Answer:
0.19 kg
8 N
1.964 N
58.86 N
15 kg
Explanation:
w = Weight of an object = 100 N
g = Acceleration due to gravity of Earth = [tex]9.81\ \text{m/s}^2[/tex]
m = Mass of an object
Weight is given by
[tex]w=mg\\\Rightarrow m=\dfrac{w}{g}\\\Rightarrow m=\dfrac{100}{9.81}\\\Rightarrow m=10.19\ \text{kg}[/tex]
Mass of the object is 0.19 kg
g = [tex]2\ \text{m/s}^2[/tex]
m = 4 kg
[tex]w=mg\\\Rightarrow w=4\times 2\\\Rightarrow w=8\ \text{N}[/tex]
Weight of the object is 8 N.
m = 200 g
[tex]w=mg\\\Rightarrow w=0.2\times 9.81\\\Rightarrow w=1.964\ \text{N}[/tex]
Weight of the object is 1.964 N.
Weight is the force the Earth exerts on an object which is on the surface of the Earth.
m = 6kg
[tex]w=mg\\\Rightarrow w=6\times 9.81\\\Rightarrow w=58.86\ \text{N}[/tex]
The force of the object is 58.86 N.
w = 150 N
a = g = [tex]10\ \text{m/s}^2[/tex]
[tex]m=\dfrac{w}{g}\\\Rightarrow m=\dfrac{150}{10}\\\Rightarrow m=15\ \text{kg}[/tex]
Mass of the object is 15 kg.
What did the Fish and Wildlife Service (FWS) do to bring back black-footed ferrets from extinction?
The FWS moved mating pairs from the Wyoming population to over 8 western states and Mexico to begin new colonies.
The captive breeding program was implemented too late to save the black-footed ferret.
The FWS monitored a Wyoming population and captured enough individuals to start new populations.
The FWS use a captive breeding program to start populations in 8 states.
Answer:
The FWS use a captive breeding program to start populations in 8 states
Explanation:
I just took a quiz and got this answer right.
Answer:
The FWS use a captive breeding program to start populations in 8 states
Explanation:
what are some of the Differces between normal cells and cancer cells?
Answer:
Normal cells are either repaired or die (undergo apoptosis) when they are damaged or get old. Cancer cells are either not repaired or do not undergo apoptosis.
Explanation:
Imagine that you meet with the team of scientists who assembled the graphs in part B. What questions would you ask the team about the data presented?
Answer:
They made this graphics, how they measured the gas and how this affected the climate change horribly.
They created these images to show how the gas was measured and how the climate change was adversely affected the greenhouse gases.
What is greenhouse gases?A greenhouse gas is a gas that produces the greenhouse effect by both absorbing and emitting radiant energy at thermal infrared wavelengths. The five main greenhouse gases in the atmosphere of Earth are ozone, carbon dioxide, methane, and water vapor.
The gases that trap heat in the earth's atmosphere are referred to as greenhouse gases. The earth's surface warms during the day when the light beams through the atmosphere.
The earth's surface cools at night, redistributing heat into the atmosphere. However, part of the heat is captured by the atmosphere's greenhouse gases.
Therefore, how the climate change was adversely impacted the greenhouse gases must ask the team.
Learn more about greenhouse gases, here:
https://brainly.com/question/13093450
#SPJ2
answer asap
Food caught on fire on a restaurant's stove. How much thermal energy was present?
A. only a little compared to the total amount of energy
B. a lot of the energy was thermal
C. none of the energy was thermal
D. it was mostly potential energy, not thermal
Copper (II) Oxide (CuO) has atoms that form which type of bond?
Answer:
Copper(II) oxide is a metal oxide that has the formula CuO. It has an ionic structure. It contains a copper(2+). Cupric oxide, or copper (II) oxide, is an inorganic compound with the chemical formula CuO.
Explanation:
I hope that helps you.
How will nuclear fusion change as the sun ages?
Answer:
It won't be good.
Explanation:
In the core of the sun, hydrogen is produced by nuclear fusion. when the sun ages, it starts to run out of the hydrogen. when it runs out, nuclear fusion can't generate heat, and then the sun expands, becoming a red giant.
1.
At constant pressure. 50 milliliters (mL) of a gas
at 20°C is heated to 30° C. The new volume of
the gas in milliliters (ml) is equal
Answer:
[tex]\boxed {\boxed {\sf V_2=75 \ mL}}[/tex]
Explanation:
Since the pressure is constant, the only variables we need to work with are temperature and volume. We will use Charles's Law, which states the volume of a gas is directly proportional to the temperature. The formula is:
[tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex]
Originally, the gas was 50 milliliters at 20 degrees celsius. Substitute these values into the left side of the equation.
[tex]\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{T_2}[/tex]
We don't know the volume of the new gas, but we know the temperature was changed to 30 degrees celsius.
[tex]\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{30 \textdegree C}[/tex]
Since we are solving for the new volume, we must isolate the variable. It is being divided by 30 °Cand the inverse of division is muliplication. Multiply both sides by 30 °C.
[tex]30 \textdegree C*\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{30 \textdegree C}* 30 \textdegree C[/tex]
[tex]30 \textdegree C*\frac{50 \ mL}{20 \textdegree C}= V_2[/tex]
The units of degrees celsius cancel, so we are left with milliliters as the units.
[tex]30*\frac{50 \ mL}{20}= V_2[/tex]
[tex]\frac{1500 \ mL}{20}= V_2[/tex]
[tex]75 \ mL=V_2[/tex]
The new volume of the gas is 75 milliliters.
A student has 475 mL of a 4.5 M HNO3 solution. He leaves the top of the container Monday morning the volume of solution is now 347 mL. What is the conventtration of the solution now
Answer:
6.1 M
Explanation:
Step 1: Calculate the moles of HNO₃ in the initial solution
A student has 475 mL (0.475 L) of a 4.5 M HNO₃ (4.5 mol HNO₃/ L) solution.
0.475 L × 4.5 mol HNO₃/ L = 2.1 mol HNO₃
He leaves the top of the container open, so water will evaporate, but the moles of HNO₃ will remain the same.
Step 2: Calculate the final concentration of the solution
2.1 moles of HNO₃ are in 347 mL (0.347 L) of solution.
[HNO₃] = 2.1 mol / 0.347 L = 6.1 M
(NEED HELP ASAP) Which statement best describes a key difference between a solar and lunar eclipse?
A.
During a lunar eclipse, the moon passes through Earth’s shadow; during a solar eclipse, the moon's shadow moves across Earth.
B.
During a lunar eclipse, the moon’s shadow falls on Earth’s surface; during a solar eclipse, the moon passes through Earth’s shadow.
C.
Solar eclipses happen once every ten years while lunar eclipses occur with every new moon.
D.
Solar eclipses occur with every new moon while lunar eclipses happen every five to six years.
Answer:
a
Explanation:
Someone Please HELP Me
2C4H10(g) + 13O2(g) → 8CO2(g) + 10 H2O(g)
How many liters of O2 are required to produce 3.15g of carbon dioxide?
Which is a possible excited state configuration for Nitrogen?
A. 1-5-2
B. 2-5
C. 1-6
D. 2-5-1
Can someone please help with this 4 mark question!
Answer:
6.941 u
Explanation:
When Earth’s axis points away from the sun, the _________ Hemisphere has the longer days of summer.
Nort
Answer: northern hemisphere
Explanation: I looked it up. Plus I took a test with this question and when the teacher went over the answer i got it right.
At the Sprite bottling plant where the temperature is at 235K, each bottle can hold 3.80 atm of pressurized carbon dioxide gas (to make the soda fizzy). At room temperature 298K what is the new pressure?
Answer:
P2 = 4.76 atm
Explanation:
Given:
T1 = 235K. P1 = 3.80 atm
T2 = 298K. P2 = ?
Here, we use Gay-Lussac's law:
P1/T1 = P2/T2
Solving for P2, we get
P2 = (T2/T1)P1
= (298K/238K)(3.80 atm)
= 4.76 atm
help please this is a major grade (my birthday is next week) if i dont pass i wont celebrate my birthday please help!
Answer:
The answer to the question is C
an evacuated cylinder has a volume of 50 liters. if 20 liters of nitrogen fas and 20 liters of oxygen gas are pumped into this evacuated cylinder, how much of the cylinder is filled with the two gasses?
The nitrogen gas and the oxygen gas will both occupy 50 liters.
Volume of a gasLet us recall form the kinetic theory of gases that a gas is in constant random motion. The gas does not have a specific volume but takes on the volume of the container since it will expand and fill the container.
The volume occupied by the two gases will be the same as the volume of the container. Hence, the nitrogen gas and the oxygen gas will both occupy 50 liters.
Learn more about volume of a gas: https://brainly.com/question/4519953
Answer:
B. The entire container because gases will expand to fill it.
Explanation:
I took to test, plus it directly says this in the lesson
How does the difference in air pressure masses affect wind speed? When low air pressure and high air pressure masses are far apart, air moves quickly from low to high pressure areas. When low air pressure and high air pressure masses are far apart, air moves quickly from high to low pressure areas. When low air pressure and high air pressure masses are close together, air moves quickly from high pressure to low pressure areas. When low air pressure and high air pressure masses are close together, air moves quickly from low to high pressure areas; this creates stronger wind speeds.
Answer:
it is from the currents the movements cause
Explanation:
Answer:The greater the difference in pressure, the faster the winds. When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure. When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
Explanation:
Pls hurry
Light is the fastest known entity in our universe.
O True
O False
Mark this and return
Save and Exit
Answer:
True
Explanation:
Answer:
true
Explanation:
source(s): trust me bro
Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2.
So, if the mass of an object on Earth is 40 kilograms, its mass on the Moon is
kilograms and its weight on the Moon is
newtons.
Reset Next
Answer: Mass is 40 kg, weight is 64 N
Explanation: Mass is same everywhere, weight G = mg, it depends on acceleration of gravity
2
CuCl2 +4KI -> 2 Cul + 4 KCI + 12
Answer:
Explanation:
This is an example of a limiting reactant question, and is very common as a general chemistry problem.
We first see the balanced equation, that is:
2CuCl2+4KI→2CuI+4KCl+I2
We first need to find the limiting reactant
We see that 0.56 g of copper(II) chloride (CuCl2) reacts with 0.64 g of potassium iodide (KI) . So, let's convert those amounts into moles.
Copper(II) chloride has a molar mass of
134.45 g/mol . So in 0.56 g of copper(II) chloride, then there exist
0.56g134.45g/mol≈4.17⋅10−3 mol
Potassium iodide has a molar mass of
166 g/mol . So, in 0.64 g of potassium iodide, there exist
if it wrong i am sorry
what is the proper formulanGaseous Butane (C4H10) that reacts with Gaseous Oxygen (O2) in a combustion reaction to form Carbon dioxide Gas and Gaseous Water (Dihydrogen monoxide).
Answer:
2C₄H₁₀(g) + 13O₂(g) —> 8CO₂(g) + 10H₂O(g)
Explanation:
The balanced equation for the reaction between butane and oxygen to produce carbon dioxide and water can be written as follow:
C₄H₁₀ + O₂ —> CO₂ + H₂O
Next, we shall balanced the equation. This is illustrated below:
C₄H₁₀ + O₂ —> CO₂ + H₂O
There are 4 atoms of C on the left side and 1 atom on the right side. It can be balance by writing 4 before CO₂ as shown below:
C₄H₁₀ + O₂ —> 4CO₂ + H₂O
There are 10 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 5 before H₂O as shown below:
C₄H₁₀ + O₂ —> 4CO₂ + 5H₂O
There are 2 atoms of O on the left side and a total of 13 atoms on the right side. It can be balance by writing 13/2 before O₂ as shown below:
C₄H₁₀ + 13/2O₂ —> 4CO₂ + 5H₂O
Multiply through by 2 to express in whole number ratio.
2C₄H₁₀(g) + 13O₂(g) —> 8CO₂(g) + 10H₂O(g)
Thus, the equation is balanced.
What are the parts of the glowstick? What are the chemicals inside?
which element dissolves readily in water to form an alkaline solution?
pls help
Answer:
An alkaline solution can be formed when a metal oxide is dissolved in water. An acidic solution can be formed when a non-metal oxide is dissolved in water. For example, magnesium oxide dissolves to form alkaline solutions.
In which location would a free neutron from a decaying U-235 atom be most likely to cause another atom to split?
there you go. giving answers to most questions on the chem test (10th grade)
Answer:
The appropriate option would be B . Explanation: This is due to the reason enriched U has insignificant polluting influences. Along these lines, the U -235 particles focuses together and the possibilty of high energy neutron bombarding another Uranium -235 molecule in the region is high.
Explanation:
Answer:
thank u so much for the answers ! !! How do u get the answers???
Explanation:
[check out their questions for the answers guys chem final]
In a symbolic equation, chemical names are used for reactants and product. True or false
Answer
false
Explanation:
hope it helps.......
This is a false statement!
In the symbolic equation, chemical formulas are used instead of chemical names for reactants and products, while symbols are used to indicate the phase of each substance. It should be apparent that the chemical shorthand method is the quickest and clearest method for writing chemical equations.
A child receives a balloon filled with 47 L of helium from a vendor at an amusement park. The temperature outside is 320 K. What will the volume of the balloon be when the child brings it home to an air-conditioned house at 295 K? Assume that the pressure stays the same. Answer in units of L.
Answer:
43.3 L
Explanation:
Applying,
V/T = V'/T'................... Equation 1
Where V = Initial volume of the ball0on, T = Initial temperature of the balloon, V' = Final volume of the balloon, T' = Final Temperature of the balloon.
make V' the subject of the equation
V' = VT'/T................ Equation 2
From the question,
Given: V = 47 L, T = 320 K, T' = 295 K
Substitute these values into equation 2
V' = (47×295)/320
V' = 43.3 L
Which statement best explains what causes the phase change from solid ice to liquid water?
a.Heat is released as ice turns into liquid water.
b.The mass increases when ice turns into liquid water.
c.Heat is absorbed as ice turns into liquid water.
d.The hydrogen bonds prevent the absorption of heat.
8.) If 396 g of Carbon Dioxide (CO2) are produced, what mass of Oxygen
(02) reacted? *
Answer:
264g
Explanation:
C + O2 -> CO2
_g + _g -> 396g
396÷3=132
C (132g) + O2 (264g) -> CO2 (396g)
How much heat is released when 233 grams of water at room temperature (25C) is frozen into ice at -15C?
Answer: The amount of heat released when 233 grams of water at room temperature (25C) is frozen into ice at -15C is 17253.65 J.
Explanation:
As water converts into ice at [tex]0^{o}C[/tex]. So, the change in temperature is taking place from [tex]25^{o}C[/tex] to [tex]0^{o}C[/tex] and then from [tex]0^{o}C[/tex] to [tex]-15^{o}C[/tex].
So, amount of heat released by water is as follows.
[tex]q_{1} = m \times C \times (T_{2} - T_{1})\\= 233 g \times 4.18 J/g^{o}C \times (25 - 0)^{o}C\\= 24348.5 J[/tex]
m = mass of substance
C = specific heat of water = [tex]4.18 J/g^{o}C[/tex]
[tex]C'[/tex] = specific heat of ice = [tex]2.03 J/g^{o}C[/tex]
The amount of heat released by ice is as follows.
[tex]q_{2} = m \times C' \times (T'_{2} - T'_{1})\\= 233 g \times 2.03 J/g^{o}C \times (-15 - 0)^{o}C\\= -7094.85[/tex]
Now, total heat released during this change is as follows.
[tex]\Delta H = q_{1} + q_{2}\\= 24348.5 J + (-7094.85) J\\= 17253.65 J[/tex]
Thus, we can conclude that heat released when 233 grams of water at room temperature (25C) is frozen into ice at -15C is 17253.65 J.
Carbohydrates are found in ..... Question 5 options: water alcohols plastics starchy sugar-filled foods mutil choice
starchy sugar filled foods contain carbohydrates since carbohydrates are sugar chains