Answer:
The answer is 15
i used a calculator
Explanation:
Answer:
15
Explanation:
15*2=30
30/2=15
hope this helps
bestfriend
6
DO
Which are examples of a medium?
water and air
amplitude and wavelength
crests and troughs
compressions and rarefactions
Answer:
water and air
Explanation:
The examples of medium from this problem is water and air.
A medium is an agency or a means of propagating energy, waves or even facilitating a chemical reaction.
Fluids are very good medium in chemistry for chemical reactions. The two most common media used are air and water.
In physics, a vacuum is an empty space that has been evacuated. It also serves as a medium to study some physical phenomenon.
What do u know about how the earths land is formed hint it’s made of rocks
Answer:
it's made of land, rocks, water and many more
Explanation:
if you think about it, mountains are just giant rocks. and the ocean is water and land is... well land
Answer:
Well all Ik is that when the earth was formed it was a big hot rock then the water came in and settled it and the animals kinda became land creatures the yea
Explanation:
Un atleta de helterofilia necesita levantar una barra de pesas, si necesita aplicar una fuerza para levantarla ¿cuales son los variables que intervienen para poder hacerlo?
Answer:
Se necesita la información de las siguientes variables:
(i) Fuerza normal entre los pies y la superficie.
(ii) Masa del atleta de halterofilia.
(iii) Masa de la barra de pesas.
(iv) Aceleración gravitacional.
(v) Fuerza normal entre la barra de pesas y la superficie.
(vi) Aceleración neta del centro de gravedad del sistema.
Explanation:
Sea el conjunto del atleta de halterofilia y la barra de pesas el sistema físico a estudiar. El fenómeno de levantamiento puede modelarse como traslación pura. Por las leyes de Newton tenemos que se necesita las siguientes variables para determinar la magnitud de la fuerza para levantarla (fuerza normal entre la mano y la barra de pesas) se requiere las siguientes variables:
(i) Fuerza normal entre los pies y la superficie.
(ii) Masa del atleta de halterofilia.
(iii) Masa de la barra de pesas.
(iv) Aceleración gravitacional.
(v) Fuerza normal entre la barra de pesas y la superficie.
(vi) Aceleración neta del centro de gravedad del sistema.
The factors that affect gravitational pull on an object are __________________________ and __________________________
Answer:
I am not sure about this question sry but u can try asking a tutor u don't need to use any points
why does an air filled balloon get brust when it reaches its great height
Answer:
because there is external pressure is less in the height.
hope it helps.
In regards to mechanical energy, is energy being conserved ?
If only internal forces are doing work (no work done by external forces), then there is no change in the total amount of mechanical energy. The total mechanical energy is said to be conserved. ... In these situations, the sum of the kinetic and potential energy is everywhere the same.
How did potential energy get stored in the magnet/iron rod system?
Answer:
The amount of potential energy stored in the magnetic field depends on both the strength of the magnet and the distance that another magnet or magnetic object is from it. ... All objects have a gravitational force, no matter how small, but only some objects such as iron objects can have a magnetic force.
Explanation:
The potential energy stored in the magnet/iron rod system is on the account of distance of each entities and the strength of magnets.
The given problem is based on the concept of potential energy stored in magnetic rod system.
The potential energy stored in the magnetic rod is known as magnetic potential energy, which is as a result of the exertion of magnetic force on the rod.The amount of potential energy stored in the magnetic field depends on both the strength of the magnet and the distance that another magnet or magnetic object is from it. All objects have a gravitational force, no matter how small, but only some objects such as iron objects can have a magnetic force.Thus, we can conclude that the potential energy stored in the magnet/iron rod system is on the account of distance of each entities and the strength of magnets.
Learn more about the magnetic potential energy here:
https://brainly.com/question/21326707
As shown in the figure above, a 50 kg box is dragged across the floor with a pulling force (Fp) of 200 N which acts at an angle of 30 degrees above the horizontal. The coefficient of kinetic friction is 0.25. What is the acceleration of the box? (Use g = 9.8 m/s2. Hint: the normal force is not equal to the weight)
Answer:
The acceleration of the box is 2.05 m/s²
Explanation:
The given parameters of the motion of the box are;
The mass of the box, m = 50 kg
The pulling force, [tex]F_p[/tex] acting on the box = 200 N
The angle at which the force acts, θ = 30° above the horizontal
The coefficient of kinetic friction, [tex]\mu_k[/tex] = 0.25
The normal reaction from the box resting on a flat surface, N = The weight of the box, W - The vertical component of the pulling force, [tex]F_{py}[/tex]
N = W - [tex]F_{py}[/tex] = m·g - [tex]F_p[/tex] × sin(θ)
Where;
g = The acceleration due to gravity = 9.8 m/s²
∴ N = W - [tex]F_{py}[/tex] = m·g - [tex]F_p[/tex] × sin(θ) = 50 kg × 9.8 m/s² - 200 N × sin(30°)
∴ N = 490 N - 200 N × 0.5 = 390 N
The normal reaction, N = 390 N
The force of friction, [tex]F_f[/tex] = The coefficient of kinetic friction, [tex]\mu_k[/tex] × The normal reaction, N
∴ [tex]F_f[/tex] = [tex]\mu_k[/tex] × N = 0.25 × 390 N = 97.5 N
The net force, [tex]F_{NET}[/tex], acting on the block = The pulling force, [tex]F_p[/tex] - The friction force, [tex]F_f[/tex]
∴ [tex]F_{NET}[/tex] = [tex]F_p[/tex] - [tex]F_f[/tex] = 200 N - 97.5 N = 102.5 N
[tex]F_{NET}[/tex] = 102.5 N
According to Newton's second law of motion on the net force acting on an object, we have;
[tex]F_{NET}[/tex] = m × a
Where;
a = The acceleration of the box
∴ a = [tex]F_{NET}[/tex]/m = 102.5 N/(50 kg) = 2.05 m/s²
The acceleration of the box = a = 2.05 m/s².
which change will occur in the wire of an electrical circuit as working properly
a. the wires will lose some of its mass
b. the wire will become warmer
C. the wire will form an electrical field
d. the wire will develop a new crystal structure
Answer:
b. the wire will become warmer
Explanation:
The change that will occur in the wire of an electrical circuit working properly is that the wire will become warmer.
The reason for this is that some of the electrical energy will be converted to heat or thermal energy.
As the electrons through the mobile charge carriers moves in the wire, kinetic energy increases. The source of this is from the potential difference originating from the source of the current within the circuit. Some of the energy is then converted to heat energy .This one of the source of loss in energy within the circuit.What is the mass of basswood wing with these dimensions: 26.9 cm x 5.5 cm x 0.15 cm?
The mass of the basswood wing with the given dimension is 710.14 g. Basswood is a low-density, light wood.
What is basswood?Basswood is a low-density, light wood that is mainly used for artistic work such as hand carving and creating musical instruments.
The mass can be calculated by the formula,
[tex]m = v \times d[/tex]
Where,
[tex]m[/tex]- mass
[tex]v[/tex] - volume = 26.9 cm x 5.5 cm x 0.15 cm = 22.192 ml
[tex]d[/tex] - density = 32 g/cm3
Put the values in the formula,
[tex]m[/tex] = 22.192 x 32
[tex]m[/tex] = 710.14 g
Therefore, the mass of the basswood wing with the given dimension is 710.14 g.
Learn more about mass:
https://brainly.com/question/26255895
if an ocean has a wavelength of 2 m and a frequency of 1 wave/s then it's speed is ___ m/s.
A fly travels along the x-axis. His starting point is x = 16 m and his ending point 15x = - 25 m. His flight lasts 4.0 seconds How far has he flown, what is his displacement , what is his speed and what is his velocity?
Explanation:
Starting position at x = 16m
Ending position at x = -25m
Time of flight = 4s
Unknown:
Distance flown = ?
Displacement = ?
Speed = ?
Velocity = ?
Solution:
To find the distance flown, we should understand that the body is moving on the x - plane;
So distance = 16 + 25 = 41m
Displacement is 41m to the left or -x axis
Speed is the distance divided by the time taken;
Speed = [tex]\frac{distance}{time}[/tex] = [tex]\frac{41}{4}[/tex] = 10.25m/s
Velocity is 10.25m/s along -x axis
Heat energy is produced when molecules move. True False
Answer:
true
Explanation:
A 35 N force makes a 10 degree angle with the positive x-axis. What is the magnitude of the vertical component of the force?
Answer:
6.07 N
Explanation:
Given that,
Force, F = 35 N
It makes 10 degree angle with the positive x-axis.
We need to find the magnitude of the vertical component of the force. It can be given by :
[tex]F_y=F\sin\theta\\\\=35\times \sin(10)\\\\=6.07\ N[/tex]
So, the magnitude of the vertical component of the force is 6.07 N.
Answer:
Vertical component of force is equal to [tex]6.067[/tex] N
Explanation:
The magnitude of the vertical component on any force when α is the angle between the direction of force and the X -axis is
[tex]F_y = F * Sin\alpha[/tex]
Substituting the given values in above equation, we get -
[tex]F_y = 35 * Sin 10\\F_Y = 35 * 0.1736\\F_Y = 6.067[/tex]
Vertical component of force is equal to [tex]6.067[/tex] N
HELP PLS
use newton's first law to explain why it is easier to turn a truck when it is empty than when it is carrying a heavy load
Answer:
When the Truck moves in a straight line, it is in the State of Motion only along the straight line. However, When the Truck turns and changes it's direction, due to it's Inertia Of Direction, it resists any change in it's direction along the straight line, it had been travelling before. As we know that, Inertia is directly proportional to the mass of the object. When the Truck is empty, there is no load on it's carriers. Hence, As the Net Mass is the mass of the Truck itself, the Inertia Of Direction too would be less.On the other hand, when the Truck transports additional loads on it's carriers, it's Total Mass now increases due to the additional mass of the load as well as pre-existing mass of the Truck itself. As the mass is greater in this case, the Inertia Of Direction is greater too.Due to an Higher Inertia in the Second Case, the Truck finds it difficult to turn itself to the desired direction.I just wanna know if this answer is correct. Thank you
Which of these is a result of gravitational lensing?
O the formation of multiple images of the same object
O the bending of light in an accelerating reference frame
O the curvature of space-time
Answer:
Answer is the formation of multiple images of the same object .
Explanation:
I hope it's helpful!
Your brother's mass is 40.0 kg, and he has a 1.30 kg skateboard. What is the combined momentum of your brother
and his skateboard if they are going 8.50 m/s?
Answer:
351.05 kg * m/s
Explanation:
Combined momentum is denoted with this formula:
p = m₁v₁ + m₂v₂In other words, the combined momentum of two masses is the sum of their masses multiplied by their velocity.
Let m₁v₁ represent the brother's mass and velocity, and let m₂v₂ represent the skateboard's velocity.
List out the known variables:
m₁ = 40.0 kgv₁ = 8.50 m/sm₂ = 1.30 kgv₂ = 8.50 m/sSubstitute the known values into the equation.
p = (40.0)(8.50) + (1.30)(8.50) p = 340 + 11.05 p = 351.05The combined momentum of the brother and his skateboard is 351.05 kg * m/s.
A bicyclist moves at a constant speed of 6 m/s. How long it will take for the point bicyclist to move 36 m?
Answer:
6 seconds
Explanation:
make me brainliest
Answer:
Somuchcringe answered correctly you mark him brainliest
Explanation:
the rock of 10 kg is falling near the Earth's surface.assume that g =10N/kg and the is no air resistance. what is the acceleration of the rock
Answer:
kya faltu sawal h repetitive g=10N/kg
difference between kinetic energy and potential energy(please i need answer in 2minutes
Answer:
Energy stored in an object due to its position is Potential Energy. Energy that a moving object has due to its motion is Kinetic Energy.
Explanation:
Welcome.
3 m/s
4 m
Which of the following is the frequency of the wave?
a) 0.75 Hz
b) 1.33 Hz
C) 1.5 Hz
d) 6.0 Hz
Answer:
0.75Hz
Explanation:
Given parameters:
Speed of the wave = 3m/s
Wavelength = 4m
Unknown:
Frequency of the wave = ?
Solution:
The speed of a wave is given by the expression below:
Speed = frequency x wavelength
Frequency = [tex]\frac{Speed }{Wavelength}[/tex] = [tex]\frac{3}{4}[/tex] = 0.75Hz
What is the momentum of a 40,000,000kg tanker traveling at 5m/s?
Momentum
Formula:
Momentum
(kg m/s)
Oy
im
Mass
(kg)
Velocity
(m/s)
m
х
V
Momentum (kg m/s) = Mass (kg) * Velocity (m/s)
Answer:
You've got the formula so when the multiplication is done (40,000,000×5)=200,000,000kg m/s
can some one help me to answer it.
Answer:
force gravitational attraction =18.69×10^-14
hope it helps.
Okay I need help please 40 points just give me 3 examples no need to due 10 just 3!!! Please help
Answer:
Do you have a list of all the energies?
Bomb exploding would use chemical reaction (ammonium nitrate for ex), then thermal energy from heat generated, then kinetic energy from the blast overpressure/schockwave.
A 1250kg car driving 1200km to Florida in 19.5 hours gets a speeding ticket for traveling 120km/h in Turbeville South Carolina. What is the cars average speed during the trip?
Answer:
v = 61.54 km/h
Explanation:
The average speed of the car can be found by using the total distance covered by the car and the total time taken for that distance to be traveled. Therefore, the average speed of the car can be found by the following formula:
[tex]v = \frac{d}{t}\\[/tex]
where,
v = average speed during the trip = ?
d = total distance driven by the car = 1200 km
t = time taken for the traveling = 19.5 hr
Therefore,
[tex]v = \frac{1200\ km}{19.5\ hr}\\\\[/tex]
v = 61.54 km/h
The Bohr model below represents which answer Choice
A) Na^1-
B) Na the neutral atom
C) Na^1+
Answer:
Na⁺
Explanation:
In the given atom:
Number of protons = 11
Number of neutrons = 12
So, the number of electrons = 10
The number of protons within an atom is used to determine the kind of atom we have been given.
Since the number of protons is the same as the atomic number, here the atomic number is 11 and this is Sodium .
In this sodium atom, the number of protons is more than the number of electrons;
Charge = number of protons - number of electrons = 11 - 10 = +1
So, we have a Na⁺
Tonya and Mario are asked to use a pan balance to find the mass of the same rock. Tonya finds the rock's mass to be 680 grams. Mario finds the rock's mass to be 672 grams. Which is the best explanation for the difference in their measurements?
A. Either Mario or Tonya measured the mass of the rock incorrectly on the pan balance.
B. The rock was cold when Tonya measured its mass and hot when Mario measured in mass.
C. The rock changed in size between the time Tonya measured it and the time Mario measured it.
D. The rock broke before Mario measured it. So the mass of the two pieces together was less than when Tonya measured it.
Answer:
A or D i put a
Explanation:
Answer: Its Either Mario or Tonya measured the mass of the rock incorrectly on the pan balance.
Explanation: ...
Help! will give brainliest!
Answer:
I would say increasing the balls kinetic energy
Explanation:
Because she is moving the ball and increasing kinetic energy
PLEASE HELP I DONT GET HOW TO ANSWER...
• If we did use zero-friction machines for these purposes, how would our everyday lives change?
Answer:
the world would just slide forever
Explanation:
A frictional force exists when two objects come in contact with each other. It opposes motion, meaning if something is sliding on the floor, friction is the force that makes it eventually come to a stop. In a world without friction, the object would continue to slide forever, if not acted on by another force.
