Please help its a weird and confusing question?
PLEASE HELP ASAP, WILL MARK BRAINLIEST!!!!
Answer:
it's yellowish orange (3)
Explanation:
A grapefruit has a pH of somewhere between 2.9-3.3 and it is quite acidic. The juice of a grapefruit can cause erosion of tooth enamel and cause damage to one's teeth if ate excessively
What is the total resistance of the circuit shown below?
(Please help)
[tex]\huge{ \mathfrak{ \underline{Answer : }}} [/tex]
In the given figure, the resistors are joined in parallel connection.
Let's solve for total resistance [tex]R_t[/tex] :
[tex] \dfrac{1}{R_t} = \dfrac{1}{ R_1} + \dfrac{1}{R_2} [/tex][tex] \dfrac{1}{R_t} = \dfrac{1}{20} + \dfrac{1}{30} [/tex][tex]\dfrac{1}{R_t} = \dfrac{3 + 2}{60} [/tex][tex]\dfrac{1}{R_t} = \dfrac{5}{60} [/tex][tex]{R_t} = \dfrac{60}{5} [/tex][tex]{R_t} = 12 \: \: ohms[/tex]____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Identify the products in this chemical equation
2A1 + 3FeO - Al2O3 + 3Fe
14. The resistance of dry human skin is about 500,000 ohms and wet,
sweaty, human skin is about 1000 ohms. How much current passes across
someone's fingers if they touch the leads of a 9 Volt battery when their skin
is WET?
Answer:
current is equal to V/R
Explanation:
I = 9/1000A
[tex]9 \times 10 ^{ - 3} [/tex]
Explain how center of mass helps the system to move as well as rotate
Since Newton's laws dictate that the center in mass of every system of material points would travel along a straight line in the absence of external powers. The body will turn and rotate in almost any direction if there is an external field of forces.
A student claims that water's polarity is the reason it has a high specific heat. What method could the student use to test his claim? (2 points)
a
Perform research to see if other polar molecules have high specific heat
b
Measure how much energy it takes to increase the temperature of water by one degree
c
Mix water with an acid and test the new specific heat
d
Determine how dissolving salt in water affects the specific heat
Answer:
Explanation:
a. Yes, other polar molecules also have high specific heat
b. To heat 1g of water up by 1 degree C, it takes 4.186J of energy
c. The specific heat of an acid is less than water; e.g. HCl is 4.04J/g-C
d. Dissolving salt in water also lowers water's specific heat, e.g. NaCl is 0.86J/g-C
1. Velocity and speed are both calculated by using what formula?
Explanation:
Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.
An iron is supplied with a current of 3 A from the mains. The resistance of the iron is 1000
Calculate the power of the iron.
Answer:
1.6 An iron is supplied with a current of 3 A from the mains. The resistance of the iron is 100 Ω. Calculate the power of the iron. [2
A convex lens has a focal length of 12 cm, and has an object 8 cm from it. What is the magnification of the image?
Question 1 options:
1.5
1
3
2
Answer:
1.5
Explanation:
Which one of these wireless technologies is not in the permeable zone of the radio wave spectrum?
1. remote-controlled toy
2. broadcast television
3. garage door opener
4. weather radar
Electromagnetic waves are a form of what type of energy?
Let me know if its correct or incorrect.
Answer:
The correct answer is - radiant.
Explanation:
Electromagnetic waves are the transverse waves that get energy as radiation from the source and transfer to an absorber so, the radiant energy is the energy of electromagnetic waves.
Electromagnetic waves are can travel in space unlike mechanical waves and are made up of photons, tiny packets of energy. Electromagnetic waves or spectra include radio waves, infrared, light, microwaves, UV, X-rays, and gamma rays.
Which quantity must equal zero if a car is moving at a constant rate along a straight line?
A. direction of the car
B. energy of the car
C. speed of the car
D. acceleration of the car
The acceleration of the car must equal zero if a car is moving at a constant rate along a straight line.
What forces are acting on a car moving at a constant speed?A car moving at a constant speed (uniform motion) has all forces acting on it balanced. In this case, the two backward forces (air resistance and friction) perfectly balance the applied force of the wheels on the road in the opposite direction.
When the car is moving at a constant speed?Acceleration is defined as the rate of change in speed. So if the car is moving at a constant speed that means the rate of change in speed is zero. Hence, acceleration is zero.
Learn more about acceleration here https://brainly.com/question/14344386
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A cube has height of 3cm. What is the volume of the cube?
Answer:
27[tex]cm^{3}[/tex]
Explanation:
The formula to find the volume of a cube is Volume=height cubed(or to the power of 3) so you would replace height with 3cm and get the equation Volume= 3 to the power of 3. So 3 x 3 x 3 = 27. So your answer would be:
27[tex]cm^{3}[/tex]
Please tell me if this is Newton's first law, second, or third law of motion. There can be more than one of the same answer very desperate to pass science!
Answer: Hope This Helps!
Explanation:
1: Newton’s first law of motion can explain how a magician pulls a tablecloth from underneath the dishes. A negligible horizontal force is applied during the process. As per Newton’s first law of motion, the dishes and glasses remain in their state of motion (rest); as a result, they remain undisturbed.
2: Newton's First Law of Motion is defined as "An object at rest and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force."In soccer, when the soccer ball is in the soccer field and it is not moving, that means that it is at rest and there is no force acting upon it. When there is a person that is ready to play soccer and wants to kick the ball and play, then the unbalanced force would be the power from the person's foot.
3: Newtons third law can explain, as the cannonball is pushed forwards by the expanding high-pressure gases created by the exploding gunpowder, it pushes back on these gases. The gases push back on the cannon itself, causing it to roll backwards. Alternative answer: the cannon pushes forward on the cannonball. the reaction force is the cannonball pushing backwards on the cannon.
What property of an object describes its natural tendency to resist an acceleration?
In fact, it is the natural tendency of objects to resist changes in their state of motion. This tendency to resist changes in their state of motion is described as inertia. Inertia = the resistance an object has to a change in its state of motion.
How is elastic potential energy stored and released in the elastic cord or spring in it is sun lounger
Answer:
the answer is bts
Explanation:
3erdccdcwdcefdvefvwefwedc3rv3rv3vrecwscx
Which describes time dilation?
The faster an object moves, the more stretched time becomes.
The more slowly an object moves, the more stretched time becomes.
The faster an object moves, the more time it takes for light to travel a given distan
O The faster an object moves, the less time it takes for light to travel a given distanc
Answer:
A). The faster an object moves, the more stretched time becomes.
Explanation:
'Time dilation' is described as the 'slowing of the passage of time experienced by objects in motion relative to an observer that is measurable only at the relative speeds.' As per this particular relativity theory, the observer witnesses an elongated time with reference to the other setting. This reduction in speed of time(slowing down) becomes more clear and evident in the case of an object moving briskly near to the light's speed. Thus, option A is the correct answer.
Do noble gases lose or gain electrons to get a full valence shell?
how does a thermo flask retain heat
Answer:
A thermo flask has a cork which prevents heat loss by conduction.
It also has vacuum which prevents heat loss by convection.
The information shows the masses after the compounds are balanced.
2MgO + 2Cl2 → 2MgCl2 + O2
85g + 156g → 188g + ?
If the following materials are used during the reaction of magnesium, oxygen, and chlorine, what mass oxygen would we expect to see after the reaction and why?
A.
53g of O2, because all mass must be conserved.
B.
241g of O2, because all mass must be conserved.
C.
42.5g of O2, because all mass must be conserved, it would be half of the compound MgO in the products.
D.
106g of O2, because all mass must be conserved, it would be double the compound MgO in the products.
Answer:
The information shows the masses after the compounds are balanced.
2MgO + 2Cl2 → 2MgCl2 + O2
85g + 156g → 188g + 53g
as total mass in reactant is equal to product.
A.
53g of O2, because all mass must be conserved.
Which statement did Ernest Rutherford make about atoms?
A. Atoms are different for different elements.
B. The atom has a small, dense center.
O C. The atom is made up of smaller particles.
D. The energy of an electron depends on its specific orbit.
The statement did Ernest Rutherford make about atoms will be the atom has a small, dense center. Then the correct option is B.
What is the Ernest Rutherford model?The majority of alpha particles went right through the gold foil, signifying that particles are mostly made up of empty space. Several alpha particles were mildly distracted, indicating interactions with positively charged particles within the unit. Some alpha particles were spread at wide degrees, with a few even returning to the source.
Rutherford characterized the atom in 1911 as having an understanding, dense, and ionized center termed the nucleus. Rutherford discovered that the mass of an atom is possessed in its nucleus.
The atom has a small, dense center. Thus, option B is correct.
More about the Ernest Rutherford model link is given below.
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While working on a design for a new roller coaster, the designers noticed that the roller coaster cars did not have enough energy to complete the loop. How should they adjust the track so that the cars can complete the loop?
A. Decrease the height of the hill before the loop because that would decrease the kinetic energy of the cars.
B. Increase the height of the hill before the loop because that would decrease the kinetic energy of the cars.
C. Increase the height of the hill before the loop because that would increase the kinetic energy of the cars.
D. Decrease the height of the hill before the loop because that will increase the kinetic energy of the cars.
Answer: B
Explanation:
Explain why gravity changes from place to place. For example why does gravity change in different planets please help
a). Gravity does change across the surface of the Earth and throughout its atmosphere, due to several effects. First, there is the variation of gravity with latitude that you alluded to: you weigh about 0.5% more at the poles than on the equator. ... Second, gravity does indeed change with altitude.
b). That's because the planets weigh different amounts, and therefore the force of gravity is different from planet to planet. For example, if you weigh 100 pounds on Earth, you would weigh only 38 pounds on Mercury. That's because Mercury weighs less than Earth, and therefore its gravity would pull less on your body.
it is a state of matt3r where molecules are very far apart from each øther a.sølid b.liqüid c.gàs d.plasma Jwksjwkajb
Answer:
gas
Explanation:
Solids are compact together, liquida arent compact but are still close, and gases are free roaming and may be very far apart from eachother.
Answer:
The Answer is Gas.
Explanation:
How should Simon use the theory of relativity to
describe what the astronaut must do in order to hit the
button?
Simon is writing a story about an astronaut whose
spacecraft has been boarded by space pirates. The
astronaut has her lucky penny in her hand behind her
back as the space pirates break into the control room.
She has just locked the controls so that the ship is
accelerating in the direction of the control room's
ceiling. Simon wants the astronaut to use the penny to
hit a button on the control panel to turn off the lights
and escape. The button is located a short distance
behind and below the astronaut's hands.
O The astronaut should toss the penny straight up as
it will appear to fall in an arc because objects in an
accelerating frame of reference behave in the same
way as they would in a gravity field.
O The astronaut should just let the penny go, as the
control panel will accelerate upward and curve
toward the astronaut because there is no gravity
field
O The astronaut should toss the penny horizontally
straight behind her as it will appear to fall in an arc
because objects in an accelerating frame of
reference behave in the same way as they would in
a gravity field.
The astronaut should toss the
Answer:
C
Explanation:
Answer:
c
Explanation:
edge
It can be said that wave length and frequency are _____________ to each other.
A. Indirectly related
B. Directly related
C. Friendly
D. Not at all related
If forces are unbalanced, what is one thing about the object that can change?
A. Location
B. Direction
C. Volume
D. Shape
All moving objects have ____________.
A. Distance
B. Force
C. Time
D. Momentum
Answer:
1. directly related 2. C 3. D
Explanation:
Answer:
1. A
2. B
3. D
Explanation:
im not 100% sure so if any of these are wrong i apologize
How much pressure is exerted on the head of a nail when it is struck with a force of 50 N and area of contact is 0.00002 m2?
Force ,F = 50 N
Area on which force act ,A = 0.00002 m²
To Find:-Pressure is exerted on the head of nail,P
Solution:-We have to calculate the pressure exerted on the head of a nail when force of 50 N is applied on nail and the area of contact with nail is 0.00002 m².
As we know that Pressure is calculated by the force acting per unit area.
P = F/Awhere,
P denote pressure
A denote area on which the force acted
F denote force
Substitute the value we get
⟹ P = 50/0.00002
⟹ P = 50×100000/2
⟹ P = 25×100000
⟹ P = 2500000 Pa
Hence, the pressure exerted on the tip of the nail is 2500000 Pascal or 2500 KiloPascal.
[tex]\boxed{\large{\bold{\textbf{\textsf{{\color{brown}{Answer}}}}}}:)}[/tex]
Given :-pressure is exerted on the head of a nail when it is struck with a force of 50 N and area of contact is 0.00002 m²To Find :-Pressure??Solution :-We know that
[tex]\boxed{\bold{P = \dfrac{F}{A}}}[/tex]
where
P = pressuref = forcea = accelerationAccording to the question,
P = 50/0.00002p=50/2/100000p=50×100000/2P = 2500000 PaAno ang kahulugan ng padamdam?
Ang pandamdam ay nagpapahayag ng matinding damdamin.
hope this helps!
please give me brainliest.
thank you!
Mario golpea el balón con el pie para lanzárselo a Tamara que está situada a 18 m de distancia. El ángulo de salida del balón es de 30° sobre la horizontal y la velocidad a la que sale el balón de la bota de Mario es de 15 mis. ¿A qué altura deberá poner el pie Tamara para hacer el control de la pelota que le envía Mario?
Answer:
y = 0.99 m
Explanation:
This is a projectile launching exercise, let's start by finding the components of the initial velocity, using trigonometry
cos θ = v₀ₓ / v₀
sin θ = v_{oy} / v₀
v₀ₓ = vo cos θ
v_{oy} = I go sin θ
v₀ₓ = 15 cos 30 = 12.99 m / s
v_{oy} = 15 sin 30 = 7.5 m / s
Let's find the time it takes to travel x = 18 m
x = v₀ₓ t
t = x / v₀ₓ
t = 18 / 12.99
t = 1,385 s
at this point it is at a height of
y = v_{oy} - ½ g t²
y = 7.5 1.385 - ½ 9.8 1.385²
y = 0.99 m
therefore the camera must place the foot 99 cm from the ground