[tex]\begin{gathered}\begin{gathered} \\ \large{\pmb{\underline{\underline {\frak{AnSwer}}}}} \\ \end{gathered}\end{gathered} [/tex]
Thank u soo much...
In the game of football sometimes we while looking at the football and trying to kick it with a greater force, collides with a player of opposite team. both feel hurt because each applies a force to other . When a gun is fired it exerts a forward force on the bullet .
If the decay has a half-life of 10.2 years, what mass of 60.8g carbon-14 will remain after 20.4 years
Answer:
15.2 g.
Explanation:
After 10.2 years mass remaining = 60.8 * 1/2 = 30.4 g
After another 10.2 years it is 30.4 * 1/2 = 15.2 g.
What are the two parts of an atom ?
Answer:
The nucleus and the outer region.
Explanation:
What element is steel mainly composed of?
A. Iron
B. Carbon
C. Manganese
D. Silver
Need anwser pls. Hurry!!!!! Please hurry up.
Hurry.
why do you think you can find silver and gold on their own in rocks but calcium and magnesium are combined with other elements to make compounds such as calcium carbonate and magnesium sulfate?
Explanation:
Silver and Gold belong to a special group of metals known as the native metals. They are found naturally on their own and not in combined form in rocks.
These metals are found uncombined because they are unreactive. They prefer to alloy with themselves. Calcium and magnesium on the other hand are reactive metals. The unreactivity of these metals makes them uncombined in nature.ihsusbydnuhzkuhd nuziw
Explain why nervous signals are described as an "electrochemical process." What is electrical and what is
chemical? Make sure to use these terms (axon, synapse, neurotransmitter, action potential, Na/k pump, dendrite, axon
terminals).
Answer:
The nervous system operates using an electrochemical process. An electrical charge moves through the neuron itself, and chemicals are used to transmit information between neurons
Answer: The nervous system operates using an electrochemical process. An electrical charge moves through the neuron itself, and chemicals are used to transmit information between neurons
Explanation: i just took the test
planets close to a star will have __ orbital velocities than planets farther from a star.
Answer:
The closer a planet is to the Sun, the stronger the Sun's gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun's gravitational pull, and the slower it moves in its orbit.
Please help me!!!!
What is the density of a liquid if the volume is 25 mL and the mass is 20 g?
A. 1.25 g/mL
B. 0.8g/mL
C.500g/mL
D.1.25mL/g
Answer:
0.8g/ml
Explanation:
d=m/v
d=20/25
d=0.8
2)
The temperature 30. K expressed in degrees Celsius is
A)
243°C
B)
-243°C
C)
303°C
D)
-303°C
Answer:
B
Explanation:
From Celsius to Kelvin add 273
From Kelvin yo Celsius subtract 273
Hence 30 - 273 = -243
Determine the pressure of a 6.4L sample of oxygen gas at 300K and 100KPa, after the gas is compressed to 2.40L at 900K.
The pressure : 800 kPa
Further explanationBoyle's law and Gay Lussac's law
[tex]\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}[/tex]
P1 = initial gas pressure (N/m² or Pa)
V1 = initial gas volume (m³)
P2 = gas end pressure
V2 = the final volume of gas
T1 = initial gas temperature (K)
T2 = gas end temperature
The pressure after the gas is compressed :
[tex]\tt \dfrac{100\times 6.4}{300}=\dfrac{P_2\times 2.4}{900}\\\\P_2=800~KPa[/tex]
A 975 L balloon contains helium. On the ground the temperature is 30 0C and the pressure is 743 torr. What will be the balloon's volume at an altitude of 5700 m where the pressure is 375 mm Hg and the temperature is -35.0 0C?
Answer:
V₂ = 1518L
Explanation:
-Using combined gas law:
[tex]\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}[/tex]
Where P is pressure, V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.
Initial states:
P₁ = 743 torr
V₁ = 975L
T₁ = 30°C + 273.15K = 303.15K
P₂ = 375 mmHg = torr
V₂ = Our incognite
T₂ = -35°C + 273.15K = 238.15K
Replacing:
[tex]\frac{743torr*975L}{303.15K} =\frac{375torrV_2}{238.15K}[/tex]
V₂ = 1518LRound the number 31.257592 to 5 significant figures.
Explanation:
Highlight the first 5 digits. You should highlight 3, 1, 2, 5, and 7 in that order.
Note the next digit after that is a 5, meaning we'll round that 7 up to 8
So 31.257592 becomes 31.258 when we round to five significant figures.
A wave that travels at the speed of light and consists of a combined electric and magnetic effect
Answer:
Electromagnetic waves
Explanation:
The description given is that of an electromagnetic wave.
Electromagnetic waves are propagated by the vibration of electrical and magnetic fields in a perpendicular direction to one another.
These waves generally travel at the speed of light. They are made up of magnetic and electric fields. They do no require a material medium for their propagationThey can pass through a vacuum.Which temperature is the warmest?
290K
75 F
30 C
Answer:
What the heck is "K" but I beleive 75 is the answer, but maybe wait for sumone else to answer.
Explanation:
Answer:
30 C
Explanation:
Which of the following describes a species with the greatest fitness?
The species that can reproduce beter than the others
The species that is faster than the others
The species that is stronger than the others
The species that is larger than the others
Answer:
C is it!
Explanation:
a snail slowly moves along at 3 ft/hr. what type motion velocity ,distance, speed acceleration displacement Please answer need it now!!!!!
Answer:
motion - forward
velocity - 3ft/hr
distance - 3 ft/hr
speed - 3 ft/hr
acceleration - none
displacement - ?????
Explanation:
What is 210 kg - 38 kg rounded to the correct number of significant figures
Answer:
170kg
Explanation:
I WILL MARK BRAINLIEST!!!!! !!
(picture included with one question ^^^^^^^)
Answer:
type D
balance form .b
Explanation:
Si units are the modern form of _____
Answer:
Metric system !!hope this helpss
Write four properties for sub-atomic particles present in an atom
Answer:
Subatomic particles are particles that are smaller than the atom.
Protons, neutrons, and electrons are the three main subatomic particles found in an atom.
Protons have a positive (+) charge.
Neutrons have no electrical charge
Explanation:
When fossil fuels, such as gasoline, are burned, they create smoke. Smoke is best described as a heterogeneous mixture of solid particles from the burning fuel dispersed in a gas – usually air. Smoke can be described more specifically as a suspension. What will most likely happen over time to smoke in the atmosphere? The solid particles will spread out and dissolve. The particles will eventually come together in a cloud and produce rain. Over time, the solid particles will settle on whatever is outside. The particles will remain mixed in the air.
Answer:
Over time, the solid particles will settle on whatever is outside."
Explanation:
Answer:
C
Explanation:
which statement is a scientific law
Answer:
It is b
Explanation:
The sun causes water in the pond to evaporate
1.conduction
2.convection
3.radiation
Answer:
The answer is Radiation
Answer:
Convectional
Explanation:
It is the movement of heat through fluid
While radiation travels though a vacuum and conduction accrues between atoms / solids
give a brainliest if it desires it plzzzz
Write the general formula of an alkane and use this to predict the 97th member
of the alkane series.
Explanation:
The general formula of an alkane is given as;
CₙH₂ₙ₊₂
n is the number of the member;
For the 97th member in the series;
n = 97;
2n + 2 = 2(97) + 2 = 196
So, the 97th member is;
C₉₇H₁₉₆
This is how to apply the formula of alkanes which are saturated hydrocarbons to find any member of the series.
What does an atomic number represent in an atom? number of neutrons number of protons number of electrons number of protons and neutrons
Answer:
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Answer: I'm pretty sure the answer is Number of Protons
Explanation:
I took the k-12 test
Help me plz and need it bad
Answer:
Explanation: p + ci=pci
h+o=h io
A runner eats a snack with 375 Calories of nutritional energy. After her snack, she burns 3.16 x 10^6 joules while running
Answer:
The complete question is given below
A runner eats a snack with 375 Calories of nutritional energy. After her snack, she uses 3.16 X 106 joules while running [1 Calorie = 4184 joules).
Which of the following statements are true? Select all that apply.
A. There were 1.57 X 106 joules of energy in the snack.
B. There were 3.14 X 106 joules of energy in the snack.
C. During her run, she used 755 Calories of energy.
D. During her run, she used 189 Calories of energy.
E. The runner used more Calories while running than she consumed during her snack.
F The runner used fewer Calories while running than she consumed during her snack.
Answer: Options A, C and E are all correct options
Explanation:
From the question,
1 calorie = 4184 Joules
therefore 375 calories from the consumed snack
= (4184 x 375) J
= 1,569,000J
= 1.56 x 10⁶ J (option A is correct)
While running, she expends 3.16 x 10⁶ J. We can convert this to calories to see how much calories she expended while running
Recall 4184 Joules = 1 calorie
therefore, 3.16 x 10⁶ Joules is equivalent to
= (3.16 x10⁶/ 4184) calories
= 755.6 calories (option C is also correct)
If she consumes 375 calories from her snack but expended 755 calories during her running exercise, therefore the runner consumed fewer calories than what she expended during her exercise, hence option E is also correct
Answer: Options A, C and E are all correct options
Select The on that most applys
Will mark brainliest
Answer:
A and b
Explanation:
i dont understand please help:))
Answer:
equal to
Explanation:
the balloon is equal to it
Clinical thermomerter
Answer:
Here is the definition: A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature.