Answer: Frequency of 1 ÷ 2 = 0.5 Hz.
How are the ingredients in a mixture of iron filings and sand affected by being combined?
answer choices
1. Both the iron filings and the sand maintain their original physical properties when combined.
2. The physical properties of the sand change but those of the iron filings do not.
3. Neither the iron filings nor the sand maintain their original physical properties when combined.
4. The physical properties of the iron filings change but those of the sand do not.
Answer: Its A. Both the iron filings and the sand maintain their original physical properties when combined.
Explanation:
If a car is moving with a speed of 5 km/h on a highway. Find the distance travelled by the car in 2 hours?.
Answer:
Distance = 10 kilometers.
Explanation:
Given the following data;
Speed = 5km/h
Time = 2 hours
To find the distance traveled;
Distance = speed * time
Distance = 5 * 2
Distance = 10 kilometers
Therefore, the distance travelled by the car is 10 kilometers.
Your car battery is a 12 V DC source. Typically you might find a fuse that can handle a 5 amp surge. What resistance is that fuse protecting?
Answer:
2.4 ohms
Explanation:
From the question,
Applying ohm's law,
V = IR.................... Equation 1
Where V = Voltage of the car battery, I = current, R = resistance
Make R the subject of the equation
R = V/I.................. Equation 2
Given: V = 12 V, I = 5 amp.
Substitute these values into equation 2
R = 12/5
R = 2.4 ohms
Projectile Motion
a. Identify the variables (givens and unknown.) Remember to include the units.
B. Which kinematic formula should you use to solve?
C. Solve the problems.
An egg is thrown horizontally off the roof.
Which is 70 meters high, with an
initial velocity of 5.5 m/s. How long does it take to hit the ground? How far
does it go in the x direction?
3 variable
Variable Chart Given and Unknown?
PLEASE HELP ME FAST ITS 25 POINTS
Answer:thx
Explanation:
30 points, brainiest, high school physics problem, please help.
a sound effect balloon is
Answer:
Hey mate...
Explanation:
This is ur answer...
A balloon sound effect is pop or bang....
hope it helps you,
Follow me
Answer:
Popping sound
Explanation:
It gives a pop sound when it blows off
help help help help help
Answer:
It is cold at saturn and far away
Explanation:
Explain you could use a battery, wire and compass to
determine whether or not the right hand rule works.
ASSAP PLEASE
Answer:
oh I'm so sorry I can't answer your question it has been a long time since I learned that. so I totally forgot how to do this. sorry!
How is Venus similar to Earth?
Both have the same day length.
Both rotate in the same direction.
Both have ample water on their surfaces.
Both have a solid inner core and a liquid outer core.
Answer: D
Explanation: I have my answers VS. Go0gle answers (go0gle answers are pics)
(A) Both have the same day length. Well, Venus doesn't havve the same amount of days. (I already know off the top of my head, but I still searched it up)
(B) Both rotate in the same direction. In school (before Virus) they would always show diagrams of the planets on the projector and Venus doesn't rotate
(C) Both have ample water. No. Venus doesn't have much water >_>
(D) Both have a solid inner core and a liquid outer core. Yesh. In my lessons (before), Venus has a solid inner core and liquid outer core.
According to Jean Piaget, in what stage of cognitive development are children able to understand conservation tasks?
Answer:
Preoperational
Explanation:
According to Piaget's theory of cognitive development, the preoperational stage is the second stage. This stage includes children between the age group of 2 to 7 years. Children can understand conservation tasks and learn to manipulate various symbols during this stage.
So, the answer is the preoperational stage.
Answer:
B Preoperational
Explanation:
This is the answer the person above is correct!
This is for edge 2021/2022
Hope this helps!!
Scattering occurs when a material emits light, and then re-emits the light in different directions.
true or false
120 J of work was done to lift an object 6 m above
the ground. How much force was applied to this
object and what was its mass?
Select one:
120 N, 5 kg
O
20 N, 3.04 kg
O
720 N, 12.3 kg
O 20 N, 2.04 kg
Answer:
The last option, 20 N and 2.04 kg
Explanation:
work = (force)(distance)
work = 120 joules
distance: 6 m
rearrange to find force:
120=(6)F
F= 120/6 = 20 Newtons.
Assuming its lifted from Earth's surface, the force of gravity will be 9.81 m/s^2. Let's find mass:
F=mg
m=F/g
m=(20)/(9.81)= 2.038 kg
Which represents an endothermic reaction? wood burning in a fire splitting a gas molecule using a heat pack on an injury TNT exploding
Answer:
b
Explanation:
The statement which represents an endothermic reaction is using a heat pack on an injury.
What is an endothermic reaction?An endothermic reaction is a type of chemical reaction that absorbs heat energy from the surroundings. In other words, in an endothermic reaction, energy is taken in from the environment as the reaction proceeds, resulting in a decrease in the temperature of the surroundings.
Endothermic reactions require an input of energy to occur, usually in the form of heat, light, or electricity. This energy is used to break the bonds between atoms or molecules in the reactants, and the products formed have higher potential energy than the reactants. The excess energy is absorbed from the surroundings to compensate for this increase in potential energy.
Examples of endothermic reactions include melting ice, evaporating water, and baking soda reacting with vinegar to produce carbon dioxide gas. These reactions require an input of energy to occur and absorb heat from the surroundings, resulting in a decrease in the temperature of the surrounding environment.
Here in this question,
Endothermic reactions absorb heat energy from the surroundings, meaning that they require energy input to proceed. In the case of using a heat pack on an injury, energy is required to activate the reaction that produces heat and provides warmth to the injured area. This process absorbs heat from the environment, making it an endothermic reaction.
In contrast, wood burning in a fire and TNT exploding are exothermic reactions because they release heat energy into the surroundings, which means that they produce heat as a byproduct. The splitting of a gas molecule is not an endothermic or exothermic reaction, but rather a chemical reaction that can be either endothermic or exothermic depending on the specific reaction and conditions involved.
Therefore, The correct answer is using a heat pack on an injury.
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help please help!!!!!!!!
1. Electron
2. Neutron
3. Nucleus
4. Atom
5. Molecule
write the relation between horsepower and Watt?
Explanation:
Horsepower is related to watt as: 1 horsepower = 746 W = 750 W approximately. 1 horsepower (HP) = 750 watt (approx.) The power is one watt when one joule of work is done in one second.
Answer:
1HP = 746 watts
Explanation:
The relation between Horsepower and watt is that One Horse Power is equal to 746 Watts .
[tex]\large{\boxed{ \sf 1 HP = 746 Watts = 0.746 kW }}[/tex]
Which quantity is most closely related to the speed of gas particles? (2 points)
A The temperature of the gas
B The number of molecules in the gas
C The density of the gas
D The total volume of the gas
Quantity is most closely related to the speed of gas particles is the temperature of the gas.
Specifically, the speed of the molecules in a gas is dependent on its temperature (the higher the temperature the faster the gas molecules move). Another way to think of it is that the temperature of a gas is a measure of the average kinetic energy of that gas.
What is temperature ?"Temperature is the measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius. Temperature indicates the direction in which heat energy will spontaneously flow—i.e., from a hotter body (one at a higher temperature) to a colder body (one at a lower temperature)."
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City A is much larger than city B, but they are located at the same latitude and elevation. However, city A is receiving more rainfall than city B. Given this information, which statement most likely explains why?
Answer:
City A has more large buildings than city B, which force more air upward into the atmosphere.
Explanation:
The statement which most likely explains why city A is receiving more rainfall than city B despite its larger area is because "City A has more large buildings than city B, which force more air upward into the atmosphere."
This is evident in the fact that city A's large buildings contribute a stream of lift to raise warm, moist, surface air into the humid air right over the area, where it then transformed into rain clouds.
If the distance between 2 charged particles is double, the force between them changes by a factor of?
Answer:
See explanation
Explanation:
Given that;
q1 and q2 are the magnitudes of the two charges while r1 is the distance between the charges.
F1 =kq1q2/r1^2
Then,
F2 = kq1q2/(2r1)^2
F2 = kq1q2/4r1^2
So,
F2 = 1/4 F1
The force between the charges changes by a factor of 1/4.
Calculate the charge that flows through the cell in 1 minute. Each filament lamp has a power of 3 W and a resistance of 12 Ω
Answer:
24 Coulumbs
Explanation:
Given data
time= 1 minute= 6 seconds
P=2 W
R= 12 ohm
We know that
P= I^2R
P/R= I^2
2/12= I^2
I^2= 0.166
I= √0.166
I= 0.4 amps
We know also that
Q= It
substitute
Q= 0.4*60
Q= 24 Columbs
Hence the charge is 24 Coulumbs
Answer:
30C
Explanation:
its basically how the other guy did it but he worked it out with 2W instead of 3W so he got it wrong so its 30C and not 24C
4. Un móvil lleva una velocidad de 75 m/s, en dicho momento aplica los frenos durante tiempo de 15 segundos hasta detenerse. ¿cuál será la aceleración del frenado? ¿cuál es la distancia que recorre hasta detenerse?
Answer:
a = 5 m / s² and x = 562.5 m
Explanation:
Let's apply the kinematics relations
v = v₀ + at
v² = v₀² + 2a x
In this case, as the car stops, its final speed is zero (v = 0) and the acceleration must be opposite to the speed, that is, negative
0 = v₀ - a t
a = v₀ / t
let's calculate
a = 75/15
a = 5 m / s²
let's look for the distance
0 = v₀² - 2a x
x = v₀² / 2a
let's calculate
x = [tex]\frac{75^2}{2 \ 5 }[/tex]
x = 562.5 m
Please help only have a short amount of time left!
Which of the meters illustrated will display the greatest amount of current?
Answer:
I think all will display the same value
Explanation:
Sorry if this is wrong
Answer:
I think it's option a. this is because,it has longer conductivity.
this might be wrong. I am just in jss2 but I read physics
What is the best definition of solar radiation?(giving brainliest)
-Storing of energy in Earth's oceans
-Energy from the Sun that reaches Earth
-Moisture and heat energy in the atmosphere
-Increased evaporation due to warm water
Two waves are traveling through a tube. Wave X has an amplitude of 1 cm, and wave Y has twice the amplitude of wave X. The energy of wave Y is
A.
four times that of wave X.
B.
two times that of wave X.
C.
one-fourth times that of wave X.
D.
half times that of wave X.
Answer:
it is A
Explanation:
i had the question
What causes seafloor spreading, subduction, and the movement of
tectonic plates?
Answer:
Subduction happens where tectonic plates crash into each other instead of spreading apart. At subduction zones, the edge of the denser plate subducts, or slides, beneath the less-dense one. The denser lithospheric material then melts back into the Earth's mantle. Seafloor spreading creates new crust.
Explanation:
hope it helps i do not know if that is the kind of answer you wanted or not but i tried
2. A flywheel speeds up uniformly from rest to 900 rpm in 2 minutes. A) Find the angular
acceleration. B) Find the tangential acceleration of the rim if the flywheel has a 0.5 m radius.
Answer:
A) 450 B)3.5
Explanation:
If Speed = Distance / Time, then a marble rolling 49 cm in 7 seconds is
moving at
343 cm/s
.142 cm/s
7 cm/s
not moving at all.
Distance = 49
Time = 7
49/7 = 7
7 CM/S
The foghorn blast from a big ship is a very loud sound . What is the best example of a very high pitched sound
Answer:
Whistle
Explanation:
High pitched sound is a type of sound that has a high-frequency sound wave or outstanding pitch than other sounds in the area of observation.
There are various examples of high pitch sound, some of them include:
Nails scratching on the blackboard, School bell, Rubber shoes squeaking against a basketball court, Fireworks.
The most common high pitch sound and usually the best example is WHISTLE.
Un cuerpo de 480 g de masa es atraído con una fuerza de 3.9 E-6 N por otro cuerpo de 196 g de masa. Calcula la distancia a la que se encuentran.
Answer:
La distancia entre los dos cuerpos es aproximadamente 1.269 milímetros.
Explanation:
Asumamos que ambos cuerpos son partículas, la fuerza de atracción ([tex]F[/tex]), en newtons, entre ambos cuerpos se define mediante la Ley de Newton de la Gravitación Universal, cuya ecuación es:
[tex]F = G \cdot \frac{m_{1}\cdot m_{2}}{r^{2}}[/tex] (1)
Donde:
[tex]G[/tex] - Constante de la gravitación universal, en metros cúbicos por kilogramo-segundo cuadrado.
[tex]m_{1}, m_{2}[/tex] - Masas de los cuerpos, en kilogramos.
[tex]r[/tex] - Distancia entre los cuerpos, en metros.
Si sabemos que [tex]G = 6.674\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}}[/tex], [tex]m_{1} = 0.48\,kg[/tex], [tex]m_{2} = 0.196\,kg[/tex] y [tex]F = 3.9\times 10^{-6}\,N[/tex], entonces la distancia entre los dos cuerpos es:
[tex]r = \sqrt{\frac{G\cdot m_{1}\cdot m_{2}}{F} }[/tex]
[tex]r \approx 1.269\times 10^{-3}\,m[/tex]
Es decir, la distancia entre los dos cuerpos es aproximadamente 1.269 milímetros.
Ice is made of water so why does it float?
Answer:Its a Soild
Explanation:
A printer has a power of 100 W. It takes 30 seconds to print out a document. How much energy will it
have used?
100W translates to 100 watts consumed in 1 hour. Assuming the printer consumes electrical energy at a steady rate, then: 100 ÷ 60 = 1.6667 watts per minute. 1.6667 ÷ 2 = 0.8333 watts consumed in 30 seconds.
A printer has power of 100 W, and it takes time of 30 seconds to print out the document, then the power consumed in 30 seconds will be 0.8333 W.
What is Power?The quantity of energy moved or changed per unit of time is termed as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in historical texts. A scalar quantity is power.
Power is connected to other factors; for instance, the power required to move a land vehicle is equivalent to the sum of the vehicle's velocity, traction force on its wheels, and aerodynamic drag.
Assuming the printer consumes electrical energy at a steady rate, then:
100 ÷ 60 = 1.6667 watts per minute.
Now, calculate the power consumed in 30 seconds,
1.6667 ÷ 2 = 0.8333 watts.
Therefore, the power consumed in 30 seconds will be 0.8333 watts.
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