An astronaut can accelerate in his rocket to 120 m/s (velocity) in 4 seconds.

-1.5 m/s^2 x 1.2 seconds = -1.8 m/s

It is a negative value which means the object slowed down. The object would have originally been going that amount more.

5.0 + 1.8 = 6.8 m/s

answer: 6.8 m/s

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Wavelength, Wavespeed and frequency depends on each other in the following way :

[tex]\qquad \sf  \dashrightarrow \: frequency = \dfrac{wave \: \: velocity}{wavelength} [/tex]

[tex]\qquad \sf  \dashrightarrow \: f = \dfrac{389}{8} [/tex]

[tex]\qquad \sf  \dashrightarrow \: f \approx 48.62 \: \: hertz[/tex]

And we know the Reciprocal relationship between frequency and period ~

So, let's find it's period •

[tex] \sf{\qquad \sf  \dashrightarrow \: t = \dfrac{8}{389}} [/tex]

[tex] \sf{\qquad \sf  \dashrightarrow \: t \approx 0.02 sec } [/tex]

Answer:

F = K M / R^2      acceleration due to gravity at R

F2 / F1 = (R1 / R2)^2

R1 = radius of earth = 6.37E6 m

R2 = 6.37E6 + 8.85E3 = 6.38E6

F2 / F1 = .9984^2 = .997

The value of g would only be about .003 less than at the surface

Answer:

Yes

Explanation:

The wind net force acting on the sail is doing work.   (The 'net' force takes into account the force of friction between the boat hull and the water)

Answer:

On the back of the spacesuit is a backpack called the Primary Life Support Subsystem. This backpack contains the oxygen that astronauts breathe during a spacewalk. It removes carbon dioxide that astronauts exhale. The backpack also provides electricity for the suit.

Explanation:

got a 100%.

brainliest, please?

Explanation:

Take F=ma

a = F/m

For a higher, F higher or m lower

Means higher horse power for engine or lower mass for the car

An engineer can make a car to accelerate faster by having higher horsepower for the engine or less mass for the car.

Acceleration is defined as the rate of change of velocity of an object with respect to time. These are vector quantities because they have both direction and magnitude. The orientation of an object's acceleration is given by the orientation of the net force acting on that object.

Acceleration in a car has everything to do with the torque and horsepower on the car where these two characteristics essentially determine the speed of the vehicle. The higher the torque and horsepower, the faster we go

Acceleration is expressed in terms of Force which is equals to

F=ma (m=mass, a= accelaration)

So, a = F/m

For a higher, F will be higher or m will be lower

Thus, an engineer can make a car to accelerate faster by having higher horsepower for the engine or less mass for the car.

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The value of the peak power will be 50 W. The peak power is found as two times of the average power. Option C is correct.

Average power is a ratio of total work done by the body to the total time. Its unit is the watt. It is also defined as the rate of total work done by the body.

The given data in the problem is;

Average power = 25 W

Peak power = ?

The peak power is found as;

Peak power = 2 × average power

Peak power=2×25

Peak power = 50 W

Hence, the value of the peak power will be 50 W.

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Based on the mass of the object, and its acceleration, the time taken to reach a speed of 2.0 m/s is 4 seconds.

The time can be found as:

= Required speed / Acceletation

Accelaration is:

= Force / Mass

= (0.99iN + 0jN) / 2kg

= 0.5 ms⁻²

Time taken is:

= 2 / 0.5

= 4 seconds

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Since the force that axts on the object  is the resultant force, the time taken is 0.8 s.

Since force is a vector, it can be resolved into its components. From the complete question, the componenets of the force are;

Vertical component;

Horizontal component;

Resultant force = √(3)^2 + (4)^2 = 5N

Now;

F = ma

a = F/m

a = 5N/2. 0 kg

a = 2.5 m/s^2

Given that;

v = u + at

since u = 0 (object started from rest)

2 = 2.5 * t

t = 2/2.5 = 0.8 s

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The energy released per kilogram of fuel used is mathematically given as  

energy release per kg= 6.702*10^{-13}. This is further explained below.

Generally, is simply defined as

Energy used per person per year in US = 3-5 X 10^11

Population (No. of person)= 3.1x 10^8

Mass of feut required = 3.5x10^11 x3-1x10 8 x 10 )/6.703 X10^{13} kg

Mass of feut required = 1.62x10^{33}kg

Solution: Mev in Joule 6 = 10 1.60* I0^{-19} J

1 Mev= 1.602 X 10 T

energy release per kg= 1.602*10^{13}/2.39x10^{-3}

energy release per kg= 6.702*10^{-13}

In conclusion, Energy

energy release per kg= 6.702*10^{-13}

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Answer:

Dont

Explanation:

Know

Answer:

Its D , Its is four times larger

Explanation:

I really hope this helps :)

The statement which explains why Karyn's approach is an investigation instead because she is not attempting to change outcomes.

This is defined as the systematic study of a subject topic and involves various forms of observation.

It however doesn't involve measuring variable as the outcomes aren't changed but only recorded.

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sugar dissolves in water = solubility (solvent)

causes ice cubes to get bigger in the ice tray = expand upon freezing

warm water but cold water in the spring = heat capacity/specific heat

"film" on top of water = surface tension

stickiness of water = cohesion

Answer:

See below ~

Explanation:

sugar dissolves in water ⇒ solubility (solvent)

causes ice cubes to get bigger in the ice tray ⇒ expand upon freezing

warm air but cold water in the spring ⇒ heat capacity/specific heat

"film" on top of water ⇒ surface tension

stickiness of water ⇒ cohesion

Icy pieces that orbit in the same region as the orbit of Pluto are believed to be members of the Kuiper belt.

The Kuiper belt is a shape-disc formation in the solar system observed from Neptune and more away from our sun.

The Kuiper belt consists of different celestial bodies including among others icy pieces, planets, and comets.

In conclusion, icy pieces that orbit in the same region as the orbit of Pluto are believed to be members of the Kuiper belt.

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When current-carrying wire with many loops is connected across the battery, the magnetic field is created in the wire.  A current-carrying wire with many loops is called a Solenoid.

The current is the stream of electrons flowing from positive terminal of the battery to the negative terminal so as to generate electricity.

When the current flow through wire is bent into the shape of circle and continued making several loops. This wire form is called Solenoid.

Thus, a current-carrying wire with many loops is called a Solenoid.

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Answer:

C.) A solenoid.

Explanation:

Edge, 2022.

(See the attachment below.)

Answer:

1c 2d 9e 6n 3j 9i

Explanation:

That is at least half i will let you Finish it

Answer:

1=e

2=g

3=h

4=f

5=j

6=b

Explanation:

.......

The most accurate among the options is 13°c almost-equals 55.0°f, when you round down 55.4, you get 55.0

Hence, option D) is the most accurate.

Scale of temperature is simply a method used in calibrating the physical quantity of temperature in metrology.

Conversion of Celsius into Fahrenheit, Formula is expressed as;

Degree = (0 × 9/5) + 32 = Fahrenheit

First we check each option;

A) 24°c almost-equals 75.9°f

24°C = (24 × 9/5) + 32 = 75.2°F

B) 2°C almost-equals 35.8°f

2°C = (2 × 9/5) + 32 = 35.6°F

C) 34°C almost-equals 92.7°f

34°C = (34 × 9/5) + 32 = 93.2°F

D) 13°c almost-equals 55.0°f

13°C = (13 × 9/5) + 32 = 55.4°F

The most accurate among the options is 13°c almost-equals 55.0°f, when you round down 55.4, you get 55.0

Hence, option D) is the most accurate.

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Answer:

0.5 kg

Explanation:

» Concepts

Newton's second law, the Law of Acceleration, states that F = ma, where F = Force in Newtons, m = mass in kg, and a = acceleration in m/s^2.

» Application

We are asked to find the mass of the ball using the equation F = ma. We're also given the force and acceleration, so the equation looks like 5 = 10(m).

» Solution

Step 1: Divide both sides by 10.

Thus, the mass of the ball is 0.5 kg.

Answer:

H

Explanation:

I think it's H hope that helps

Explanation:

300,000,000 ÷ 3.00 = 100,000,000 = 10^8

So we can write 300,000,000 = 3.00 x 100,000,000 = 3.00 x 10^8.

The speed of light is 3.00 x 10^8 m/s.

Magnetic fields and electric fields are similar on the basis of the forces and its application.

An electric field is an electric property that is connected with any location in space where a charge exists in any form. The electric force per unit charge is another term for an electric field.

Magnetic and electric fields have certain similarities, are as follows;

1. Both the electric force and magnetic forces are the non-contact forces.

2. Both acts between the two entity having certain mass.

3. Both have their respective ranges.

Hence, magnetic fields and electric fields are similar on the basis of the forces and its application.

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Answer:

4905.95 N

Explanation:

F= G m1 m2 / (r^2)

  = 6.67 x 10^-11   *  2.25 * 10^20 * 6.2 * 10^10 / ( 435 500 000)^2 =

( be sure to use meters    NOT kilometers !)

The gravitational attraction between two planets is  4905.95 N

When two objects with masses are placed at a distance, there will an attractive force acting between them.

According to the Newton's law of gravitation, gravitational force is

F = Gm₁m₂ /r²

where r is the distance between the masses m₁ and m₂ and  G is the gravitational constant G = 6.67 x 10⁻¹¹ N-m²/kg²

Substitute the values into the expression, we get

F =  6.67 x 10⁻¹¹ x  2.25 x 10²⁰ x 6.20 x 10¹⁸ / (435,500 x 1000)²

F= 4905.95 N

Thus, the gravitational attraction between two planets is  4905.95 N.

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Answer:

amplitude, wavelength, frequency, and speed.

Explanation:

No matter whether you are talking about vibrations or waves, all of them can be characterized by the following four characteristics

Answer:

Mechanical Waves

Explanation:

I took the practice

Answer:

3.51 g/mL

Explanation:

Density can be found using the equation: density = mass / volume.

In this case, mass is given in grams (g) and volume is given in milliliters (mL).

You can find the density of the diamonds by plugging the given values into the formula and simplifying.

Density = mass (g) / volume (mL)

Density = 6.21 g / 1.77 mL

Density = 3.51 g/mL

Answer:

the surface of the earth would've already turned into a very hot liquid water to even exist and there would be no existence of humans on earth

Fluorine different from chlorine, bromine, and iodine,because it is the most electronegative and reactive element in the periodic table.

The periodic table is an organization of all known elements in order of increasing atomic number and repeating chemical characteristics.

They are organized in a tabular format, with a row representing an era and a column representing a group.

Elements are ordered in increasing atomic number order from left to right and top to bottom.

Elements of the same group will have the same valence electron configuration and, as a result, will have comparable chemical characteristics.

Elements in the same period, on the other hand, will have an increasing order of valence electrons. Fluorine,chlorine, bromine, and iodine are halogens.

Hence,fluorine different from chlorine, bromine, and iodine because it is the most electronegative and reactive element in the periodic table.

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Fluorine is most electronegative element and halogen in periodic table

In HF

Tires aren't made from pure rubber because it makes the weight higher which increases the engine load.

This is defined as a piece of rubber which is attached to the wheels of automobiles for movement.

Pure rubber isn't used to make tyres because it has a higher weight which increases the engine load thereby making the vehicle slower.

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