Pam is running in a race at 3.3 m/s and accelerates at a rate of 3 m/s for the last 15 meters. How fast is she running when she crosses the finish line?
Answer:
Pam's velocity when she crosses the finish line is 10 m/s.
Explanation:
Given;
initial velocity of Pam, u = 3.3 m/s
acceleration of Pam, a = 3 m/s²
last distance covered, d = 15 m
let her final velocity = v
Apply the following kinematic equation to determine Pam's final velocity;
v² = u² + 2ad
v² = 3.3² + 2(3)(15)
v² = 10.89 + 90
v² = 100.89
v = √100.89
v = 10 m/s
Therefore, Pam's velocity when she crosses the finish line is 10 m/s.
Violet light (410 nm) and red light (685 nm) pass through a diffraction grating with d = 3.33 x 10-6 m. What is the angular separation between them for m = 2?
Answer:10.03
Explanation:
right on acellus
Which wave has the lowest amplitude?
Wave D has the lowest amplitude. The highest point of a wave is called amplitude.
What is amplitude?The distance between from the crest of a wave to the next crest is known as the amplitude. It is denoted by a.
The standard equation for the SHM is found as;
[tex]\rm y = asin \omega t[/tex]
Where, a represent the amplitude of the wave.
In the wave D it is observed that the distance from center axis to the highest point of the wave is smallest. Hence, wave D has the lowest amplitude.
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Answer:
To summarize what the expert answer said, it's the last box.
Explanation:
Starting circuit One battery. 2 light bulbs in parallel; switch What is the voltage across the battery? What is the voltage across light bulb 1? What is the voltage across light bulb 2?
Answer:
The voltage across light bulb 1 and light bulb 2 is the the same i.e V
Explanation:
In a parallel circuit, the Voltage is same across all the components of the circuit and the current flowing through each component is added to get the total current across the circuit.
Let us say, the voltage across the circuit is V. The voltage across light bulb 1 and light bulb 2 is the the same i.e V
Define Initial velocity.
Answer:
Initial velocity is defined as the velocity at time t=0.
Its Unit is m/s.
represented by u.
calculated by using formula.
v=u+at
u=v-at.
Answer:
Initial velocity is the velocity which the body has in the beginning of the given time period
Hope it helps
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2nd grade work. Anyone?
Which of these can move without being pushed or pulled?
shadow
road sign
kitten
bubble gum
Answer:
A. shadow
Explanation:
Answer: A is the correct answer!
Explanation:
A train was moving at 50m/s and slow down to 20 m/s in 50 seconds, what was its acceleration?
Answer:
-0.6 m/s^2
Explanation:
a = change in velocity / time
change in velocity = 50 m/s - 20 m/s = 30 m/s
time = 50 s
30 m/s / 50s
= 0.6 m/s^2
because it is decelarating, it will be -0.6 m/s^2
Three dogs scout sparky and dusty are playing with a teddy bear. Scout and sparky are pullung the teddy bear to the left
Answer:
To the left side.
Explanation:
The teddy bear will move towards the left side because more force is applied by scout and sparky than dusty. The reason for this movement of teddy bear to the left is due to more force is applied by the two dogs present at the left side of the teddy bear while on the other hand, one dog is present at the right side of teddy bear which applied less force so that's why we can say that the teddy bear moves to the left side rather than to the right side.
What is the wave length of the instruments playing at this frequency if the speed of sound is 342m/s
Answer:
6.84m
Explanation:
The question you asked didn't specify the frequency of the instrument, so I'm going to assume for the question sake.
For the question, we will use the formula
λ = V/F, where
λ = the wavelength we're looking for
V = Velocity of the sound
F = frequency of sound.
Assuming that the frequency of the instrument is 50Hz.
λ = 342/50
λ = 6.84 m
Un automóvil se mueve 80 m en 40 s con una velocidad constante. ¿Cuál es la velocidad del automóvil? Ayuda plissssssssssssssssssssss
Answer:
Velocidad = 2 m/s
Explanation:
Dados los siguientes datos;
Distancia = 80 m
Tiempo = 40 s
Para encontrar la velocidad del automóvil;
La velocidad se puede definir como la tasa de cambio en el desplazamiento (distancia) con el tiempo.
La velocidad es una cantidad vectorial y, como tal, tiene magnitud y dirección.
Matemáticamente, la velocidad viene dada por la ecuación;
[tex] Velocidad = \frac {distancia} {tiempo} [/tex]
Sustituyendo en la fórmula, tenemos;
Velocidad = 80/40
Velocidad = 2 m/s
A mother has the genotype Bb for brother green eyes, the months did heterozygous hair, what is the genotype of the father ?
Assuming brown hair (B) color is completely dominant over blond hair (b), then the father's genotype must be bb.
how many different plant and animal species can be found in tropical rainforests
PLEASE ANSWER BY TODAY!
A, A couple hundred
B, 100 thousand.
C, 10 thousand.
D, Millions.
Answer:
Correct answer is B.
Explanation:
The world's most ecologically diverse terrestrial ecosystems are tropical rainforests. The Amazon rainforest is the largest tropical rainforest on the planet. Around 40,000 plant species, approximately 1,300 bird species, 3,000 fish species, 427 animal species, and 2.5 million insect species call it home.In total around 100 thousand different plant and animal species can be found in tropical rainforests.
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Hi, I'm stuck on the problem: Consider a resistor (R=1000 kΩ) and a capacitor (C=1μF) connected in series. This configuration is connected in series to a battery with an emf of 10 V. Find the maximum voltage in [V] across the capacitor. Find the maximum charge on the capacitor in [µC]. How long will it take until the capacitor has a potential difference of 5 V?
Answer:
Following are the responses to the given choices:
Explanation:
The maximum pressure is 10 V from across condenser.
The highest charge mostly on condenser.
[tex]vc = 10\times 1\ mf\\\\[/tex]
[tex]= 10^{-5}\ C[/tex]
The time it takes for the condenser to be 5 V different.
[tex]time = ln_2 \times 1000 \times 1mf[/tex]
[tex]=0 .69 \times 10^{-3}\ sec[/tex]
A bear fells from 10m long grass
From where the bear is
You have viewed multiple unknown astronomical objects in this lab activity. In all tests, what was your test variable (independent variable)?
The amount of an element in each object
The type of elements in each spectrum
The astronomical object viewed by the spectrometer
Answer:
Could you give information about the lab
Explanation:
Answer:
The spectrum of each astronomical object
Explanation:
I took the test and got it right
Susan gently pushes the tip of her finger against the eraser on her pencil and the pencil does not move. Which of the
following figures best illustrates the interaction of forces between Susan's finger and her pencil?
Answer: D. ➡️⬅️
Explanation: I just knew the answer ;)
(b) The cylinder shown in figure 2 is fitted with a freely sliding piston containing an ideal gas of mass 13g and volume 1.0×10⁴ cm⁵ . The tempreture of the gas is 25°C and it is initially at atmospheric pressure.
(i) The gas is heated to a Tempreture of 400°C . what is the new volume of the gas?
Answer:
22600 cm³ (3 s.f.)
Explanation:
Please see the attached picture for the full solution.
An astronaut lands on an alien planet. He places a pendulum (L = 0.200 m) on the surface and sets it in simple harmonic motion, as shown in this graph.
(a) What is the period and frequency of the pendulum’s motion?
(b) How many seconds out of phase with the displacements shown would graphs of the velocity and acceleration be?
(c) What is the acceleration due to gravity on the surface of the planet in? Determine the number of g-forces.
Show any necessary calculations.
Nanotechnology is currently used in electronics for
organ repair, data storage, and wires.
organ repair, quantum dots, and carriers.
data storage, OLEDs, and wires.
carriers, OLEDs, and skin transplants.
Answer:
data storage, OLEDS, and wires
Explanation:
Nanotechnology is currently used in electronics for data storage, OLEDs, and wires. Option C is correct.
What is nanotechnology?Nanotechnology is the near-atomic manipulation of matter to create new structures, materials, and gadgets.
The technique offers scientific improvement in a variety of fields, including medical, consumer goods, energy, materials, and manufacturing.
Nanotechnology is currently used in electronics for data storage, OLEDs, and wires.
Hence, option C is correct.
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Khalid has been studying the gravitational attraction between three pairs of objects. The table shows the distance between each pair and the gravitational attraction between them relative to the other pairs. Which two objects have the greatest
gravitational force, Explain Your Answer?
Answer:
Explanation:
Probably the most famous force of all is gravity. We humans on earth think of gravity as an apple hitting Isaac Newton on the head. Gravity means that stuff falls down. But this is only our experience of gravity. In truth, just as the earth pulls the apple towards it due to a gravitational force, the apple pulls the earth as well. The thing is, the earth is just so massive that it overwhelms all the gravity interactions of every other object on the planet. Every object with mass exerts a gravitational force on every other object. And there is a formula for calculating the strengths of these forces, as depicted in the diagram below:
Diagram of gravitational forces between two spheres
Diagram of gravitational forces between two spheres
Let’s examine this formula a bit more closely.
F refers to the gravitational force, the vector we ultimately want to compute and pass into our applyForce() function.
G is the universal gravitational constant, which in our world equals 6.67428 x 10^-11 meters cubed per kilogram per second squared. This is a pretty important number if your name is Isaac Newton or Albert Einstein. It’s not an important number if you are a ProcessingJS programmer. Again, it’s a constant that we can use to make the forces in our world weaker or stronger. Just making it equal to one and ignoring it isn’t such a terrible choice either.
m_1m
1
m, start subscript, 1, end subscript and m_2m
2
m, start subscript, 2, end subscript are the masses of objects 1 and 2. As we saw with Newton’s second law (\vec{F} = M\vec{A}
F
=M
A
F, with, vector, on top, equals, M, A, with, vector, on top), mass is also something we could choose to ignore. After all, shapes drawn on the screen don’t actually have a physical mass. However, if we keep these values, we can create more interesting simulations in which “bigger” objects exert a stronger gravitational force than smaller ones.
\hat{r}
r
^
r, with, hat, on top refers to the unit vector pointing from object 1 to object 2. As we’ll see in a moment, we can compute this direction vector by subtracting the location of one object from the other.
r^2r
2
r, squared refers to the distance between the two objects squared. Let’s take a moment to think about this a bit more. With everything on the top of the formula—G, m_1m
1
m, start subscript, 1, end subscript, m_2m
2
m, start subscript, 2, end subscript—the bigger its value, the stronger the force. Big mass, big force. Big G, big force. Now, when we divide by something, we have the opposite. The strength of the force is inversely proportional to the distance squared. The farther away an object is, the weaker the force; the closer, the stronger.
Hopefully by now the formula makes some sense to us. We’ve looked at a diagram and dissected the individual components of the formula. Now it’s time to figure out how we translate the math into ProcessingJS code. Let’s make the following assumptions.
We have two objects, and:
Each object has a PVector location: location1 and location2.
Each object has a numeric mass: mass1 and mass2.
There is a numeric variable G for the universal gravitational constant.
Given these assumptions, we want to compute a PVector force, the force of gravity. We’ll do it in two parts. First, we’ll compute the direction of the force \hat{r}
r
^
r, with, hat, on top in the formula above. Second, we’ll calculate the strength of the force according to the masses and distance.
Remember when we figured out how to have an object accelerate towards the mouse? We're going to use the same logic.
The atomic number is equal to the number of _________ in the atom.
Question 8 options:
protons
protons and neutrons
neutrons
protons, neutrons, and electrons
Answer:
Proton
Explanation:
Atomic number, the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.
Suppose you take
a short piece of wire that is not
attached to anything and move it up and down in a
magnetic field. Explain whether or not a current will be
induced, and why.
Answer:
a current will be induced.
Explanation:
Answer:
Explanation:Sample Response: A current will not be induced because the wire is not part of a closed circuit. The electrons have no place to flow to.
What did you include in your response? Check all that apply.
A current will not be induced.
The wire is not part of a closed circuit.
This graph shows how the reaction rate of a chemical reaction changed as concentration of reactant changed. Which sentence best describes how the reaction rate changed.
Answer:
A
Explanation:
The Reaction rate is going down which is why its at 0 And the concetration line is going up which means increasing,
Genes consist portions of _____.
~Chapter Name: Heats and its effects ~
(Collecting Information)
how does a veterinary doctor (a doctor who treats animals) find out the body temperature of domestic animals or birds?
Go to the nearest veterinary clinic and find out
(I don't have a clinic near it miles away so pls help)
Answer:
Either orally or rectally
Explanation:
(I didn't visit the vet clinic, I just searched it up)
It depends on the animal. You can't check a birds temperature with a thermometer because it will rupture its cloaca gland but you can check its poop.
Answer:
thermometer is used by veterinary doctors to find out the temperature of domestic animals .
a light ray reflects with an angle of 65 degrees what is the angle of refraction?
A. 65 degrees
B. 90 degrees
C. 32.5 degrees
D. 25 degrees
brainliest if correct
Answer:
A
Explanation:
An iron atom (Fe) has 26 protons in it. If the atom has 20 electrons in it, explain what type of charge it has and how you can tell.
Answer:
The iron atom has a positive charge, making it a cation.
Explanation:
The atom has a nucleus, where the protons and neutrons, which are the subatomic particles with the highest mass, are located. Practically all the mass of the atom is concentrated in the nucleus.Protons have a positive electrical charge, while neutrons have no charge.
Electrons move around the nucleus with other negatively charged particles.
An iron atom (Fe) has 26 protons and 20 electrons in it. That is, there are 6 more protons than electrons. As mentioned, protons are positively charged. So the iron atom has a positive charge, making it a cation.
As the period of a wave increases, the frequency increases.
Please select the best answer from the choices provided
T/F
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hshdhdhdhdh
whdhdhdhdj
shdhdhdhjd
dbdhdhdhdh
rjrjdjrjjdjr
dbdjdjdjdjd
ndjdjdhdhd
Which activities will help improve your flexibility? A. Yoga B. Dance C. Pilates D. All of the above
Answer: I believe that the answer is D.
Explanation:
Hope this helps and have a great day! :)
Answer:
D) all of the above
Explanation:
How come we can see orange? In simple words.
Answer:
When sunlight shines through an orange solution, the violet, blue and green wavelengths are absorbed. The other colors pass through.