How to conclude a refractive index of liquid using concave mirror

The moment of inertia of this object around the x-axis can be calculated using the parallel axis theorem.

Given the coordinate system below, the moment of inertia about the x-axis is given below:

\(I_x = \frac{1}{2}[(3m)r^2 + (3m)(3r^2)] = \frac{3}{2}mr^2\)

where \(m\) is the mass of a sphere and \(r\) is the distance from the origin to the spheres. The three brass spheres are 60° apart in the x-y plane and the three aluminum spheres are 90° apart in the x-z plane. The moment of inertia about an axis in the object is a measure of its resistance to rotation about that axis, given that torque is being applied to the object. It is given by the formula:

\(I = \int r^2dm\)

where \(r\) is the perpendicular distance of a small mass element \(dm\) from the axis of rotation. Since the object is symmetric about the x-axis, we can compute the moment of inertia by summing up the contributions of the six spheres by assuming them to be point masses. Each of the spheres is at the same distance from the origin so we can compute the moment of inertia about the origin and then use the parallel axis theorem to shift it to the x-axis.

Learn more about moment of inertia here:

https://brainly.com/question/14460640

#SPJ11

Answer:

a skydiver falling at terminal (constant) velocity

Explanation:

Answer:

The change in momentum of the car is 16380.8 kg.m/s

Explanation:

Given;

mass of the car, m = 1600 kg

time of motion, t = 4.20s

force of friction on the car, F = 3900 N

final velocity of the car after the brakes were applied, v = 0

The initial velocity of the car during the motion is calculated as;

\(F = ma = \frac{mu}{t} \\\\mu = Ft\\\\u = \frac{Ft}{m} \\\\u = \frac{3900\times 4.2}{1600} \\\\u = 10.238 \ m/s\)

The change in momentum of the car is calculated as;

ΔP = mu

ΔP = 1600 x 10.238

ΔP = 16380.8 kg.m/s

Answer:

i believe it is dna

Explanation:

if i remember correctly if the dna tells the cell what to do and how to do it

As the charge, ( Q ) is equal and constant, the voltage drop across the capacitor is determined by the value of the capacitor only as V = Q ÷ C.

What is charge?

Charged material experiences a force when it is exposed to an electromagnetic field due to the physical characteristic of electric charge. You might have a positive or negative electric charge. Unlike charges attract one another while like charges repel one another.

As the charge, ( Q ) is equal and constant, the voltage drop across the capacitor is determined by the value of the capacitor only as V = Q ÷ C. A small capacitance value will result in a larger voltage while a large value of capacitance will result in a smaller voltage drop.

While the voltage drop across a resistor is proportional to the current and there is a current at the beginning, the voltage drop across a capacitor is related to its charge and is uncharged at the beginning. However, when charge on the capacitor begins to accumulate, some voltage is now lost across the capacitor.

To learn more about charge visit:https://brainly.com/question/19886264

#SPJ4

Answer:

F. 0J

Explanation:

At the objects highest point in the trajectory the KE = 0 since this trajectory is completely vertical with no x-component but its PE would be greatest at this point.

KE = (1/2)mv²

KE = 0; because velocity equals 0

PE = m*g*h

PE = 1kg*(9.81m/s^2)*10m

PE = 98.1J

When the acceleration is 0, the time t is 1/3 and 2 seconds. The position and velocity at these two times are 6.24 and 4.50, and 63 and 39, respectively.

The motion of a particle is a critical aspect of physics that involves studying the movement of an object over a specific period of time. The motion of a particle is described by its position and velocity at a given time. In this case, the motion of a particle is defined by the equation \(x = 6t^4 - 2t^3 - 12t^2 + 3t + 3\), where x is the position of the particle and t is the time expressed in meters and seconds, respectively. To determine the time, position, and velocity of the particle when acceleration is 0, we need to perform some calculations based on the equation given.

First, let's find the velocity of the particle at a given time t. The velocity of a particle is the derivative of its position, which means that we need to find the first derivative of the equation \(x = 6t^4 - 2t^3 - 12t^2 + 3t + 3\). The derivative of the equation is\(v = 24t^3 - 6t^2 - 24t + 3\). This equation represents the velocity of the particle at any time t.

Next, let's find the acceleration of the particle at a given time t. The acceleration of a particle is the derivative of its velocity, which means that we need to find the first derivative of the equation \(v = 24t^3 - 6t^2 - 24t + 3\). The derivative of the equation is \(a = 72t^2 - 12t - 24\). This equation represents the acceleration of the particle at any time t.

Now, since we are looking for the time, position, and velocity when acceleration is 0, we can set the equation \(a = 72t^2 - 12t - 24\) equal to 0 and solve for t. By using the quadratic formula, we get two values for t, t = 1/3 and t = 2. These two values represent the time when the acceleration is 0.

To find the position and velocity at these two times, we can plug in t = 1/3 and t = 2 into the equation x = \(6t^4 - 2t^3 - 12t^2 + 3t + 3\) and\(v = 24t^3 - 6t^2 - 24t + 3\), respectively. When\(t = 1/3\), the position \(x = 6 * (1/3)^4 - 2 * (1/3)^3 - 12 * (1/3)^2 + 3 * (1/3) + 3 = 6.24\), and the velocity \(v = 24 * (1/3)^3 - 6 * (1/3)^2 - 24 * (1/3) + 3 = 4.50\). When t = 2, the position \(x = 6 * 2^4 - 2 * 2^3 - 12 * 2^2 + 3 * 2 + 3 = 63\), and the velocity \(v = 24 * 2^3 - 6 * 2^2 - 24 * 2 + 3 = 39\).

To learn more about acceleration here:

https://brainly.com/question/460763#

#SPJ11

9514 1404 393

Answer:

  12.  x = 11; sides are 29

  13.  x = 5; sides are 25

Explanation:

12. The marked sides are equal length, so ...

  3x -4 = 2x +7

  x = 11 . . . . . . . . add 4-2x

  2x+7 = 2(11)+7 = 29 . . . side lengths

__

13. The marked sides are equal length, so ...

  6x -5 = 5x

  x = 5 . . . . . . . add 5-5x

  5x = 5(5) = 25 . . . side lengths

The magnitude of the momentum of the two dice system is 0.003 kg m/s.

Momentum is a measure of an object's motion, defined as the product of its mass and velocity. It represents the amount of motion an object has, and the direction of that motion. In physics, momentum is a conserved quantity, meaning that the total momentum of a system remains constant unless acted upon by an external force. This is reffered to as the law of conservation of momentum. The greater an object's mass and velocity, the greater its momentum.

The magnitude of the momentum of an object can be calculated by multiplying its mass by its velocity.

For the blue die:

mass = 6.5 g = 0.0065 kg (converted from grams to kilograms)

velocity = 12 m/s

momentum = 0.0065 kg × 12 m/s = 0.078 kg m/s

For the green die:

mass = 7.5 g = 0.0075 kg (converted from grams to kilograms)

velocity = -10 m/s (opposite direction)

momentum = 0.0075 kg × -10 m/s = -0.075 kg m/s

The total momentum of the two dice system can be found by adding the momenta of each individual die:

total momentum = 0.078 kg m/s + (-0.075 kg m/s) = 0.003 kg m/s

So, the magnitude of the momentum of the two dice system is 0.003 kg m/s.

To know more about external force, visit:

https://brainly.com/question/16186958

#SPJ1

Answer: 3 g*m/s

Explanation: another person explained it, but gave the wrong answer. i wish i knew what they did wrong.

The  forces that are important with respect to air motions within the boundary layer is option (d) horizontal PGF, Coriolis, and frictional forces.

The boundary layer is the thin layer of fluid near a surface where the effects of viscosity are significant. Within the boundary layer, there are air motions that are affected by several forces. The three main forces that are in balance with respect to air motions within the boundary layer are the horizontal pressure gradient force (PGF), the Coriolis force, and the frictional force.

The horizontal PGF is responsible for the overall movement of the air, while the Coriolis force is responsible for the deflection of air currents due to the Earth's rotation. The frictional force arises due to the interaction between the moving air and the surface, which slows down the air flow close to the surface.

These three forces act in balance within the boundary layer to determine the air motions and their characteristics, such as wind speed and direction.

Therefore, the correct option is (d) horizontal PGF, Coriolis, and frictional forces.

Learn more about boundary layer here

brainly.com/question/12977422

#SPJ4

The given question is incomplete, the complete question is:

Which forces are in balance with respect to air motions within the boundary layer?

a. vertical PGF and gravity

b. horizontal PGF and frictional force

c. horizontal PGF and coriolis

d. horizontal PGF, coriolis, and frictional forces

A diunsaturated acyl chain of a lipid has two double bonds, which means that there are two fewer hydrogen atoms than a saturated acyl chain of the same length.

So, a saturated acyl chain possesses 2 more total hydrogen atoms than a diunsaturated acyl chain. For example, an 18-carbon saturated acyl chain has 22 hydrogen atoms, while an 18-carbon diunsaturated acyl chain has 20 hydrogen atoms.

The reason for this is that the double bonds in unsaturated acyl chains prevent the hydrogen atoms from bonding to the carbon atoms. This is because the double bonds have a partial double bond character, which means that the electrons in the bond are shared between the two carbon atoms. This makes the carbon atoms less electronegative, so they are not as attracted to the hydrogen atoms.

Find out more on acyl chain here: https://brainly.com/question/14747806

#SPJ4

The series impedance per phase of the given transmission line is approximately 7,600 Ω (resistance) + j66.315 Ω (reactance).

The series impedance per phase of the given transmission line, we can calculate the total impedance using the per-phase resistance and inductance.

The total impedance (Z) per phase of the transmission line can be calculated using the following formula:

Z = R + jX

where R is the resistance and X is the reactance.

Length of the line (L) = 50 km

Resistance per phase (R) = 0.152 Ω/km

Inductance per phase (L) = 1.3263 mH/km

First, we need to convert the length and inductance units to consistent units:

Length in meters (L) = 50 km × 1000 m/km = 50,000 m

Inductance in ohms (X) = (1.3263 mH/km) × (50,000 m/km) × (1 H/1000 mH) = 66.315 Ω

Therefore, the series impedance per phase can be calculated as:

Z = 0.152 Ω/km × 50,000 m + j(66.315 Ω)

Z = 7,600 Ω + j(66.315 Ω)

Hence, the series impedance per phase of the transmission line is 7,600 Ω + j(66.315 Ω).

To know more about impedance,

https://brainly.com/question/30887212#

#SPJ11

\(\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}\)

Actually Welcome to the Concept of the Work And Energy.

So we here use the formula as,

W= Mgh

so after solving we get as,

W = 0.686 Joules

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.

Answer:

Mechanical advantage = 20

Explanation:

Given:

Output force = 8,000 N

Input force = 400 N

Find:

Mechanical advantage

Computation:

Mechanical advantage = Output force / Input force

Mechanical advantage = 8,000 / 400

Mechanical advantage = 20

Answer:

Good one

Explanation:

Hydrogen has the highest thermal conductivity of any gas.

Answer:

The probability that she is correct on only two questions is 0.246

Explanation:

The probability of getting an answer correct = 1/5

The probability of getting only two questions correctly

By binomial trials, we have;

P(X = K) = \(\dbinom{n}{k}\times p^{k}\times \left (1 - p \right )^{n - k}\)

P(X = 2) = \(\dbinom{6}{2}\times \left (\dfrac{1}{5} \right )^{2}\times \left (1 - \dfrac{1}{5} \right )^{6 - 2}\)

= 15×256/15625 = 768/3125 = 0.246

Therefore, the probability that she is correct on only two questions = 0.246.

Answer:

Kenetic

Explanation:

Potentiak is at the start

kenetic is stores energy being released

Answer:

Kinetic

Explanation:

Hope this helps you

The magnetic field tilts of Earth and Uranus are considered to be the most unusual when compared to other celestial bodies in our solar system. Earth's magnetic field tilts at an angle of approximately 11 degrees with respect to its rotational axis, which is quite significant. The magnetic field is generated by the motion of molten iron in the Earth's outer core, which creates a magnetic dipole that is tilted with respect to the planet's rotation axis.

Uranus, on the other hand, has an extremely tilted magnetic field that is almost perpendicular to its rotational axis. This is believed to be due to the planet's unique orientation, as Uranus rotates on its side compared to the other planets in our solar system. The magnetic field is thought to be generated by a layer of electrically conductive fluids deep within the planet's interior, which may be influenced by the unusual orientation of Uranus.

Overall, the magnetic field tilts of Earth and Uranus are intriguing and unique in their own ways, providing valuable insights into the magnetic processes that occur within these celestial bodies.

to know more about planet's rotation axis. click this link

brainly.com/question/31913445

#SPJ11

The horizontal distance travelled by the football is 3.1 m.

The angle of projection of the football is calculated as follows;

tan ( θ ) = Vy / Vx

where;

tan ( θ ) = 5 / 3

tan ( θ ) = 1.667

θ = arc tan (1.667)

θ = 59⁰

The resultant velocity of the ball is calculated as follows;

v = √ (Vx² + Vy²)

v = √ (3² + 5²)

v = 5.83 m/s

The horizontal distance travelled by the football is calculated as follows;

x = v² sin(2θ) /g

where;

x = [ (5.83)² sin(2 x 59) /9.8 ]

x = 3.1 m

Learn more about horizontal distance here: https://brainly.com/question/24784992

#SPJ1

Answer:

I think 100V but I'm not sure.

Thirty-five coulombs of charge flow through a wire in 2 minutes accounts for around 0.29167 amperes in the current wire.

Given:

Electric charge= 30 coulomb

Time for which charge flows through a wire = 2 minutes = 120 seconds

To find:

Electric current flowing in a wire=?

To calculate electric current understand the concept:

An electric current is the flow of charged particles through the conducting material.

The Standard International unit of electric current is Ampere or amp or A.

One ampere is defined as the flow of one-coulomb electric charge in one second.

It can be calculated as follows:

Electric current (Ampere) = Electric charge(Coulomb) ÷ time(seconds)

Electric current (A) = 35 C ÷ 120 s

Electric current = 0.29167 amperes

Hence, the electric current is flowing at the rate of 0.29167C/s or 0.29167 Ampere through a wire.

Learn more about electric current here,

https://brainly.com/question/2264542

# SPJ4

The percent uncertainty in the resistivity measurement due to the uncertainty in diameter is 2.5%.

To recalculate the precision in the resistivity measurement with the given information, we can use the formula for the uncertainty in resistivity:

δρ/ρ = 2δd/d

where δd is the uncertainty in the diameter measurement and d is the diameter of the wire. Plugging in the values given, we get:

δρ/ρ = 2(0.005mm)/(0.40mm)

Simplifying, we get:

δρ/ρ = 0.025

So the percent uncertainty in the resistivity measurement due to the uncertainty in diameter is 2.5%.

Whether or not it was reasonable to ignore this uncertainty in the diameter measurement depends on the context and requirements of the experiment. If the purpose of the experiment was to obtain a general understanding of the resistivity of the wire, then it may have been reasonable to ignore the uncertainty in diameter, as it is relatively small compared to other sources of uncertainty. However, if the experiment required a high level of precision or accuracy, then it would be necessary to take into account the uncertainty in the diameter measurement.

To know more about measurement click here:

https://brainly.com/question/2107310

#SPJ11

Yes, the canoeist is likely to be able to reach the paddle, the canoeist realizes that the canoe's paddle is still on the dock, and so carefully crawls back to the front of the 3.

Displacement is a vector quantity. This indicates that it has both a direction and a magnitude and that it is visually represented as an arrow that points from the starting position to the ending position.

As given in the problem a 56 kg canoeist sits at rest at the back of a 23kg canoe. the canoe is at rest in the still water of a lake with its front end about 50 cm from the end of the dock.

the canoeist realizes that the canoe's paddle is still on the dock, and so carefully crawls back to the front of the 3.

Thus, paddles will most likely be within the canoeist's grasp.

Learn more about displacement here

https://brainly.com/question/10919017

#SPJ1

Answer:

F = G M1 M2 / R^2

R^2 = G M1 M2 / F

R^2 = 6.67 E-11 * 6.78 E26 * 5.42 E20 / 8.6 E10

R^2 = 6.67 * 6.78 * 5.42 / 8.6 * E25

R^2 = 28.5 * E25 = 2.85 * E26

R = 1.69 E13 m

Answer:

Electromagnetic waves can bring energy into a framework by the power of their electric and magnetic fields. Electric fields contribute to the movement of electromagnetic energy when they exert forces and move charges. Magnetic fields partake in the movement of energy in electromagnetic waves through doing the same. The electric and magnetic fields that make up an electromagnetic wave are perpendicular to each other. Both fields are also perpendicular to the direction that the wave travels. This explains why electromagnetic waves are transversal waves.