assume that an mx missile goes from rest to a suborbital velocity of 3.50 km/s in 60.0 s (the actual speed and time are classified). what is its average acceleration in m/s2? 58.33 m/s2 what is its average acceleration in multiples of g? g

Answer:

c. aluminum foil

Explanation:

Reflection is defined as the returning of light or sound wave from a surface at certain angles. For example: our image in the mirror.

To reflect light, we required a surface with one side completely polished, smooth and pure form so that it reflects maximum light rather than absorbing the light. Aluminum foil will reflect the most light from the given options. Aluminum foil has the purity and surface smoothness that makes it able to reflect maximum light. Any change in the smoothness of the aluminum foil, the reflectivity of light will decrease.

Other option a clear window, a green plastic bottle and a red lunch box will absorb more light rather than refect it.

Hence, the correct option is "c. aluminum foil ".

Answer: The average velocity of the car is 37.27 km/h.

Explanation:

Answer:

Solution

100 km into m/s= 55.4 m/s

59 km into m/s = 13.8m/s

Average velocity= v+u/2

=69.2/2

= 34.6

I think it's average velocity is 35.6

I think it will help

The question is fishing for "balanced force".

But the description in the question is terrible.

Answer:

Nearly half of California’s potential teachers struggle to pass a gauntlet of standardized tests required for them to earn a credential, making it more difficult for the state to put a dent in a persistent teacher shortage.

False, In contrast to diffuse reflection, specular reflection violates the laws of reflection. Normal reflections are parallel to the surface of a flat mirror. The law of reflection only applies to flat surfaces. Convex mirrors serve as passenger door mirrors in cars.

The law of reflection states that the angle of incidence & angle of reflection is identical. A smooth finish causes a specular reflection of light. Since incident rays are parallel, reflected rays must also be parallel. Light striking a rough surface causes diffuse reflection.

The two principles governing specular reflection are,

1. At the point of incidence, the incidence angle, the reflected ray, as well as the normal towards the reflecting interface all lie in the very same plane.

2. The angle of incidence and reflection are equal.

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Using Ohm's law, we can find the current flowing in the circuit: I = V / R where I is the current, V is the voltage, and R is the resistance.

When a resistor of 25 ohms is connected to the battery, the terminal pd is 1.25 V. This means that the voltage drop across the internal resistance of the battery is: 1.5 V - 1.25 V = 0.25 V. Using Ohm's law, we can find the internal resistance of the battery: 0.25 V / I = R_internal. Substituting the given values, we get: R_internal = 0.25 V / (1.5 V / 25 ohm) = 4.17 ohm. The current flowing in the circuit is: I = 1.25 V / 25 ohm = 0.05 A. When the resistance is replaced by 10 ohms, the current flowing in the circuit is: I = 1.5 V / 35 ohm = 0.043 A. Using the same approach as before, the terminal pd can be calculated as: 1.5 V - 0.043 A * (R_internal + 10 ohm) = V_terminal. Substituting the value of R_internal, we get: V_terminal = 1.5 V - 0.043 A * (4.17 ohm + 10 ohm) = 1.34 V. Therefore, when the resistance is replaced by 10 ohms, the current flowing in the circuit is 0.043 A, the internal resistance of the battery is 4.17 ohm, and the terminal pd is 1.34 V.

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When you add an identical bulb in parallel to the original bulb (Figure 1), the total current supplied by the battery increases. In a parallel circuit, each branch provides a separate pathway for current to flow.

Adding an identical bulb in parallel creates an additional path, decreasing the overall resistance in the circuit. According to Ohm's law (I = V/R), with the same voltage (V) and decreased resistance (R), the total current (I) increases.

As a result, the current supplied by the battery doubles when an identical bulb is added in parallel. This is because the current is divided between the two bulbs, with each bulb carrying half of the total current.

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Answer:

when all forces acting on an object remain the same

None of the choices is correct.

Equilibrium is the condition when all forces acting on an object are balanced. Then, the object doesn't accelerate.  It continues in constant, uniform motion. It moves at a constant speed (which may be zero), and in a straight line.

Optimal banking angle for an indoor track depends on the velocity of the person running.

The banking angle for the semi-circles of an indoor track is determined by the velocity of the person running. To find the optimal angle, we can use the equation tan(theta) = v^2 / (g * r), where theta is the banking angle, v is the velocity of the runner, g is the acceleration due to gravity, and r is the radius of the curve.

For a runner moving at a constant speed v, the banking angle should be adjusted so that the horizontal component of the normal force balances the centripetal force. This can be achieved by setting the banking angle equal to the arctangent of v^2 / (g * r). For a runner moving at a speed of 10 m/s, the optimal banking angle would be approximately 20 degrees.

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Both enthalpy (δh) and entropy (δs) changes are because a process is more spontaneous when entropy and enthalpy are increased.

The change inside the disorderedness of a reactant to produce the product is defined by the entropy change of such a reaction, S.

Both enthalpy (δh) and entropy (δs) changes are -

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Answer: C. -1.16 meters/second2

Explanation:

A= v/t (velocity/time)

in this case: v=7 and t=6

So, A= 7/6

A=1.16

The graph is decreasing so accelleration would be negative

A= -1.16 meters/second2

Option C! ; )

Answer:

-1.16 meters second^2

Explanation:

I got 100% on my test

The total rotational inertia of the pizza dough is 0.0146 kg·m^2.

The rotational inertia of the dough can be calculated using the formula for the rotational inertia of a solid disk rotating around its axis:

I_dough = (1/2) * m_dough * r^2

Substituting the given values, we get:

I_dough = (1/2) * 0.34 kg * (0.23 m)^2 = 0.0105 kg·m^2

The rotational inertia of the rim can be approximated as that of a circular ring rotating around its axis:

I_rim = m_rim * (r_outer^2 + r_inner^2)/2

Substituting the given values:

I_rim = 0.16 kg * ((0.23 m)^2 + (0.02 m)^2)/2 = 0.0041 kg·m^2

Therefore, total rotational inertia of pizza dough:

I_total = 0.0105 kg·m^2 + 0.0041 kg·m^2 = 0.0146 kg·m^2

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Magnitude of the gravitational field at the surface of a neutron star whose mass is 1.71 times the mass of the sun and whose radius is 10.2 km is approximately g = 1.984*10^12 m/s²

g=GM/R²

g=6.67*10^-11*1.71*1.989*10^30/(10.2*10^3)^2

g=1.984 * 10^12 (approximately)

Magnitude in physics is simply described as "distance or quantity." It shows the size or direction that an object moves in either an absolute or relative sense. It is a way of expressing something's size or scope. Magnitude in physics often describes a length or a size. An attribute of a mathematical object that indicates whether it is bigger or smaller than other things of the same kind is its magnitude or size. Formally speaking, an object's magnitude is the visible outcome of the class of objects it belongs to's ordered results.

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Answer:

The chef can make 8 casseroles

Explanation:

Units Conversion

We need to recall 1 gallon = 16 US cups.

A casserole needs 1 cup of milk, and the chef has 0.5 gallons of milk. Those 0.5 gallons are equivalent to 0.5*16 = 8 cups, thus the chef can make 8 casseroles.

The idea behind IMC is to design a controller by incorporating an internal model of the process dynamics. For the given process transfer function, PID controller parameters can be derived using the IMC approach.

Internal Model Control (IMC) is a control approach developed in the 1980s that aims to improve the performance of feedback control systems. It involves designing a controller that includes a model of the process being controlled, allowing for better compensation and faster response to disturbances.

Using the IMC approach, the parameters of a Proportional-Integral-Derivative (PID) controller can be derived.

To derive the PID controller parameters using the IMC approach for a given process transfer function G(s) =\(Ke^(^-^s^T^S) / (s + 1)\), the following steps can be followed:

1. Identify the process dynamics: Analyze the process transfer function to understand its behavior and dynamics. In this case, the process transfer function represents a first-order system with a time constant of T and a gain of K.

2. Select the desired closed-loop transfer function: Determine the desired closed-loop transfer function based on the performance requirements. This involves selecting appropriate values for the closed-loop time constant and damping ratio.

3. Calculate the controller parameters: Using the IMC approach, the controller parameters can be calculated based on the desired closed-loop transfer function. This involves determining the model transfer function that matches the desired closed-loop response and deriving the controller parameters from it.

In summary,By comparing the simulation results obtained using the IMC approach with another controller design method of choice, it is possible to evaluate the effectiveness and performance of the IMC approach in achieving the desired control objectives. This allows for an assessment of the advantages and disadvantages of using IMC in different scenarios.

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Internal Model Control (IMC) is a control approach developed in the 1980s that aims to achieve better control performance by incorporating a mathematical model of the controlled process into the controller design. By using IMC, the controller parameters can be derived based on the process transfer function, leading to an improved control strategy.

In the given process transfer function, \(G(s) = Ke^(^-^s^T^S^) / (s + 1),\) where K, T, and S are the process parameters. To derive the PID controller parameters using the IMC approach, we follow these steps:

Determine the process model: Analyze the given transfer function and identify the process parameters, such as gain (K), time constant (T), and delay (S).

Design the Internal Model Controller: Based on the process model, create an internal model that accurately represents the process dynamics. This internal model is usually a transfer function that matches the process behavior.

Derive the controller parameters: Use the IMC approach to determine the PID controller parameters. This involves matching the internal model to the process model and selecting appropriate tuning parameters to achieve desired control performance.

By utilizing the IMC approach, the PID controller parameters can be obtained, allowing for improved control of the process. This method considers the process dynamics explicitly and tailors the controller design accordingly, resulting in better performance and robustness.

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Answer:

12m/s

Explanation:

Using the equation of  motion

v = u + at

Given that

u = 0m/s

a = 2m/s²

time t = 6s

Substitute the given values into the expression

v = 0 + 2(6)

v = 0+12

v = 12m/s

Hence the required velocity is 12m/s

Answer:X-ray diffraction (XRD) is the technique most heavily relied on in soil mineralogical analysis. X-ray diffraction is a technique that provides detailed information about the atomic structure of crystalline substances. It is a powerful tool in the identification of minerals in rocks and soils.

Explanation:

XRD is used to identify the minerals composing clay-rich, hydrothermally altered rocks that occur on several Cascade volcanoes. Such rocks are believed to play an important role in the generation of large landslides and mudflows. XRD is used to analyze saline minerals, including borates.

"The clock on the big ben tower in London reads 12 noon. If you travel away from the clock at a very high speed and view it with a telescope, you would see it run slower than a clock in your vehicle" (Option A) This phenomenon is known as Time Dilation.

Time dilation is defined in physics and relativity as the difference in elapsed time as measured by two clocks. It is either owing to a difference in relative velocity or a difference in gravitational potential between their places.

When left undefined, "time dilation" generally refers to the impact of velocity.

Time dilation is the "slowing down" of a clock as determined by an observer in relative motion with regard to that clock under the theory of special relativity.

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Full Question:

Suppose you look at the huge clock on the Big Ben Tower in London and it reads 12 noon. If you could travel away from the clock at the speed of light and view it with a telescope, it would:

a) run slower than usual

b) run faster than usual

c) be frozen at 12 noon

The distance from the other focus to the center of the asteroid's orbit is approximately \(2.19 \times 10^{11}\) m. The distance from the other focus to the center of the asteroid's orbit is about 315.5 times the solar radius.

The eccentricity of an asteroid's orbit is defined as the ratio of the distance between the two foci of the ellipse to the length of the major axis of the ellipse. Therefore, we can use the given eccentricity and semimajor axis to find the distance between the foci of the ellipse.

Let's denote the distance between the two foci as 2c, and the semimajor axis as a. Then, we have:

e = c/a

0.0172 = 2c/(\(2.21 \times 10^{11}\) m)

Solving for c, we get:

c = 1.866 x \(10^{9}\) m

Therefore, the distance from the center of the ellipse to each focus is:

f = c - a =

= \(1.866 \times 10^{9} m - 2.21 \times 10^{11} m\)

≈ \(-2.19 \times 10^{11}\) m

However, since one focus is at the center of the Sun, we only need to consider the positive distance:

f = c + a ≈ \(-2.19 \times 10^{11}\) m

The ratio of this distance to the solar radius is:

ratio = f / (\(6.96 \times 10^{8}\)m) ≈ 315.5

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The force of gravity on a 1.5 kg mass at the Earth's surface can be found using the formula F = G(m₁m₂/r²) where F is the force of gravity, G is the gravitational constant, m₁ is the mass of the first object, m₂ is the mass of the second object, and r is the distance between the two objects. The mass of Earth is 6×10²⁴ kg and its radius is 6.4×10⁶ m.

Given that mass of Earth, m = 6×10²⁴ kg, radius of Earth, r = 6.4×10⁶ m, and the mass of the object, m₁ = 1.5 kg.

The formula for gravity is given by:

F = G(m₁m₂/r²)

Substituting the given values in the above equation we get:

F = (6.67 × 10^-11)(1.5 × 6×10²⁴)/ (6.4×10⁶)²= 1.47 N

Therefore, the force of gravity on a 1.5 kg mass at Earth's surface is 1.47 N.

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Answer:

The relationship between light and matter produces three phenomena, namely:

Explanation:

In everyday use, reflective materials are used on construction apparel, handheld electric torch, headlamp of vehicles etc.

     2. Absorption:  When matter captures electromagnetic radiation, it converts the energy of photons into internal energy and absorption is said to have taken place.  

Light absorption by the chlorophyll in plants for use in production is an example of how humans use light absorption albeit indirectly.

     3.  Transmission        

When matter is transparent or semi-transparent it allows light to pass through. For semi-transparent matter, some of the light is absorbed.

Transmission of light is used predominantly in various kinds of lighting effects for interior decoration and houses.

     4. Emission

When matter releases energy as light, it is said to have emitted light.

Examples of everyday emission of light include Light Emitting Diode which is used in remote controls.

Cheers!

The addition of vectors allows to find the vector that the equilibrium is

                F = (40.02 i ^ - 49.95 j ^) N

Parameters given

To find

The force is a vector magnitude so the sum of the force must be done using the methods to add vectors.

One of the easiest methods to perform the addition of vectors is the analytical method where each vector is decomposed in a Cartesian system and the components added using algebraic summation and then the resulting vector is constructed.

We decompose the vector

                 cos θ = \(\frac{A_x}{A}\)Ax / A

                 sin θ = \(\frac{A_y}{A}\)

                 Aₓ = A cos θ

                 \(A_y\)= A sin θ

                 Aₓ = 64 cos 128.7

                 \(A_y\) = 64 sin 128.7

                 Aₓ = -40.02 N

                 \(A_y\) = 49.95 N

To find the vector that allows equilibrium, we work each axis independently

X axis

                 Aₓ + Fₓ = 0

                 Fₓ = - Aₓ

                 Fₓ = 40.02 N

Y axis

                  \(A_y + F_y =0 \\F_y = - A_y\\F_y = - 49.95 N\)

We can write the resulting vector in two ways

1) F = (40.02 i ^ - 49.95 j ^) N

2) in the form of module and angle

Let's find the module with the Pythagoras' Theorem

              F =\(\sqrt{F_x} ^2 + F_y^2)\\F = \sqrt{40.02^2 + 49.95^2 }\)  

              F = 64 N

Angles

              tan θ = \(\frac{F_y}{F_x}\)

              θ = tan⁻¹  \(\frac{F_y}{F_x}\)

              θ = tan⁻¹ \(\frac{-49.95}{40.02}\)

              θ = -51.3º

This angle is measured clockwise from the positive side of the x-axis

In conclusion using the sum of vectors we can find the vector that allows the equilibrium is

                F = (40.02 i^  - 49.95 j^ ) N

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a) The center of mass is 28 cm from the 800 g ball. b) The rotational kinetic energy is 0.63 J if the structure rotates about its center of mass at 100 rpm.

To find the center of mass of the system, we need to consider the mass and position of each component. Since the rod is 40 cm long and has a mass of 200 g, we can treat it as a point mass located at its midpoint, which is 20 cm from each ball. The center of mass is then the weighted average of the positions of the three point masses. Using the formula for the center of mass, we find that the center of mass is 28 cm from the 800 g ball.To find the rotational kinetic energy, we need to know the moment of inertia of the system and the angular velocity. Since the system is rotating about its center of mass, we can use the parallel axis theorem to find the moment of inertia. The moment of inertia of the two balls is 0.14 kgm^2, and the moment of inertia of the rod is 0.004 kgm^2. The total moment of inertia is then 0.144 kg*m^2. Converting 100 rpm to radians per second, we get an angular velocity of 10.47 rad/s. Using the formula for rotational kinetic energy, we find that the rotational kinetic energy is 0.63 J.

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Answer:

Below

Explanation:

1. Everest

2. Godwin Austen

3. Kangchenjunga

4. Lhotse

5. Makalu

6. Cho Oyu

7. Dhaulagiri

8. Manaslu

9. Nanga Parbat

10. Annapurna

Sorry I don't know anything about their types :(

I hope this helps you :)

Answer:

the 10 tallest mountains are Mount Everest, K2, Kangchenjunga, Lhotse, Makalu, Cho Oyu, Dhaulagiri, Manaslu, Nanga Parbat, and finally annapurna 1 and they are all fold

Explanation:

they are all in the himalayas And the Himalayan mountains are all folded mountains I think

The work that is required to increase the speed to 16 knots is 14,176.47 Joules

If a catamaran with a mass of 5.44×10^3 kg is moving at 12 knots, hence;

5.44×10^3 kg = 12 knots

For an increased speed to 16knots, we will have:

x = 16knots

Divide both expressions

\(\frac{5.44 \times 10^3}{x} = \frac{12}{16}\\12x = 16 \times 5.44 \times 10^3\\x = 7.23\times 10^3kg\\\)

To get the required work done, we will divide the mass by the speed of one knot to have:

\(w=\frac{7230}{0.51}\\w= 14,176.47Joules\)

Hence the work that is required to increase the speed to 16 knots is 14,176.47 Joules

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Answer:

an example of when friction is a hindrance, is if someone with shorts is sliding down a slide. their skin rubbing on the slide will cause friction and will slow them down. another example is if you're dragging a large wooden box across the floor. the wood and the floor interacting cause friction and will make it more difficult to push the box.

Explanation:

hope this helps :D

Answer:

LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right bcs i got it lol, yw btw! hahaha! good luck also, subscribe to my channel!

Explanation:

The weight of picture frame that is hanging by two vertical strings the tensions in the strings are 5.7N and 3.5N is 9.2 N

Since the picture frame is hanging and not moving,

a = 0

The string apply a force upwards and weight is a force that acts downwards.

T1 = 5.7 N

T2 = 3.5 N

∑ Fy = m a

T1 + T2 - W = 0

5.7 + 3.5 - W = 0

W = 9.2 N

Therefore, the weight of picture frame is 9.2 N

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Answer:

A

Explanation: