Answer:
i think it is 0.06 but im not sure sorry if im wrong
Explanation:
You skip north for 12 minutes to your best friend's house that is 1.5 kilometers away. What is your average velocity?
Answer:
The average velocity is 7.5 km/h
Explanation:
Were Gonna convert minutes to hours
12 minutes = 12/60 hours = 0.2 hours
Now we estimate the average velocity of the distance traveled over this time
1.5 / 0.2 km/h = 7.5 km/h
Calculate the speed of a dolphin that is observed swimming 75 meters in 5.0 seconds.
Answer:
15 meters/second
Explanation:
Sally pulls a sledge
I need help with thissss
Explanation:
back ground radiation is a natural radiation so basically everything emits background radiation. so if it were harmful, the world wouldn't be here,
so it is false
it knocks electrons out of atoms, this is because ionising radiation is a radiation that had enough energy to remove electrons form the atoms and molecules.
true because exposure to radon can damage biological molecules such as proteins, which leads to abnormal patterns of cell division, which leads to cancer.
hope it is helpful, if not , you can report and let someone else try it out.
do vote, thank you
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Online Content: Site 1 Online Content: Site 2 How is coal formed and why is it considered a nonrenewable resource? (Site 1)
Answer:
Coal is fossil fuel extracted from earth and since it takes a long time to replenish, it is called a non renewable source of energy
Explanation:
Coal is formed from the fossil fuel that lie deep beneath the earth crust . These fossil fuels are dead remains of living organism that burried beneath the earth crust million of years ago.
Coal is non renewable because if once it gets depleted it will take a very very long time to replenish.
Answer: Coal is fossil fuel extracted from earth and since it takes a long time to replenish, it is called a non renewable source of energy
Explanation: just did it
A car is traveling in a race.The car went from the initial velocity of 35 to the final velocity of 65 in 5 seconds what is the acceleration
Answer:
Acceleration = 6m/s²
Explanation:
Given the following data;
Initial velocity = 35m/s
Final velocity = 65m/s
Time = 5 seconds
To find the acceleration;
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Mathematically, acceleration is given by the equation;
[tex]Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}[/tex]
Where,
a is acceleration measured in [tex]ms^{-2}[/tex]v and u is final and initial velocity respectively, measured in [tex]ms^{-1}[/tex]t is time measured in seconds.Substituting into the equation, we have
[tex]a = \frac{65 - 35}{5}[/tex]
[tex]a = \frac{30}{5}[/tex]
Acceleration = 6m/s²
Atomic energy is produced from changes within the_____ of an atom.
electrons
neutrons
protons
or
necleus
Answer:
Atomic energy is produced from changes within the nucleus of an atom.
Answer:
nucleus
Explanation:
How is sleet different from hail?
Answer:
Hail occurs in warm weather, while sleet occurs during cold weather. When the temperature falls below 32 degrees, precipitation falls out of a cloud as snow. ... Unlike hail, sleet is tiny in size and falls only once from the sky.
Explanation:
Hopefully its right :)
John attached a ball to a spring
Answer:
C down
Explanation:
The ball is pulling the spring down so this must be the direction of the force
About how long does it take for the moon to go from new moon to full moon?
Answer:
1 month
Explanation:
It takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to full Moon).
what is the mass of an object if a 30 N force makes it accelerate at 6 m/s2
Answer:
5 kg
Explanation:
Acceleration = 6 m/s^2
Force = 30 N
Force = mass * acceleration
mass = force / acceleration
mass = 30 / 6
mass = 5 kg
A ball rolls 14.4 m in 12 12 sec. what is the speed
Answer:
1.2 mph
Explanation:
14.4 ÷ 12 = 1.2
What were the organic compounds Professor Wadhwa found and why are they important?
Answer:
Organic compounds are important because all living organisms contain carbon. They are the basic components of many of the cycles that drive the earth. For example, the carbon cycle that includes the exchange of carbon between plants and animals in photosynthesis and cellular respiration.
1. In the following circuit,which bulb lights first?
A) Bulb A
B) Bulb B
C) Bulb C
D) They all light at the same time
E) A and C light first, B lights after them.
Answer:
Bulb B is the answer
Increasing an object's height also results in an increase of the object's
Imagine you live next-door to your best friend. Your bedroom windows face each other, and you want to set up a way to communicate privately using waves. You have these supplies:
a long string
a spring toy long enough to stretch between your windows
metal cans
a Morse code alphabet decoder (Morse code is a system that represents letters of the alphabet with dots and dashes) imagine you live next-door to your best friend
Answer:
A morse code alphabet decoder maybe?? I am confused
Explanation:
Answer:
J3rk it in the window ;-)
Explanation:
Which explanation BEST supports Newtons second law of motion
Answer:
c
Explanation:
because newton's second law states that F= MA
which suggests that if M increases, F also increases which is the force,
let me give you a tip, during exam, just type any random numbers into the formula, like at first you type 5 into the M, then increase M, by putting 10 into the M , keep the acceleration the same for this, okay?
you will see that the force will increase,
by this I mean that option says largest mass, so the force will also be very big because in reality do you use more force on heavier box or a lighter one to push it across the room?
so larger mass, larger force, greater acceleration
but the question is not being clear, whether to the force remains constant for every object, if it does then A is false . and B is false because if the forces is constant, and it is light, it would require a small amount of force ,
but the other options, gave us a clue about the force so you can choose either c or d but see the explanation above,
the only corrext option will be c.
if not, please report this, someone will have a go at it
:) byeee
Urgent!
What is the mass of a baseball that has a kinetic energy of 4.8 J and is traveling at 8 m/s?
I think it's 0.6. ∞
Hopefully, it's correct... ∵-∵
The mass of the motorbike and rider is 286 kg. Calculate the acceleration of the motorbike at this moment in time.
Answer:
[tex]a=4.03\ m/s^2[/tex]
Explanation:
Given that,
The mass of the motorbike and rider is 286 kg.
We need to find the acceleration of the motorbike at this moment in time.
Net force acting on the bike is given by :
F = 2000 N - 845 N = 1155 N
Let a be the acceleration of the motorbike. So,
[tex]a=\dfrac{F}{m}\\\\a=\dfrac{1155}{286}\\\\a=4.03\ m/s^2[/tex]
So, the acceleration of the motorbike is [tex]4.03\ m/s^2[/tex].
What is the number used as the Gravitational Constant?
Answer:
G is called the constant of gravitation and is equal to 6.67 × 10−11 newton-metre2-kilogram−2.
Explanation:
Balanced equations account for the conservation of mass.
Please select the best answer from the choices provided
T
F
Answer:
fff
Explanation:
f
Answer:
True
Explanation:
A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow
The force of the pulley is 652 newtons. It accelerates at 53 m/s. How much does the object weigh. a 1230 grams b 1.230 gram c 123.0 grams d 12.30 Grams
Answer:
d. 12.30 grams
Explanation:
Given the following data;
Force = 652 N
Acceleration = 53 m/s²
To find how much the object weigh, we would need to determine its mass;
Force = mass * acceleration
652 = mass * 53
Mass = 652/53
Mass = 12.30 grams.
Therefore, the object weighs 12.30 grams.
Does an explicit formula for a sequence make sense assuming n = 2.5? Explain
Choose the correct answer below
O A. It makes sense, but only if the term for n = 2.5 is an integer
OB. It does not make sense since n is the term number. It is not possible to have a term between the second and third terms.
OC. It makes sense since n is a variable, and variables can be any real number
OD. It does not make sense since n can be negative or positive but must be an integer.
Answer:
c
Explanation:
tbh I think it is c because of what the explanation says so
Answer:
D
Explanation:
because i got it right when guessing its d
Para el siguiente conjunto de medidas, calcule EL ERROR RELATIVO PORCENTUAL: 1.34 m, 1.35 m, 1.37 m y 1.36 m
Answer:
Ver explicacion abajo
Explanation:
En este caso para poder calcular el error relativo porcentual, es necesario calcular primero el error absoluto, que se calcula de la siguiente forma:
Error absoluto = Resultado exacto - aproximación
Sin embargo, no tenemos el resultado exacto de las medidas, pero podriamos conocerlo tomando el promedio de estas medidas y este es el que tomaremos como el verdadero resultado de las medidas:
Promedio de medidas = 1.34 + 1.35 + 1.37 + 1.36 / 4
Promedio de medidas = 1.355 m
Ya que tenemos el promedio, podemos calcular el error absoluto de cada medida y luego el error relativo porcentual:
Ea1 = 1.355 - 1.34 = 0.015
Ea2 = 1.355 - 1.35 = 0.005
Ea3 = 1.37 - 1.355 = 0.015
Ea4 = 1.36 - 1.355 = 0.005
Ya que tenemos los 4 errores absolutos, es posible calcular el porcentual:
%error relativo = (Error absoluto / resultado exacto) * 100
Aplicando la expresión con cada uno de los valores tenemos:
%Er1 = (0.015/1.34) * 100 = 1.12%
%Er2 = (0.005/1.35) * 100 = 0.37%
%Er3 = (0.015/1.37) * 100 = 1.09%
%Er4 = (0.005/1.36) * 100 = 0.37%
Espero que te sirva.
you push a freezer with a force of 250 N. if you move it a distance of 15 m, how much work was done?
Answer:
375J
Explanation:
W=F x d
=250 x 15
=375J
The work W is equal to the force f times the distance d, or W = fd, to mathematically describe this idea. If the force is applied at an angle to the displacement, the work is W = fd cos.
What force is related to work done?Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, For a constant force that is oriented in the same direction as the motion, it is easiest expressed as the product of the force's magnitude and the distance travelled.
A desk is being subjected to applied force if someone is pushing it across the room. The person's force applied to the desk is known as the applied force.
Mass and weight are not the same.The normal force is the supporting force exerted on an object when it collides with another stable object.
Therefore, W=F × d =250 × 15 =375J
Learn more about work done here:
https://brainly.com/question/13662169
#SPJ2
If you took the same amount (the exact same volume), of a piece of crust and compared it to a piece of the core, which one would be heavier for its size? Why?
Answer:
The answer is below
Explanation:
Density is the amount of matter contained in a certain space. Objects that are dense are very heavy compared to their size while objects that are not dense are very light compared their size. Therefore most dense objects sink when placed in water while less dense objects floats in water.
Density is the ratio of mass to volume. It is given by:
Density = mass / volume
Crust has a density of 2.2 - 2.9 g/cm³ while core has a density of 9.9 - 12.2 g/cm³ for its outer and 12.8 - 13.1 g/cm³ for its inner.
Therefore if the same amount of a piece of crust is compared to a piece of core, the core would be more heavier since it has more density than the crust.
list sources of noise pollution in your surroundings
-Sounds of Vehicles
-Speakers or TV's at High Volume
-Kitchen Appliances
-Electronic Appliances
-Barking of dogs
Answer:
there are many
Explanation:
includeing planes
loud music
cars
traffic noise
which best explains why offspring created through sexual reproduction have greater variation than those created through asexual reproduction
Answer:
its fun
Explanation:
I like fun OWo
A coil of wire can become a temporary magnet if connected to a battery
O True
O False
Answer:
true
Explanation:
An Electromagnet is called as a temporary magnet, because electromagnet is made up of insulated copper wire wrapped around soft iron, which allows current to flow in it and at that moment iron gains it magnetic properties and when the current is switched off, then there will be no flow of current and hence iron loses its magnetic properties.
Hence it works temporarily as long as electric current flows in a conductor and hence known as temporary magnet. .
ii) One of the containers is wide and shallow. The other container is narrow and deep
Predict which container has the greater rate of cooling. Explain your answer.