Answer:
Net external force is the sum of all of the forcing acting on an object. Just because there are forces acting on an object doesn't necessarily mean that there is a net external force; forces that are equal in magnitude but acting in opposite directions can cancel one another out.
Explanation:
Answer:
Kk so your answers are: 1 is The sum of all the forces acting on an object is the net force or resultant force. If all the forces cancel out, the resultant force is zero, else, the unbalanced force will cause acceleration of the object. Force is a vector and hence has both a direction and magnitude. 2 is Depending on the magnitude and direction of the force, it can cause an object to move, stop or change direction. For example, in baseball a pitcher throws the ball with a certain speed towards the hitter, who hits it, thus applying a force to it. and 3 is friction.
Explanation:
Make sure to mark as brainliest, and a tip: Try to reword these so its not copy and pasting from the internet!
Find the KE of a ball of mass 500 g moving with a velocity of 4 m/s . Plz fast i have just 5 mins
Answer:
4000 J
Explanation:
KE = (1/2)(m)(v^2)
KE = .5*500*(4^2)
KE = 4000 J
If you went up in an elevator to the top of a 50m building then came back down, determine these quantities:
Distance at the top:
Displacement at the top:
Distance when down:
Displacement when down:
If you walked into the building with your cup of coffee at 8:00 in the morning, took a ride up and down on the elevator for fun, and then went home, then ...
When you got to the top:
... Your distance covered = 50 meters
... Your displacement since you started = 50 meters up
When you returned to the bottom:
... Your total distance covered = 100 meters
... Your displacement since you started = zero
Answer:
If you walked into the building with your cup of coffee at 8:00 in the morning, took a ride up and down on the elevator for fun, and then went home, then ...
When you got to the top:
... Your distance covered = 50 meters
... Your displacement since you started = 50 meters up
When you returned to the bottom:
... Your total distance covered = 100 meters
... Your displacement since you started = zero
Explanation:
lighting is blank A.a build-up of neutrons B.harmless if you don't hear thunder C.a large discharge of static electricity D.a low-voltage current
Answer:
C
Explanation:
lightning is an electrostatic discharge
Can anyone help me understand Circular Economy? for science
Solve for the indicated variable
mass (m):
200 N = m (3.5 %)
Answer:
5714.29
Explanation:
The given expression is:
200 = m(3.5% )
To solve this problem, we use the concept of multiplicative inverse;
The multiplicative inverse involves using the reciprocal of 3.5% to multiply both side of the expression;
200 = m x [tex]\frac{3.5}{100}[/tex]
m = [tex]\frac{100}{3.5}[/tex] x 200 = 5714.29
A fruit smoothie requires 14 blueberries for every 5 strawberries. How many blueberries would be needed if you were using 15 strawberries?
Answer:42
Explanation:
15/5= 3
3x14= 42
Answer:
42 blueberries 5x3=15 14x3=42
Explanation:
An electromagnet is a solenoid with a piece of ferromagnetic material within it.
Please select the best answer from the choices provided
OT
O F
Which of the following examples would be a physical change? (2 points)
a. Baking a cake
b. Boiling water
c. Burning wood
d. Lighting fireworks
What factor affects weight( what force causes weight to change)
Answer:
Gravitational force affects weight, weight changes with change in gravity
Hope it helped u,
mark as the brainliest
^_^
(the answer is not 0.482)
Please help me!
Neutral atoms of oxygen with a mass of 15 are frequently used in brain imaging technology. Could the atom symbol below be used in this process? Why or why not?
Answer: No, because the atomic number shown in the symbol (Z = 15) is not the atomic number of oxygen (Z = 8)
Explanation:
When we have an atom, the number in the top left is the mass number A, is equal to the sum between the number of neutrons and protons in the atom.
In this case, between protons and neutrons, we have 32.
The number at the bottom left is the atomic number Z, which is equal to the number of protons in the atom.
Particularly, this number is different for every element. For example, for the oxygen we would have Z = 8, this means that the oxygen has 8 protons.
In the image, we can see Z = 15, then the atom has 15 protons, this means that it can not be oxygen (Z = 15 is for phosphorus, then this atom would be phosphorrs). Then the symbol can not be used, because that is not oxygen.
3. A car does an emergency stop from 144 km\h in 4s
What was its deceleration?
Answer:
36?
Explanation:
For questions A, B, C, and D. Determine if the Kinetic Energy will increase, decrease or stay the same based on the directions of their force and velocity vectors.
Explanation:
KE = 1/2*m*v^2
mass won't change
but velocity is
A: the force is pushing against the direction of the object, so velocity is decreasing, so KE is decreasing
B: the F net line is pretty much straight up, which means there is no net force pushing to the left, but velocity is still increasing
Why? Because if you use the pythagorean theorem, the hypotenuse is always longer than the legs.
Note: velocity only ever stays the same if there is no net force (or 0 acceleration), so all four of these are either decreasing or increasing
C: there is a net force to the right, so velocity is increasing
D: There is a net force to the right but velocity is to the left, so velocity is decreasing
Hope I got these right
Which type of wave interaction is shown in the diagram?
The answer is Constructive interference
Answer:
The answer is Constructive interference
Explanation:
cause you said so
Answer: The answer is Constructive interference
Explanation:
You said the answer.
True or false Carbon in the form of carbon dioxide is needed for both processes of photosynthesis and cellular respiration True False
Yes carbon dioxide is needed for photosynthesis while cellular respiration needs oxygen and dispurses carbon dioxide
f the same amount of force is applied to objects of different mass, (0.5, 1, 2, 5, 10, 20 kg.) will the objects all move at the same or different speeds?
Answer:
An object's velocity will only remain constant in the absence of any forces or if the forces ... The pendulum doesn't move because all the forces cancel each other out (add ... Note that an object that has a mass of one kilogram on earth would have a ... frames of animation
Explanation:
Females are the only gender capable of suffering from an eating disorder.
A. true
B. false
When a rubber band is pulled back all the way it has what type of energy?
Answer:
Potential energy
Explanation:
Determine the gradient of a slope that starts at an elevation of 85 meters and ends 15 km away at an elevation of 10 m.
Answer:
Explanation:
To calculate the gradient we can use the equation for it, which is:
change in field value / distance = gradient
Since we already know the values, we can directly go with the calculation. The change in field value is 55 m - 15 m = 40 m, and we will need to convert the 20 km into meters, so we will have 20,000 m.
40 / 20,000 = 0.002
So the gradient of the suggest slope will be only symbolic 0.002 degrees.
do we live in a simulation?
Answer:
well no, but yes
Explanation:
depends on your religion tbh
Answer:
There is a 50-50 chance that we do live in a simulation.
Explanation:
HELPPPPP!!!!! ME PLSSSS I don't know the answer!!!****URGENT****
Answer:
D is the Answer
Explanation:
I know D is the answer because I calculated it and got answer choice D
What is the doppler effect in astronomy used for?
Answer:
The Doppler effect for electromagnetic waves such as light is of great use in astronomy and results in either a so-called redshift or blueshift. It has been used to measure the speed at which stars and galaxies are approaching or receding from us; that is, their radial velocities.
Answer:
the doppler effect for electromagnetic waves such as light is of great use in astronomy anf results in either redshift and blueshift. It has been used used to measure the speed at which stars and galaxies are approaching or receding from us; that is, their radial velocities
what did the hand say to the face?
Answer:
im not sure what did it say
Explanation:
hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
TRUE OR FALSE?
When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.
Answer:
That would be true.
Explanation:
sorry if im wrong just trying to be somewhat helpful.
what is the answer to this
Hello help me please! (*8* Points!) How can the potential energy of a bicycle stopped at the top of a hill be changed into kinetic energy?
Answer:
If the bicycle went down the hill, because if you are at the top of the hill, that is potential energy, when you start going down, it is turned into kinetic energy. Makes sense?
Explanation:
Look at photo D. Explain how the fountains help to keep the gardens cool.
Answer with Explanation:
Spain is known to have hot summers, thus, it is very easy for water to evaporate once exposed to direct heat source (such as the sun).
A fountain is being used in order to keep the garden's surrounding air temperature low by allowing the evaporation of water. One factor that speeds up the evaporation of water is the surface area. The water coming out of a fountain is in small quantities; however, it meets up with hot air in a large surface area. This allows faster evaporation, leading to an even greater cooling effect because heat is being transported immediately from the liquid state to the gaseous state. This is the reason why people often meet up in places where there's a fountain. It is not only aesthetically appealing but also provides comfort from the heat.
Please help me I will give you 20 points !!
You read a primary source and a secondary source that discuss the same
experiment. There is a difference in the conclusions made by these two
sources. Which should you trust more, and why?
O A. The secondary source, because it was printed on paper
B. The secondary source, because it is easier to understand
O C. The primary source, because it contains more charts
O D. The primary source, because it was written by the researcher
Answer:
D. The primary source, because it was written by the researcher
Explanation:
One should learn to trust the primary source more because it is the real work of the researcher.
A primary work defines the work of research from his or her experimental findings.
The primary source presents experimental data and other subordinates ones to reach a conclusion as seen from the view of the researcher. A secondary source implies someone else documenting their own opinion about the primary experimental set up. This can get dicey in the sense that results can be twisted to serve other ulterior motives.Why will air sink if it is colder than the air around it?
Answer:
The molecules in hot air are moving faster than the molecules in cold air.
Please help ASAP 35 points and brainly if u get it right please
Answer:
first one down second one up
Explanation: