A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward? *
Answer:
10,000 N
Explanation:
Given that a rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
Solution
Since there is no any other additional forces, according to Newton's 3rd law of motion which state that:
In every action there will be equal and opposite reaction.
The action expelled by the rocket through its exhaust system is of 10000N.
The reactive force will be equal and opposite which will be same -10,000 N
Therefore, the rocket will go forward with a force of magnitude 10,000 N
BRAINLIEST TO THE CORRECT QUESTION
Answer:
the answer is B
visible light
Calculate the total momentum of the three-sphere system if the three spheres are swung at −1.0 msto the left.
Answer:
, pfx = pix + Jx.
Explanation:
The momentum principle tells us that impulse transfers momentum to an object.
If an object has 2 kgm/s of momentum, a 1 kgm/s impulse delivered to the object
increases its momentum to 3 kgm/s. That is, pfx = pix + Jx.
Just as we did with energy, we can represent this “momentum accounting” with a
momentum bar chart. For example, the bar chart of FIGURE 11.6 represents the ball
colliding with a wall in Figure 11.4. Momentum bar charts are a tool for visualizing
an interaction
You kick a ball. You are doing work on the ball when...
Which of the following shows the relationship between work and energy?
O A. Work = total energy
B. Work = gravitational potential energy
C. Work = change in kinetic energy
D. Work = change in nonconservative forces
An 80 kg runner has 3,000 J of kinetic energy. What is her velocity in m/s?
Answer: 8.6m/s
Explanation:From KE=1/2mv^2
In order to make v the subject of the formula we divide both sides by 1/2m. Thus V^2 will be left alone on the RHS. But we are looking for v and not v^2. Thus we find the square root of KE1/2m
Meaning V= sqrt[3000÷1/2 of 80]
=sqrt[3000÷40]
=sqrt(75)
=8.6m/s
Does Ganymede have phases?
Answer:
yes An analysis published in 2014, taking into account the realistic thermodynamics for water and effects of salt, suggests that Ganymede might have a stack of several ocean layers separated by different phases of ice.
Explanation:
What are some ways I can have a good wardrobe without breaking the bank?
What type of FORCE is GRAVITY?
a) PULL
b) PUSH
c) ENERGY
d) It is not a FORCE at all.
Answer:
It is (a) pull because when we are on earth we have gravity and it is pulling us down hope you have a great day!! :)
Explanation:
Compute the force on each of two electrons when they are seperated in vaccum by a distance corresponding to the approximate size of an ato. (0.100nm)
Answer:
2.304 × 10^-28 N
Explanation:
Compute the force on each of two electrons when they are seperated in vaccum by a distance corresponding to the approximate size of an ato. (0.100nm)
Solution
The formula to use is
F = K Qq / r^2
Substitute all the parameters
F = 9 × 10^9 × (1.6 × 10^-19)^2 / (0.1 × 10^-9)^2
F = 2.304 × 10^-28 / 1 × 10^-10
F = 2.304 × 10^-18 N
Therefore, the force between each of the electron is 2.304 × 10^-18 N
Convert the temperature of the air in a room air-conditioned to 20.0 degrees Celsius to equivalent temperatures on the Fahrenheit and Kelvin scales.
Answer:
Freezing Water Boiling Water
Centigrade 0 100
Fahrenheit 32 212
Kelvin 273 373
One needs to know these values for an understanding of the temperature scale
9/5 C + 32 = F Check for boiling points
5/9 (F - 32) = C
Example:
F = 9/5 C + 32 = 9/5 * 20 + 32 = 68 F
And deg K = C + 273
So 20 deg C = 293 deg K
Answer:
68 F and 293.16 K
Explanation:
T F= 1.8(20) + 32 = 68 F
TK= 20 +273.16 = 293.16 K
3. The coefficient of kinetic friction between an object and the surface upon which it is sliding is
0.40. The mass of the object is 3,2 kg. What is the force of friction?
Answer:
2
Explanation:
A SOUND WAVE WITH ITS CHARACTERISTIC PATTERN OF COMPRESSIONS AND
RAREFACTIONS IS SHOWN BELOW. A CENTIMETER RULER IS INCLUDED BELOW THE
PATTERN THE WAVELENGTH OF THIS SOUND WAVE IS HOW MANY cm?
A 2 cm
B 3 cm
C 35 cm
D. 85 cm
וייייייייייייייייי
U
0
1
2
3
4
5
6
7
8
9
10
Answer:
The wavelength is 1.7cm
Explanation:
Given
See attachment for wave pattern
Required
What is the wavelength
To do this, we simply calculate the distance between successive waves (see attachment 2 for point A and B)
Using the ruler, points A and B are at:
[tex]A = 0.6cm[/tex]
[tex]B = 2.3cm[/tex]
So, the wavelength is:
[tex]\lambda = B - A[/tex]
[tex]\lambda = 2.3cm - 0.6cm[/tex]
[tex]\lambda = 1.7cm[/tex]
If approximated, the wavelength is:
[tex]\lambda \approx 2cm[/tex]
A chocolate bar has nutritional energy content of 100KJ. If an 50kg mountain climber eats this chocolate bar and converts it all to potential energy. What altitude(height) can she climb on a mountain using this energy? Consider g=10m/s^2
Answer:
h = 200 m
Explanation:
The energy content of the chocolate is completely converted to the potential energy of the climber. Therefore:
[tex]Energy\ of\ Chocolate = Potential\ Energy\\Energy\ of\ Chocolate = mgh[/tex]
where,
m = mass of climber = 50 kg
Energy of Chocolate = 100 KJ = 100000 J
g = acceleration due to gravity = 10 m/s²
h = height = ?
Therefore,
[tex]100000\ J = (50\ kg)(10\ m/s^2)h\\\\h = \frac{100000\ J}{500\ N}[/tex]
h = 200 m
how to find a cow
write a 4-5 sentence answer
Answer:
Go out into the country. Look on a farm. Look in a barn. Listen for, "MOOOOO." You found a cow.
Explanation:
what two types of energy does a rock have as it rolls down a hill
Yong bought a can of soda at the pool and left the soda in the Sun while he swam. When Yong came back, the soda can was warm. What raised the temperature of his soda? A. the sound of people's voices B. heat energy from the Sun C. water splashed from the pool D. bees flying around the soda can
Answer:
B. heat energy from the sun
Answer those 2 questions.
What factors affect Kinetic Energy? a. Mass and Height b. Velocity and Time C. Mass and Velocity d. Mass and Time
What factors affect Potential Energy? a. Mass and Height b. Velocity and Time c. Mass and Velocity d. Mass and Time
Answer:
Q1: c
Q2: a
Explanation:
you can tell the factors by looking at the formulas for kinetic and potential energy
for question 1 look at the formula for kinetic energy
[tex]KE=\frac{1}{2} mv^{2}[/tex]
the variables needed in order to calculate an object's kinetic energy are mass and velocity.
hence, when mass and velocity changes, kinetic energy changes, showing that mass and velocity are the factors affecting kinetic energy
same thing for the second question
[tex]PE = mgh[/tex]
as g (acceleration due to gravity) is considered constant (10 [tex]m/s^{2}[/tex] ) it will not be considered as a factor
and thus, the factors affecting potential energy are mass and height
This armed
rover weighs 1900 N
and has a mass of
340 kg. What is the
acceleration due to gravity
on its current planet?
Please help
Answer:
5.59 m/s2
Explanation:
F = 1900 N
m = 340 kg
F = ma
Therefore, a = 1900/340 = 5.59
7. A jogger runs three blocks south, two blocks east, 4 blocks north and
two blocks west. What is the DISTANCE the jogger ran? *
Answer:
11 blocks
Explanation:
distance is adding up the numbers while displacement is the difference in starting and ending points
Choose the word that BEST completes the following sentence. Saturn’s rings have been assigned a letter, based on their location. The rings A and B are separated by: Titan The Cassini Division Stars An open space fairly equivalent to the Grand Canyon
Answer:
The correct answer would be Saturn's Cassini Division.
Explanation:
Read about it here.
https://caps.gsfc.nasa.gov/simpson/kingswood/rings/
Hope this helps! :)
What acceleration will a force of 20 newtons cause if applied to a go-kart with a mass of 20 kilograms?
ОА.
2 meters per second per second
OB
20 meters per second per second
O C.
1 meter per second per second
OD
10 meters per second per second
Answer:
1m/s is the acceleration used. C
Explanation:
please mark brainliest
what two factors directly affect the acceleration of an object?
The acceleration of an object depends on the mass of the object and the amount of the force applied to it. It states that the acceleration of an object increases with increased force and decreases with increased mass.
What is sin(77°)? plz help
Answer:
Value of Sin(77 degree) = 0.97437006
Degree / Radian Function
(angle in degree) (angle in radian) Sin Cos Tan Cot Sec Cosec SinH CosH TanH CosecH SecH CotH Arc Sin Arc Cos Arc Tan Arc Cosec Arc Sec Arc Cot
I’m giving 15 points for this one multiple choice question! Pls Help! It’s not A.
An electric food processor uses 250 joules of electrical energy every second. Due to friction and other causes, the energy available to spin the blades to cut food is reduced to 200 joules per second. The efficiency of the food processor is
A. 0.8%
B. 8%
C. 80%
D. 800%
Help plz for 25 points !! I only have an hour left !
Think of what simple machines you would use to do the following job. Tell how you would do it. Please answer in complete sentences. You want to build a jump for your bike. Your dad said you can use the pile of dirt out behind the garage for it.
Answer:
I can use a log and arock or something hard to make a pivot and place on it the log to build a jump
how to do this please
Answer:
1) see the diagram below
2) (b) the length of the wire being tested
Explanation:
1) An ammeter is connected in series with the circuit branch in which you want to measure current. "Conventional current" enters the positive terminal of the ammeter. (You can think of it as a voltmeter across a small resistor. The polarity of the voltage matches the polarity of the current.)
A voltmeter is connected in parallel with the circuit element of interest. Here, you want to measure the voltage across the wire, so the voltmeter is placed in parallel with the wire. The positive terminal of the voltmeter is connected to the end of the circuit element that has the higher (more positive) potential.
__
2) The wording of the problem tells you which variable is independent:
"A varies with B" means the independent variable is B
Here, the independent variable is the length of the wire.
When the number of gas particles at a constant pressure decreases how will the volume of the gas change?
Question 6 (4 points)
An automobile is moving with a velocity of 25 m/ and weighs 15680 N. After braking for 6 seconds the velocity of the car is reduced to 14 m/s,
(Hint: Mind the signst)
a. What is the car's mass?
kg
b. What is the car's initial momentum?
kg m/s
What is the change in momentum of the car
kg m/s
d. What is the average braking force on the car?
N
Blank 1:
Blank 2
Blank 3:
Blank 4
Time left for this
assement
50:56