Answer:
It's the duration between successive new moons. Also called a lunation or synodic month, it has a mean period of 29.53059 days (29 days 12 hours and 44 minutes).
What controls the flow of electrons in a circuit?
Filiberto va a 90m/s en su carri, de repente se distrae por un par de segundos y su velocdad pasa a 40 m/s ¿cual fue su aceleracion de su movimientonto
Answer:
Filiberto experimenta una deceleración de [tex]2\,\frac{m}{s^{2}}[/tex].
Explanation:
(The problem was written in Spanish. Hence, explanation will be held in Spanish).
Asúmase que Filiberto se distrae por 2 segundos, puesto que un par equivale a dos, y que el vehículo experimenta un aceleración constante. La deceleración experimentada por el vehículo se deriva de la siguiente fórmula:
[tex]a = \frac{v-v_{o}}{\Delta t}[/tex]
[tex]a = \frac{40\,\frac{m}{s}-90\,\frac{m}{s} }{2\,s}[/tex]
[tex]a = -25\,\frac{m}{s^{2}}[/tex]
Filiberto experimenta una deceleración de [tex]2\,\frac{m}{s^{2}}[/tex].
How long will it take you to drive the 256 miles to get to the Mackinac Island Ferry if you average 70 mi/hr? If you leave at 3:00, what time will you get there? *Using speed formula
Answer:
If the speed is 70 mile/hour, the time to drive the 256 miles is:
T = 256/70 = 3.66 hours = 3 hours and 39.6 minutes
If you leave at 3:00, then at 6 hours and 39.6 minutes, you will get there.
Hope this helps!
:)
How can Newton’s Laws be used to explain how and why things move?
Answer:Newton used these laws to explain and explore the motion of physical objects and systems, Newton's three laws are: If an object experiences no net force, its velocity will remain constant. The object is either at rest and the velocity is zero or it moves in a straight line with a constant speed.
Explanation:
You accidentally drop a book down a stairwell. Assuming no air resistance,
how fast will the book be moving after 0.75 seconds?
Answer:
if we drop it and not throw it then
after 0.75 how fast the book is falling is given by its velocity as
v= at
= 9.8 × 0.75
=7.35 m/s
the car is moving on a straight road at a speed of 15m / s. The driver of the car starts overtaking with an acceleration of 2m / s². Determine how fast the car has reached after 6s from the start of overtaking. The speed at uniformly accelerated rectilinear motion with the initial speed is calculated by the formula v = vo + at.
Answer: 27 m/s
Explanation:
vo = 15 m/s
a = 2 m/s^2
t = 6s
v = vo + at
v = 15 + 2(6)
v = 15 + 12
v = 27 m/s
_ Ba+_O2 =_BaO how do I balance this?
Answer:
02-ba=_4
Explanation:
Question 2
A wave with a frequency of 10 Hz and a wavelength of 4 m would have what speed?
m/s
Answer:
speed = 40 m/s
Explanation:
speed = frequency x wavelength
speed = 10 Hz x 4 m
speed = 40 m/s
Where is earth's magnetic north pole located?
Answer: it is located over Ellesmere Island, Canada
Explanation
it is now drifting away from North America and toward Siberia.
Answer:ellesmere island, Canada
What is electricity?
Answer:Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. When electrons are "lost" from an atom, the free movement of these electrons constitutes an electric current. Electricity is a basic part of nature and it is one of our most widely used forms of energy.
Explanation:
Answer:
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others.a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.
Explanation:
Which structure reduces friction between joints?
Answer:
The cartilage is the structure that reduces friction between joints.
Explanation:
Cartilage is the tissue between the bone joints. They are composed of several membranes and cellular groups. One of them called synovial membrane which provides lubricant to the edges of tissue that are touched by the bones. Reducing the friction and absorbing it so the body can move without obstacles.
El tiempo de reacción de un conductor de automóvil es 0,75s. Si el automóvil puede experimentar una desaceleracion de 4m/s^2. Calcular la distancia recorrida hasta detenerse una vez recibida la señal, cuando su velocidad era 10m/s
Answer:
x_total = 20m
Explanation:
This is an exercise in kinematics, we will look for the distance it travels during the reaction time, where there is no braking, and then the distance during the deceleration.
Distance traveled during response time
v = x₁ / t
x₁ = v t
let's calculate
x₁ = 10 0.75
x₁ = 7.5 m
Now we calculate the distance during braking, the final speed is zero (v = 0)
v² = v₀² - 2 a x₂
x₂ = v₀² / 2 a
let's calculate
x₂ = 10² / (2 4)
x₂ = 12.5m
the total stopping distance is
x_total = x₁ + x₂
X_total = 7.5 + 12.5
x_total = 20m
I dont get it. The formula for this is
y[tex]\frac{amount of energy}{time}[/tex]
Answer:
5000 W
Explanation:
you are technically correct, but the question is asking for units in Watts
Recall that Power rating is the energy per unit time
= Energy ÷ Time
= 300,000 ÷ 60
= 5000 j/s
but we are told that the unit is a single letter, and recall that joules/s = watts
hence
5000j/s = 5000 W
edit: typo. Missing a zero from answer
Problem
When a piece of aluminum is
placed in a 25 ml
graduated
cylinder that contains 10.5mL of water, the water level rises to 13.5m. What is the mass of
the aluminum?
what is electrostatic force all about?
Explanation:
the electrostatic force is also known as the coulomb force or coulomb interaction. it's the attractive or repulsive force between two electrically charged object. like charges repel each other while unlike charges attract each other. coulomb's law is used to calculate the strength of the force between two charger .
Thorium ____ has 90 protons and 137 neutrons.
Answer:
Thorium 227 (also known as Radioactinium)
The RMS potential difference of an AC household outlet is 117 V. a) What is the maximum potential difference across a lamp connected to the outlet? b) If the RMS current through the lamp is 5.5 A, what is the lam
Answer:
a. 165.5 V
b. 7.78 A
Explanation:
Here is the complete question
The RMS potential difference of an AC household outlet is 117 V. a) What is the maximum potential difference across a lamp connected to the outlet? b) If the RMS current through the lamp is 5.5 A, what is the maximun current through the lamp.
Solution
a. The maximum potential difference across the lamp V₀ = √2V₁ where V₁ = rms value of potential difference = 117 V
V₀ = √2V₁ = √2 × 117 V = 165.5 V
b. The maximum current through the lamp I₀ = √2I₁ where I₁ = rms value of current = 5.5 A
V₀ = √2V₁ = √2 × 5.5 A = 7.78 A
Why does a Parallel Circuit still continue to function after a switch turns off one bulb but continues to pass through the second bulb? (please be as specific as possible)
Explanation:
In short, when we switch off a branch, the remaining branch still forms a complete circuit with the battery, so electricity still pass through the remaining branch.
Technically speaking, the voltage in each branch is the same, and the resistance of the light bulb remains unchanged (neglect effect of temp.) by V=IR, the current should remain unchanged after switching off the other branch.
You're sitting on a warm granite rock, enjoying the sunshine. You decide it's time to test the water. You take off your shoes and walk across the cool sand to the water. You wade into the water, enough to cover your feet. Brrr! The water is cold. You will have to wear a dry suit when you go diving.
a. Which item - the granite rock, the sand, or the water - has the highest specific heat? Which has the lowest specific heat?
b. Which item requires the least energy to increase its temperature? Explain your answer in terms of this item's specific heat.
c. If the granite rock on which you were sitting has a specific heat of 600 J/(kg°C), how much energy must be added to a 2-kilogram piece of it to increase its temperature from 20°C to 30°C? Show your work, including the equation you need to perform this calculation.
d. What is the second law of thermodynamics? Use this law to describe why your feet got cold, not hot, when you put them in the water.
Answer: seen below
Explanation:
a) Water has the highest specific heat capacity in this case while sand has the lowest specific heat capacity.
b) Sand absorb the least energy for it temperature change (increase or decrease). This means that their temperatures change more quickly due to it low specific heat capacity of 0.290J/g°C) at 25°C)
c) using the formula:
Q = m × cP × (final temperature -initial temperature)
where:
Q = heat
m = is the mass
cP = is the mass heat capacity,
T= is the temperature
Q = 2 kg × 600 J/(kg°C) × (30°C - 20°C)
Q = 12000 J
d) in simpler term, The second law of thermodynamics states that when energy changes from one form to another form, entropy The second law of thermodynamics says that when energy changes from one form to another form, or matter moves freely, entropy (which is a measure of the amount of energy in a physical system that cannot be used to do work) in a closed system increases. This is why your feet gets cold when you put them in the water.
If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?
Answer:
Newton's second law
Explanation:
The greater the mass of an object, the less it will accelerate when a given force is applied.
A concave mirror has a radius of curvature of 0.60 meter.
When an object is placed 0.40 meter from the reflecting
surface, the image distance will be
0.10 m
0.20 m
0.83 m
o 1.2 m
A wave that can travel with or without a medium is called a(n)
A.surface wave
B.mechanical wave
C.electromagnetic
wave
D.all waves can travel
in any way
Answer:
C
Explanation:
Answer A: A surface wave is a wave that travels along the surface of a medium.
Answer B, C: Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission.
Answer D: The sentence in the answer D does not fit to the blank in the definition ( of the question )
......
Hope this answer can help you.
Your home energy bill is given in what kind of units?
Answer:
Home energy bill/electricity bill is measured in Kilowatt hours.
Water bill is measured in gallons & gas units is measured in BTUs.
hope it helps!
A point charge (5.0 pC) is located at the center of a spherical surface (radius = 2.0 cm), and a charge of 3.0 pC is spread uniformly upon this surface. Determine the magnitude of the electric field 1.0 cm from the point charge.
Answer:
E = 0.45 kN/C
Explanation:
From; the question, we can opine that the electric field inside the hollow sphere as a result of the charge at the surface is zero.
Using the equation:
[tex]\mathbf{E = kq/r^2}[/tex] to determine the magnitude of the electric field with the radius 1.0 cm from the point charge.
where ;
constant k = [tex]8.98*10^9[/tex]
point charge q = 5.0 pC = 5.0 × 10⁻¹²; we have :
[tex]\mathbf{E = kq/r^2}[/tex]
[tex]\mathbf{E =\dfrac{8.98*10^9*5*10^{-12}}{1.0^2}}[/tex]
E = 0.45 kN/C
Caleb conduce su motocicleta por con una velocidad constante de 38 km/h y luego por otras 2 horas con una velocidad constante de 20 km/h. ¿Cuál es su velocidad media para el viaje total?
Answer:
No Lo se :v esque estoy enferma del
Culovirus :v ༎ຶ‿༎ຶcalculate the pressure exerted by a mercury column of 76 cm high at its bottom.Given that density of mercury is 13600kg/m^3 and g=9.8
Answer:
Explanation:I don't say you have to mark my ans as brainliest but if you think it has really helped you plz don't forget to thank me ...
what should police remove to study the physical conditions of a gun homicide case?
the victims clothes
any valuables from the victim (wallet, jewelry)
the victims cell phone
the victims dentures, if they wear any
Answer:
Explanation:
the victims cell phone
Calculate the power in the 1 ohm resistor. What do I do?
Answer:
p1 = 9 watt
Explanation:
first find the current :
i = V/r1 +r2 = 12 / (1+3) = 3 A
Next, find the voltage in the 1 ohm resistor:
V1 = r1 * i = 1 * 3 = 3 volt
Now calculate power in the 1 ohm resistor :
P1 = i * V1 = 3 * 3 = 9 watt
Calculate the efficiency of an engine if the work input is 300. J and the work output is 100. J
Answer:
33.33%
Explanation:
take efficiency =power output/power input multiply by 100%
Dados los vectores a ⃗=6m y b ⃗=8m encontrar su resultante cuando Forman ángulo recto de 90° Son paralelos de igual sentido Son paralelos de sentido contrario
Answer:
I will answer in English, and i will give some representation for each case:
We have a = 6m and b = 8m.
If they are perpendicular, we have that:
a = (6m, 0) b = (0, 8m)
The adition is:
a + b = (6m, 8m).
If they are parallel, we have;
a = (6m, 0)
b = (8m, 0)
a + b = (6m + 8m, 0) = (14m, 0 )
If they are parallel but opposite:
a = (6m, 0)
b = (-8m, 0)
a + b = (6m - 8m,0) = (-2m, 0)