Answer:
thats is a long time
Explanation:
maybe 1 hour
Answer:
833.3 seconds
Explanation:
(t) 6 m/s = 5000/ t
6t/6 = 5000/6
t = 833.3 sec.
In 2-4 sentences, summarize what you know about EM waves.
PLEASE HURRY! I'M TIMED! WILL GIVE BRAINLIEST!
Answer:
In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays.
will give brainliest plz help!!!!!!!
If an element has an atomic number of 25, then the atom will have
Question 1 options:
A. 25 protons
25 neutrons
B. 50 electrons
C.50 protons
Question 2 (1 point)
If you subtract the atomic number from the atomic mass number, you can find:
A. the number of neutrons
B. the number of protons
C. the number of electrons
D. the number of isotopes of that element
Question 3 (1 point)
Isotopes of an element differ in the number of
A. neutrons
electrons
B. nucleus
C. protons
Answer:
i have the list...
Explanation:
Question: 1 atomic number 25 would have twenty-five protons and twenty-five electrons.
Question 2: atomic mass - atomic number = number of protons + number of neutrons - number of protons we get the number of neutrons present in an atom when we subtract the atomic number from the atomic mass.
Question 3: Different isotopes of an element have the same number of protons in the nucleus
The independent variable in Part I, the one that is intentionally manipulated, is the
.
The independent variable in Part II, the one that is intentionally manipulated, is the
.
The independent variable in Part III, the one that is intentionally manipulated, is the
.
The independent variable in Part IV, the one that is intentionally manipulated, is the
.
Answer:
the 3rd won
Explanation:
cuz I I this 1question yesterday
Answer: gotcha
Explanation:
i got it
What happens at the dew point?
Answer: Clouds are formed
What causes rain?
Answer: dust particles can no longer support water droplets
The return of water vapor to the liquid form is called:
Answer: condensation
Water vapor is produced by the process of:
Answer: evaporation
What happens to air when it is heated by the sun?
Answer: It rises
Answer:
b.
Explanation:
because when water vapor is evaporated it turns into clouds and when the cloud has to much it will start to leak and we call that rain.
Answer:
no the clouds cant hold the water anymore for q2
Explanation:
Officials are looking into three different ski accidents. The accidents happened when three skiers (all with the same mass) were skiing across the flat, snowy ground. They were each bumped by another skier, but not all from the same direction. These skiers changed speed as a result of being bumped. Use the information in the diagram to answer.
Which skier(s) experienced the strongest force when bumped? How do you know?
a
The skiers in the yellow and purple sweaters; both gained the same force as they sped up, but the skier in the red sweater lost force and slowed down.
b
The skier in the yellow sweater experienced the strongest force because he has the fastest ending speed.
c
All three skiers experienced the same strong force because they changed speed by the same amount.
d
The skier in the red sweater because it takes a stronger force to slow something down than to speed it up.
When the skiers were bumped by other skiers, all three skiers experienced the same strong force because their speed changed by the same amount. Therefore, option (C) is correct.
How can the motion of an already moving object change?The motion of an object is the change in position of a body with respect to its surrounding within a given interval of time. If the position changes with time, an object is said to be in motion, with reference to a fixed frame.
The change in motion of an object is equivalent to a change in velocity. A change in velocity can be applied so that there will be acceleration. The force causes a change in the motion of an object and it produces acceleration too.
The change in the speed of the red skier after the bumped = 10 -4 = 6m/s
The change in the speed of the yellow skier after the bump:
[tex]= 6- 12 = - 6m/s[/tex]
The change in the speed of the purple skier after the bump:
[tex]= 0-6 = - 6m/s[/tex]
As the magnitude of change in the speed of all three skiers is the same so they experience the same force.
Learn more about the motion of an object, here:
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What is going on in this situation?
The photo shows a system that consists of a person on a diving board. What change could you make to the system that would decrease its total energy?
A. Replace the diver with someone who has more mass.
B. Decrease the height of the diving board.
C. Increase the length of the diving board.
D. Increase the height of the diving board.
*If you do not know the answer, then DON'T respond. I will report you. Also, explanations are appreciated but if not then that's fine.
Answer:
B
Explanation:
If you decrease the height of the diving board, you will create less energy because you will build up less acceleration jumping from a lower height. Hope this helps ya!
HELP FAST CORRECT ANSWERS ONLY 20PTS
Select the correct answer.
Which absolute magnitude rating would be the dullest?
A. -6
B. 0
C. +2
D. -1
Answer:
-6 I got you my guy hghdhccjxhH
Answer:
+2
Explanation:
This would be the correct answer. Hope this helps!
The lithosphere contains rocks, soils, and minerals.
Answer: TRUE
Explanation:
Hope this helped :))
i put an imagine down below that my teacher gave me, im learning the same thing lol
can someone help me rq?
Please help!!!! If something is shot straight up in the air at a speed of 70 m/s, how much time before it will hit the ground? (when I calculated it I got 14 is it right?) My following question is if the object from number 2 is shot up (70m/s) in the air how high will it get?
Answer:
poiiinnnts
Explanation:
Practice Activity:
.
In this experiment, the team will need to set up three different cups and label them as A,
B, and C. All three cups will get the same amount of water added to them. In order to
see how kinetic energy is transferred, the team needs to measure the initial
temperatures of each cup and record that in the data table, and then add different
amounts of ice to cups B and C. The mass of each amount of ice will be recorded in the
data table. After each ice cube melts, the team will record the temperature of the water
in each cup.
o The change in temperature will tell the team how much kinetic energy was
transferred from the water to the ice.
Think about how one can work effectively in a team to set the experiment up.
gather data, and analyze the data.
o
Mass Ice Added
Initial
Temperature
Final
Temperature
Cup A (Control)
Cup B
Cup С
Answer:
What are we are trying to answer?
Explanation:
Answer:
where is the question so that i can do my best ???
Explanation:
Arturo dreams about travelling to faraway stars someday. He read that the closest star to Earth is Proxima Centauri, which is 4.25 light years away. He also read that the Law of Special Relativity says that the mass of an object increases as its speed increases. It approaches infinity as it approaches the speed of light. How does this most likely affect the goals of the United States space program?
Answer:
It will keep the goals from being comeplet when they wanted it to.
Explanation:
A mass of 80 g of KNO3 is dissolved in 100 g of water at 50 ºC. The solution is heated to 70ºC. How many more grams of potassium nitrate must be added to make the solution saturated? Explain your reasoning
50 g more potassium nitrate must be added to make the solution saturated at 70 °C.
Solubility:
It is the degree of dissolved substance at room temperature or 25 °C per [tex]\bold {g/100\ cm^3}[/tex].
Saturation:
If no more solute or solid substance is dissolved in the solution, then the solution is called saturated.
Saturation increase with the increase in temperature because the kinetic energy of the particles is increased.
Therefore, 50 g more potassium nitrate must be added to make the solution saturated at 70 °C.
To know more about Solubility:
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Four students are carrying out different laboratory procedures.
Piroja is mixing baking soda and vinegar to see if it reacts.
Jason is heating salt water over a burner until the water evaporates.
Kali is putting crushed ice and ice cubes on a table to see which melts first.
Francisco is separating iron filings from sand using a magnet.
Which experiment relies on convection?
Piroja’s experiment
Jason’s experiment
Kali’s experiment
Francisco’s experiment
Jason’s experiment of heating salt water over a burner until the water evaporates relies on convection.
What is convection?Convection is single- or multiphase fluid flow that develops on its own as a result of the interaction between a fluid's body forces—most frequently gravity and density—and material property heterogeneity.
Convection caused by the effects of thermal expansion and buoyancy might be assumed when the cause of the convection is unknown. Convection may also occur in mixes or soft materials where particles can move.
Convective flow can be either transitory (as when an oil and water multiphase combination separates) or steady state. Convection may result from electromagnetic, gravitational, or fictitious body forces. The composition of the Earth's atmosphere, seas, and mantle is influenced by heat transfer through natural convection.
Hence, heating salt water over a burner until the water evaporates relies on convection.
Learn more about convection here:
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Drag the tiles to the correct boxes to complete the pairs.
Match the following phases of stellar evolution to its characteristic.
What is going on in this situation?
Answer:
The person in the black jacket slipped and fell
Which of these subatomic particles is found in the nucleus of an atom?
a. the protons and electrons
b. the neutrons and electrons
c. the protons
d. protons and neutrons
If I had a boat, and it had a higher density than water, would it matter only the density thats keeping the boat up or the shape too?
Answer: it will sink
Explanation:
Read the passage.
Gerald lives in a town that has experienced a population boom in recent years. Until last year, all of the town’s major decisions and policies were made at town meetings. All of the town’s residents were invited to these meetings, and every resident was allowed to debate and vote on the decisions that were made. Last year, due to the town’s expanding population, the townspeople voted to end the town meetings and to instead elect town council members who would be responsible for hearing citizens’ concerns and attending regular council meetings. Major decisions and policies for the town are now made only by these elected council members at town council meetings.
THE QUESTION- Which type of government was in place in Gerald’s town before the town council was established?
Answers:
#1 a dictatorship
#2 a direct democracy
#3 an absolute monarchy
#4 a representative democracy
Answer:
it is out of 1 and 2
Explanation:
what are two factors that cause changes in the motion of surface currents like the Gulf Stream?
Answer:
These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity (haline).
Explanation:
In this circuit, which bulb, when burned out, will cause all other bulbs to stop glowing?
A. A
B. B
C. C
D. F
Answer:
I think it's B
Explanation:
sorry if I got it wrong TvT
Answer:
a
Explanation:
Look at the graph pic and answer the question correctly!
Answer:
B)
Explanation:
That the time period of which they stop.
Take Look at the picture and answer the question correctly.
Answer: Dude u seriously don't see the pic?
Explanation:
