:15 AM

20.56 Newtons

The force appled to appose the static friction is

F = × m × g

Where is u_{s} is the coefficient of static friction

or F = 51.4 N

Now, the box is sliding from the wall, so kinetic friciton comes into play. and the value of force is

F' = F

or F' = 0.40 × 51.4 N

or F' = 20.56 N

The force appled to appose the static friction is

F = × m × g

Where is u_{s} is the coefficient of static friction

or F = 51.4 N

Now, the box is sliding from the wall, so kinetic friciton comes into play. and the value of force is

F' = F

or F' = 0.40 × 51.4 N

or F' = 20.56 N

ANSWERED AT 17/10/2019 - 04:06 AM

QUESTION POSTED AT 17/10/2019 - 04:06 AM

A. Problem with Shyness

Just took the Test

Just took the Test

ANSWERED AT 17/10/2019 - 02:56 AM

QUESTION POSTED AT 17/10/2019 - 02:56 AM

19-? Is the exact p.d across the 114-?resistor.

Current will different

But p.d will same in parallel circuit .

Current will different

But p.d will same in parallel circuit .

ANSWERED AT 17/10/2019 - 02:37 AM

QUESTION POSTED AT 17/10/2019 - 02:37 AM

Total current flow in circuit=0.75

Current flow through third resistor=0.75-(0.24+0.22)

=0.29

Current flow through third resistor=0.75-(0.24+0.22)

=0.29

ANSWERED AT 17/10/2019 - 02:34 AM

QUESTION POSTED AT 17/10/2019 - 02:34 AM

Wavelength and frequency are related and they are indirectly related The higher the frequency of a light, the shorter the wavelength would be. The constant of proportionality of this relation is the speed of light. We calculate as follows:

wavelength = speed of light / frequency

wavelength = 3x10^8 / 3.0x10^21

**wavelength = 1x10^-13 m**

wavelength = speed of light / frequency

wavelength = 3x10^8 / 3.0x10^21

ANSWERED AT 17/10/2019 - 02:19 AM

QUESTION POSTED AT 17/10/2019 - 02:19 AM

**Answer: 1327 kg**

Explanation:

First of all, we can notice that the forces along the vertical direction (gravity and normal force) are equal and opposite, so they cancel each other and we can ignore them.

The relationship between the net force on the horizontal direction and the acceleration of the wagon is given by Newton's second law:

where

is the net force on the wagon

m is the mass of the wagon

a is the acceleration

In this problem, the net force on the wagon is:

the mass is unkown

and the acceleration is

So we can re-arrange the equation above to find the mass of the wagon:

ANSWERED AT 17/10/2019 - 02:18 AM

QUESTION POSTED AT 17/10/2019 - 02:18 AM

1.Phases - Gas, liquid and solid. Gas, liquid, and solid are known as the three states of matter or material, but each of solid and liquid states may exist in one or more forms.

ANSWERED AT 17/10/2019 - 01:51 AM

QUESTION POSTED AT 17/10/2019 - 01:51 AM

Answers A, C, and D.

ANSWERED AT 17/10/2019 - 01:19 AM

QUESTION POSTED AT 17/10/2019 - 01:19 AM

It might be c I'm not sure either. Hope I helped

ANSWERED AT 16/10/2019 - 11:37 PM

QUESTION POSTED AT 16/10/2019 - 11:37 PM

**Explanation:**

There are three methods of heat transfer: Conduction, convection and radiation.

**Conduction: In this process, Heat flows from hotter body to colder body but when two bodies are placed in contact with each other until the temperature on both bodies become equal.**

**Convection:** There is an actual movement of the mass involved due to the temperature difference.

Radiation: Radiation is the emission of the energy. Heat travels through vacuum in the radiation.

From the given problem, the thermal energy is transferred during conduction.

The correct options are as follows:

Thermal energy is transferred between particles that are in direct contact with each other.

Thermal energy is transferred between objects of different temperatures.

Thermal energy is transferred from fast-moving particles to slow-moving particles.

ANSWERED AT 16/10/2019 - 11:01 PM

QUESTION POSTED AT 16/10/2019 - 11:01 PM

The object has to move!

Thanks and Rate!

Thanks and Rate!

ANSWERED AT 16/10/2019 - 11:00 PM

QUESTION POSTED AT 16/10/2019 - 11:00 PM

We know distance of the object from the lens D0=10 cm, height of the object H0=3 cm, focal length f=2 cm and we want to know the image height Hi.

First we have to calculate the distance of the image Di from the lens using the lens equation:

(1/f)=(1/D0)+(1/Di)

(1/Di)=(1/f)-(1/D0)=(1/2)-(1/10)=4/10

Di=10/4=2.5 cm.

Now we can calculate height of the image Hi from the magnification formula:

M=-(Di/D0)=(Hi/H0)

Hi={-(Di/D0)}*H0={-(2.5/10)*3}=-0.75 cm.

So height of the image is Hi=-0.75 cm. The minus sign tells us the image is inverted.

First we have to calculate the distance of the image Di from the lens using the lens equation:

(1/f)=(1/D0)+(1/Di)

(1/Di)=(1/f)-(1/D0)=(1/2)-(1/10)=4/10

Di=10/4=2.5 cm.

Now we can calculate height of the image Hi from the magnification formula:

M=-(Di/D0)=(Hi/H0)

Hi={-(Di/D0)}*H0={-(2.5/10)*3}=-0.75 cm.

So height of the image is Hi=-0.75 cm. The minus sign tells us the image is inverted.

ANSWERED AT 16/10/2019 - 10:40 PM

QUESTION POSTED AT 16/10/2019 - 10:40 PM

A should be the answer since it makes the water down there cold and the air also. (asked my grandma haha

ANSWERED AT 16/10/2019 - 10:39 PM

QUESTION POSTED AT 16/10/2019 - 10:39 PM

So we want to know the height of the image Hi. The formula for magnification M is:

M=(Hi/H0)=-(Di/D0), where Hi is the height of the image, H0 is the height of the object, Di is the distance of the image form the lens and D0 is the distance of the object from the lens.

Here we have: H0=6 cm, Di=4 cm and D0= 8 cm.

Hi=-(Di/D0)*H0 = -(4/8)*6=-24/8=3 cm.

So the height of the image Hi=3 cm.

M=(Hi/H0)=-(Di/D0), where Hi is the height of the image, H0 is the height of the object, Di is the distance of the image form the lens and D0 is the distance of the object from the lens.

Here we have: H0=6 cm, Di=4 cm and D0= 8 cm.

Hi=-(Di/D0)*H0 = -(4/8)*6=-24/8=3 cm.

So the height of the image Hi=3 cm.

ANSWERED AT 16/10/2019 - 10:07 PM

QUESTION POSTED AT 16/10/2019 - 10:07 PM

the answers are B, C, and F

ANSWERED AT 16/10/2019 - 10:01 PM

QUESTION POSTED AT 16/10/2019 - 10:01 PM

**Answer: What substances dissolve in ocean water?**

**Explanation:**

A scientific investigation can be define as the fact finding inquiry in which answers to the questions related to science can be determined. The scientific investigation can be conducted using scientific methodologies and experimental procedures.

**What substances dissolve in ocean water?** is the correct question which can be answered using experimental trials and observations.

ANSWERED AT 16/10/2019 - 09:46 PM

QUESTION POSTED AT 16/10/2019 - 09:46 PM

**Answer:**

v = 0.83 m/s Towards East

**Explanation:**

As we know that average velocity is defined as

here we know that the displacement is 50 meter towards east

and the total time taken must be 60 s to beat all

So here we will have

now we will have

direction of this velocity will be same as the direction of displacement so correct answer will be

v = 0.83 m/s towards east

ANSWERED AT 16/10/2019 - 09:41 PM

QUESTION POSTED AT 16/10/2019 - 09:41 PM

**Answer:**

C

**Explanation:**

ANSWERED AT 16/10/2019 - 09:33 PM

QUESTION POSTED AT 16/10/2019 - 09:33 PM

The mathematical definition of work (W) is force (F) multiplied by distance (x). In order to determine the distance for fixed force and work the above equation needs to be rearranged to make x the subject. The work divided by the force is equal to the distance. In this case the mother can push the baby carriage by a distance equal to 2920 divided by 62, which is 47.1 metres.

ANSWERED AT 16/10/2019 - 08:40 PM

QUESTION POSTED AT 16/10/2019 - 08:40 PM

T= 1.2 seconds

Other questions have been asked about this

Other questions have been asked about this

ANSWERED AT 16/10/2019 - 08:07 PM

QUESTION POSTED AT 16/10/2019 - 08:07 PM

It only work for science

ANSWERED AT 16/10/2019 - 07:06 PM

QUESTION POSTED AT 16/10/2019 - 07:06 PM

Red green oragnge and black

ANSWERED AT 16/10/2019 - 06:59 PM

QUESTION POSTED AT 16/10/2019 - 06:59 PM