Answer:
A. Melting
B. Freezing
C. Condensing
D. Boiling
Explanation:
Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat? The mechanical advantage of the baseball bat is
Answer:
0.2
Explanation:
Mechanical Advantage is defined as the ratio of force output with respect to the force input. Thus,
MA = output / input
MA = 5 / 25
MA = 1/5
MA = 0.2
Since this value is less then one. Even though it's tagged a mechanical advantage, in reality it would be mechanical disadvantage.
Therefore, we can say that the mechanical advantage of the baseball bat is 0.2
Answer:
0.2
Explanation:
Hydrogen is a nonmetal with many nonmetal properties. Why is it on the periodic table with the metals in Group 1?
Answer:
This is because it has ns1 electron configuration like the alkali metals.
Pls Mark Brainiest, am trying to become Virtuoso
A 1 kg ball is rolling at 3 m/s.
Answer:
It will roll 9 meters in 3 seconds
Explanation:
3 m/s times 3 is 9
Thanks for warning me.
I'll be careful to stay out of its way.
Do you have a question to ask ?
explain nuclear fusion briefly
Answer:
Nuclear fusion is the process in which two atomic nuclei are fused together into a larger single nucleus, releasing energy in the process. ... In proton-proton fusion, four hydrogen atoms are fused into a single helium-4 atom, releasing a lot of energy in the process.
Explanation:
What are the pros and cons of nuclear fission
Answer:
Low Greenhouse Gas Emissions. ...
High Power Output. ...
Inexpensive Electricity. ...
Nuclear Energy Doesn't Rely on Fossil Fuels. ...
Economic Impact. ...
Back-end Environmental Impact. ...
Past History of Nuclear Accidents. ...
High Up-Front and End Stage Cost.
A balance between gravity and bouyancy is called
Answer:
I believe it is isostasy
Explanation:
What flows in a circuit to generate a current?
A. Protons
B. Electrons
C. Neutrons
Intro to Springs and Hooke’s law
How do most fossils form? Be sure to explain your
answer
I
Intro
Here your answer
Fossils are formed in a number of different ways, but most are formed when a plant or animal dies in a watery environment and is buried in mud and silt. Soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
hope it helps ☺️✌️
Answer:
over years of being underground the pressure causes the organism to press into the rock and form a mold. this mold is the fossil and are found in sedimentary rock
What is motion ,terms used to measure motion ,examples etc
Answer:
A physic term
Explanation:
Answer:
Cambio de lugar o de posición de un cuerpo en el espacio.
Explanation:
a 50 kg aardvark runs with a speed of 6 m/s. what is the kinetic energy of the aardvark
Answer:
900 J
Explanation:
0.5 x 50= 25 x 6^2= 900 J
can someone tell me the answer for both of these pleaseeee i need it asap!!! i will give brainlist!!
Answer:
1/ decreases
2/ yes;
In general there is no relationship, and any combinations of frequencies and amplitudes are allowed.
Explanation:
Explanation for 1/ - please see the picture attached below
Each gas sample has the same temperature and pressure. which sample occupies the greatest volume? each gas sample has the same temperature and pressure. which sample occupies the greatest volume? 40.0 gar 20.0 gne 20.0 gh2 4.0 ghe
Answer:
20 gram of H as the greastest volume
Explanation:
Each gas sample has the same temperature and pressure. which sample occupies the greatest volume? each gas sample has the same temperature and pressure. which sample occupies the greatest volume? 40.0 gar 20.0 gne 20.0 gh2 4.0 ghe
Given that,
40.0 g of Ar
20.0 g of Ne
20.0 g of h
24.0 g of he
The ideal gas equation ; Pv = nRT
where P is the pressure, V is the volume, R is the gas constant, T is the temperature, n is the number of mole
which is equal to
n = m / M
where m is the given mass
M is the molar mass
The given gas sample are at the same temperature and pressure,
So, the temperature, pressure and gas constant are fixed.
Therefore the volume is proportional to the given mass and molar mass
V ∝ m/M
Substitute the given mass and molar mass of given masses for comparison
No of mole of Ar = mass / molar mass
= 40 / 40 = 1 mole
No of mole of Ne = mass / molar mass
= 20 / 20 = 1 mole
No of mole of h = mass / molar mass
= 20 / 1 = 20 mole
No of mole of he = mass / molar mass
= 24 / 4 = 6 mole
Hence, 20 gram of H as the greastest volume
whoever answers correctly first will get brainiest
whats my middle name....?
clues:
a_n_l i_ e
3 missing letters
fill in the blanks! hehe
Answer:
annalise
Explanation:
::::::::::)))))))))
Choose the best definition for velocity
1. How fast something is going
2. Speed in a certain direction
3. Which direction something is going
4. Something speeding up
A 1200 kg car accelerates from 13m/s to 17m/s. find the change in momentum of the car?
Answer:
4800
Explanation:
The change in velocity of the car is 17-13=4m/s. Since the change in momentum is the mass multiplied by the change in velocity, the answer is 4*1200=4800. Hope this helps!
Given:
Mass,
m = 1200 kgChange in velocity,
Δv = 17-13= 4 m/s
Now,
The change in momentum is:
= [tex]Mass\times Change \ in \ velocity[/tex]
= [tex]1200\times 4[/tex]
= [tex]4800[/tex]
Thus the above answer is correct.
Learn more about momentum here:
https://brainly.com/question/8644950
you drop a rock off of a cliff, and it hits the ground 8.1 seconds later. how tall is the cliff?
Answer:
the answers is 321 m
Explanation:
here's a picture of it
Which statement is NOT an advantage of renewable resources? A They produce clean energy. B They are expensive to collect and transform into energy. C They are safe for the environment. D They replenish quickly.
Answer:
B. They are expensive to collect and transform into energy.
Explanation:
All of the other options are positive aspects of renewable resources. B is the only disadvantage of renewable resources given in the question.
Answer:
They are expensive to collect and transform into energy.
Explanation:
Edge
What major purposes do barrier islands serve?
Answer:
Barrier islands serve two main functions. First, they protect the coastlines from severe storm damage. Second, they harbor several habitats that are refuges for wildlife.
Explanation:
a bicyclist rides with a constant speed of 7 m/s. What is his initial speed?
Answer:
initial speed of the bicker = 7m/s
Un trineo de 8.00kg se mueve en línea recta sobre una superficie horizontal sin fricción.En cierto punto su rapidez es de 4.00m/s 2.50m más adelante es de 6.00m/s
Answer:
An 8 kg sled mass moves in a straight line on a surface without horizontal friction at a certain point its speed is 4 m / s 2.50 m later its speed is 6 m / s using the work and energy theorem, determine the force acting on the sled assuming it is constant and acts in the direction of the sled movement
The force acting on the 8 kg sled has a value of 32 N.
Explanation:
We have initially look for the work that is applied to the sled, and this will be nothing more than the difference in kinetic energy from the end point to the initial, then:
ΔEc = Ec₂ - Ec₁
ΔEc = 0.5 * m * [V₂² - V₁²]
ΔEc = 0.5* 8 kg * [(6m / s) ² - (4m / s) ²]
ΔEc = 80 J
So, the work is 80 J, now we know that work is a relation distance and force , such that:
W = F * d
F = W / d
F = (80 J) / (2.50 m)
F = 32 N
Therefore, the force acting on the sled is 32 N.
Which of the following results was evidence that the proton was part of an atom's nucleus?
A). The alpha particles passed straight through the foil.
B). A few hits of alpha particles were noticed on the sides of the film.
C). The alpha particles stayed stuck to the gold foil.
D). The alpha particles shot at the gold foil straight back off the foil and stuck the front side of the film.
Answer: The answer should be
A). The alpha particles passed straight through the foil.
Answer:
D
Explanation:
When a warm air mass and cold air mass come together, like a warm front and cold front, a typical outcome is rain. What explains why rain forms in this situation?
A. The cold air causes the moisture in the warm air to condense and precipitate as rain.
B. The cold air is moving faster than the warm air, which causes rain.
C. Because the cold air is denser, it causes rain.
D. The two air masses neutralize each other, which results in clouds that produce rain.
Answer:
A,when the two air masses meet,the cold air cools the block if warm air,causing it to condense and form stratus clouds( blankets of blank clouds that form when air rises slowly e.g. a warm air mass meets a cold one). Eventually when the cloud becomes saturated precipitation falls from them(precipitation is moisture in any form that falls from the atmosphere).
please answer I'll give brainlist
Assuming the sound wave moves with the speed of air ( 340 m/s), what is the wavelength of the wave?
Answer:
suppose frequency of sound = 100Hz
then wavelength = speed/ frequency
= 340/100= 3.4 m
if the 50 kg objects slows down to a velocity of 1 m/s how much kinetic energy does it have?
Answer: 25
Explanation:
The kinetic energy of the object moving at the given mass and velocity is 25 J.
The given parameters;
mass of the object, m = 50 kgvelocity of the object, v = 1 m/sThe kinetic energy of the object moving at the given mass and velocity is calculated as follows;
K.E = ¹/₂mv²
K.E = ¹/₂ x 50 x 1²
K.E = 25 J
Thus, the kinetic energy of the object moving at the given mass and velocity is 25 J.
Learn more here:https://brainly.com/question/23503524
Becky has a shower and uses 20,000g of water with a specific heat capacity of 4200J/KG. When the water is supplied with 336,000J of energy, it heats up to 50^c. What is the startig temperature of the water?
Answer:
46°C
Explanation:
q = mCΔT
336,000 J = (20 kg) (4200 J/kg/°C) (50°C − T)
T = 46°C
Becky takes a shower, and he uses 20,000 g of water with specific heat of 4200 J/kg then the starting temperature of the water will be equal to 46 °C.
What is Specific heat?Specific heat is the amount of energy needed to raise a product's temperature by one degree Celsius per gram. Traditionally, the units of heat capacity are calorie or joules per gram per degree Celsius. The specific heat of water, for instance, is 1 calorie (or 4.186 joules) per gram per degree Celsius.
In the 18th century, the Scottish scientist Joseph Black noted that equivalent masses of various substances required varying quantities of heat to increase them across the same ambient temperature. Based on this discovery, he developed the theory of specific heat.
From the given data in the question,
q = mCΔT
Here ΔT is the change in the temperature.
336,000 J = (20 kg) × (4200) × (50 °C − T)
T = 46 °C
Therefore, the starting temperature of the water is 46 °C.
To know more about Specific heat:
https://brainly.com/question/11297584
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How are the electric field lines around a positive charge affected when a second positive charge is near it?
Answer:Because it likes to repel and attract opposites
Which of the following planets has a diameter that is larger than the diameter of the Earth?
Answer:
Jupiter
Explanation:
Jupiter is the largest planet in our solar system and is about 11 times larger than earth.
An air-track glider attached to a spring oscillates between the 10.0 cm mark and the 61.0 cm mark on the track. The glider completes 11.0 oscillations in 31.0 s
Answer:
T = 2.82 seconds.
The frequency [tex]\mathbf{f = 0.36 \ Hz}[/tex]
Amplitude A = 25.5 cm
The maximum speed of the glider is [tex]\mathbf{v = 56.87 \ rad/s}[/tex]
Explanation:
Given that:
the time taken for 11 oscillations is 31 seconds ;
SO, the time taken for one oscillation is :
[tex]T = \frac{31}{11}[/tex]
T = 2.82 seconds.
The formula for calculating frequency can be expressed as :
[tex]f = \frac{1}{T}[/tex]
[tex]f = \frac{1}{2.82}[/tex]
[tex]\mathbf{f = 0.36 \ Hz}[/tex]
The amplitude is determined by using the formula:
[tex]A = \frac{d}{2}[/tex]
The limits that the spring makes the oscillations are from 10 cm to 61 cm.
The distance of the glider is, d = (61 - 10 )cm = 51 cm
Replacing 51 for d in the above equation
[tex]A = \frac{51}{2}[/tex]
A = 25.5 cm
The maximum speed of the glider is:
[tex]v = A \omega[/tex]
where ;
[tex]\omega = \frac{2 \pi}{T}[/tex]
[tex]\omega = \frac{2 \pi}{2.82}[/tex]
[tex]\omega = 2.23 \ rad/s[/tex]
[tex]v = A \omega[/tex]
[tex]v = 25.5 *2.23[/tex]
[tex]\mathbf{v = 56.87 \ rad/s}[/tex]
4. The batteries on electric vehicles are recharged using electricity from either a wall socket or dedicated charging
unit.
A) O True
B) O False
Answer:
Hey!
Your answer is A) TRUE!
Explanation:
The electricity in this instance is called "grid-electricity" because it has come from a generation plant elsewhere instead of recharging the batteries via Kinetic/Potential energy...
