Killer whales are known to reach 32 ft in length and have a mass of over 8,000 kg. They are also very quick, able to accelerate up to 30 mi/h in a matter of seconds. Disregarding the considerable drag force of water, calculate the average power a killer whale named Shamu with mass 8.00 x
kg would need to generate to reach a speed of 12.0 m/s in 6.00 s.

Answer:

Supply, demand, global markets, imports and exports, and government Regulation.

Explanation:

Answer:

Patterns may cloud the vision of the design process and send the engineer off track.

Explanation:

Engineers use a cyclical process and must stay on track during this process. A key point to an engineer is being able to have the ability to use creative and critical thinking.

Answer:

Patterns tend to impose a prescribed way of thinking that will limit possible solutions.

Explanation:

While patterns help scientists and mathematicians solve problems, engineers should avoid obvious patterns. These patterns tend to lock in a prescribed way of thinking that will limit possible solutions. While making observations is helpful, don't force them into categories. Watch for observations that are unexpected, and compare and contrast all information before deciding on a final solution.

Answer:

A. A only

Explanation:

Airbags are safety features added to vehicles to prevent or reduce the shock impact during a collision.

Disconnecting the negative battery cable would prevent power from reaching the airbag system, but the airbag system has a capacitor that stores charges at initial incidents and would deploy the bags. After a collision, the airbag leads are shot off preventing the airbag system power.

Answer:

I think we would.

Explanation:

Only if u invent it.

answer

i don't think so

but it will take a lot of thinking if it is

possible

Answer:

a) 15.075  , b ) 12.9

Explanation:

pressure on cylindrical vessel = 1.7 MPa

Twisting moment due to pressure = To of  8( 10^6 ) N-m

outer diameter of vessel = 2.5 m

wall thickness of vessel = 50 mm

Steel wall uniaxial yield strength = 600 MPa

Calculate the factor of safety

a) assuming a max shear stress yield criterion

safety factor = 15.075

b) assuming a von Mises yield criterion

safety factor = 12.9

attached below is the detailed solution of the problem

Answer:

ill try to help you :)

Explanation:

Answer:

116,090 Btus

Explanation:

New, derived traits of human evolution over the past five million years include all of the following except: elongation. The correct answer to the given question is option D .

Derived traits are new traits that have been passed down to a given organism by their ancestors. Some of the derived traits of human evolution over the past five million years include:

Encephalization: Encephalization is the evolutionary trend of brain size increasing relative to body size over geological time in a lineage. This evolutionary trend was observed in the human lineage.

Lack of body hair: One of the derived traits of human evolution is the lack of body hair. Humans have a far less dense body hair than other apes and primates. The loss of body hair facilitated an increase in sweat gland density, which helps us regulate our body temperature.

Reduced sexual dimorphism: The reduced differences between the sexes in size and appearance over time in a given population is referred to as reduced sexual dimorphism.

Elongation: Elongation is not a derived trait of human evolution over the past five million years, so it is the correct answer.

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On a 15-foot boat, it is typically required to have a U.S. Coast Guard-approved personal flotation device (PFD) or life jacket on board for each person.

The exact regulations may vary depending on the jurisdiction and local laws, but ensuring the availability of an appropriate PFD for every individual on the boat is a common safety requirement.

The PFDs should be of the appropriate size and type for each person, and they should be in good condition and readily accessible in case of an emergency. It is essential to follow the specific regulations and guidelines provided by the relevant maritime authority in your area to ensure compliance and promote boating safety.

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the engine is allowed to cool down completely before attempting to remove the turbine engine igniter plug.

This is done to ensure that the electrical power to the igniter system is completely disconnected and there is no residual electrical charge that could pose a safety hazard to the technician.

Additionally, it is important to follow proper safety protocols and guidelines provided by the engine manufacturer or maintenance manual. These guidelines may include wearing appropriate personal protective equipment, using insulated tools, and following step-by-step procedures for plug removal to minimize the risk of electric shock or other potential hazards.

It is always recommended to consult the specific engine's maintenance manual or seek guidance from a qualified professional for accurate and detailed instructions on removing turbine engine igniter plugs to ensure safety and proper maintenance procedures are followed.

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Answer:

a

Explanation:

Answer:

The work transfer per unit mass is approximately 149.89 kJ

The heat transfer for an adiabatic process = 0

Explanation:

The given information are;

P₁ = 1 atm

T₁ = 70°F = 294.2611 F

P₂ = 5 atm

γ = 1.5

Therefore, we have for adiabatic system under compression

\(T_{2} = T_{1}\cdot \left (\dfrac{P_{2}}{P_{1}} \right )^{\dfrac{\gamma -1}{\gamma }}\)

Therefore, we have;

\(T_{2} = 294.2611 \times \left (\dfrac{5}{1} \right )^{\dfrac{1.5 -1}{1.5 }} \approx 503.179 \ K\)

The p·dV work is given as follows;

\(p \cdot dV = m \cdot c_v \cdot (T_2 - T_1)\)

Therefore, we have;

Taking air as a diatomic gas, we have;

\(C_v = \dfrac{5\times R}{2} = \dfrac{5\times 8.314}{2} = 20.785 \ J/(mol \cdot K)\)

The molar mass of air = 28.97 g/mol

Therefore, we have

\(c_v = \dfrac{C_v}{Molar \ mass} = \dfrac{20.785}{28.97} \approx 0.7175 \ kJ/(kg \cdot K)\)

The work done per unit mass of gas is therefore;

\(p \cdot dV =W = 1 \times 0.7175 \times (503.179 - 294.2611) \approx 149.89 \ kJ\)

The work transfer per unit mass ≈ 149.89 kJ

The heat transfer for an adiabatic process = 0.

The load current is to be varied from 12 to 100 mA while maintaining a constant voltage across R at 12 7.2 = 4.8 V.

When the load current is at its highest, the minimal Zener current will occur. The output voltage will remain constant over the regulating range if R = 43.5 is added to the circuit. It is possible to write the current I in a p-n junction diode as I=I0(exp(eVKBT)1), where I0 is referred to as the reverse saturation current, V is the voltage across the diode, which is positive for forward bias and negative for reverse bias, I is the current through the diode, and KB is the Boltzmann constant.

The load current will be zero (IL = 0) when there is no load connected to the circuit.

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Answer:

volunteer coordinator

Explanation:

because they are volunteering for that and in most of the cases they do not expect to be paid

Answer:

The main reason for bridges collapses is: earthquakes (natural disasters) and construction incidents. Whenever a natural disaster occur, it makes the bridge collapse. An example is hurricanes. Hurricanes come with a great wind and that might lead to the bridge collapsing. Construction incidents means the bridge falls during construction. Those who are employed in health, safety and environmental management need to make sure that during the construction, they have examined the material and made sure it is strong. Working with economists, they should seek better understanding of the methods for minimizing the costs during the life of the bridge. In case for natural disasters, like flooding, they should make the bridge in a lever where the water won't reach the bridge. And they should have a limit for weight in the bridges because that is another reason it collapses, because the bridge does not support extra weight.

Explanation:

hope this helps

False. It is advisable to follow guideline outline by the lab or consult the lab instructor before downloading.

There may be unique guidelines and limitations on obtaining data or visiting particular websites at some institutions or labs. To avoid any potential problems, always verify with your lab instructor or follow the specified instructions.

These download guidelines have been put in place to avoid downloading information that might be considered sensitive, illegal, or detrimental to the operating systems.

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Answer:

the perimeter of a square room is 48m. what is the area of the room? What cost will incur if the rate of carpeting the room is Rs. 10 per m square

To obtain a parallel realization for the given transfer function H(z), we need to factorize the denominator and rewrite the transfer function in a parallel form.

Given:

H(z) = (-11z - 16) / [(\(z^{2}\) + z + 12)(\(z^{2}\) - 4z + 3)]

First, let's factorize the denominators:

\(z^{2}\) + z + 12 = (z + 3)(z + 4)

\(z^{2}\) - 4z + 3 = (z - 1)(z - 3)

Now, we can write the transfer function in the parallel form:

H(z) = A(z) / B(z) + C(z) / D(z)

A(z) = -11z - 16

B(z) = (z + 3)(z + 4)

C(z) = 1

D(z) = (z - 1)(z - 3)

The parallel realization of H(z) is:

H(z) = (-11z - 16) / [(z + 3)(z + 4)] + 1 / [(z - 1)(z - 3)]

To implement this parallel realization, you can consider each term as a separate subsystem or block in your system. The block corresponding to (-11z - 16) / [(z + 3)(z + 4)] would handle that part of the transfer function, and the block corresponding to 1 / [(z - 1)(z - 3)] would handle the other part.

Please note that the specific implementation details would depend on your system and the desired implementation platform (e.g., digital signal processor, software implementation, etc.). The parallel realization provides a structure for organizing and implementing the transfer function in a modular manner.

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The exit temperature, relative humidity, and exit velocity can be determined by analyzing the heat transfer and psychrometric properties of the air as it undergoes the cooling process.

In the given scenario, air enters a cooling section with a diameter of 30 cm. The initial conditions of the air are 1 atm pressure, 35°C temperature, and 45% relative humidity.

The air velocity is 18 m/s, and heat is being removed from the air at a rate of 950 kJ/min. We need to determine the following:

a) The exit temperature of the air in °C.

b) The relative humidity of the air at the exit in percent.

c) The exit velocity of the air in m/s.

To solve this, we would need additional information, such as the cooling process and the properties of the cooling medium. Without these details, it is not possible to provide a specific explanation or calculate the values requested.

The specific cooling mechanism and its impact on temperature, humidity, and velocity need to be considered to determine the exit conditions accurately.

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If I find fluid dripping from a vehicle,  the likeliest direction to look for the actual leak is upwards” from ground based.

A person has to look for leaks in the heater hoses, water pump, engine core plugs, radiator hoses, and radiator hoses. When the engine is cold, the coolant level should be checked.

Note that  The coolant level need to or should be visible in the coolant overflow reservoir. There can be a leak if the fluid level does not or was unable to reach the full line.

Therefore, If I find fluid dripping from a vehicle,  the likeliest direction to look for the actual leak is upwards” from ground based.

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Answer:

If you notice a leak near the rear of the vehicle, you must consider a defective fuel tank is a cause. Fuel leaks can occur in two ways - near the rear of the vehicle and near the front if the fuel line is broken or an injector is going bad. Both fuels are clear, but diesel might have a slight blue tint to it when compared to regular fuel.

Explanation:

Before loading a bit in an electric drill, make sure the drill is "unplugged or the battery" is disconnected to prevent any accidental activation. This safety measure ensures that you avoid any potential injuries while handling the drill.

It is essential to choose the appropriate drill bit for the material you will be working on, such as wood, metal, or masonry. Using the correct bit helps in achieving the desired result and prevents damage to both the tool and the material.

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Technicians A is correct in the given scenario. The correct option is C.

Exhaust gas is a byproduct of combustion that exits the tailpipe of an internal combustion engine.

It consists of a gas mixture that includes carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and particulate matter (PM).

Technician B is mistaken. CO2 levels in the exhaust should be less than 15%, preferably between 13% and 14.5% for petrol engines and 11% to 13% for diesel engines.

High CO2 levels can actually indicate inefficient engine operation, as it means that not all of the fuel in the engine is being burned and is being wasted as exhaust.

Thus, C is the correct answer. A technician is correct.

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Answer:

Explanation:

BCC structure can also be called Body-Centred Cubic. In BCC Structure, single atom is located at every corner of the cube, and one is also located at the centre of the structure.

Each of the four cube corners through which this (110) plane travels has an atom, which it shares with four neighboring unit The percentage of the entire crystallographic plane area that is occupied by atoms is known as planar density.

The packing density of crystals is measured by planar density. A face-centered cubic unit cell's planar density may be determined by following a few straightforward procedures. Determine how many atoms are centered on a certain plane. An FCC crystal, for instance, has 2 atoms on a (1 1 0) plane.

The amount of atoms per unit area on an interest plane defines the planar density, a crucial aspect of a crystal structure.

The percentage of the entire crystallographic plane area that is occupied by atoms is known as planar density. Atomic packing factor analogs in one and two dimensions are linear and planar densities.

Thus, The center atom, however, is totally contained within the unit cell. This means that this BCC (110) plane has an equivalent of 2 atoms.

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Answer:

The amount of heat transferred from the banana is (-)7.54 KJ

Explanation:

As we know,

\(Q = m*c*\Delta T\)

Q = Amount of heat transferred

m = mass of banana

\(T_2 = 5\) degree Celsius

\(T_1 = 20\) degree Celsius

The amount of heat transferred from the banana =

\(0.15 * 3.35 * (5 -20)\\-7.54\)KJ (negative sign represents reduction in heat energy)

Note that the solids content of the concentrate that would yield single-strength juice after dilution would be 10 grams.

Let's assume we have 100 grams of fresh apple juice, which means it contains 10 grams of solids (10% of 100 grams).

When we dilute one part of concentrate with three parts of water, the total volume becomes four parts. Since density is assumed to be constant and equal to the density of water, the total mass will also be conserved.

The total mass after dilution is still 100 grams (100 grams of fresh apple juice).

If one part is concentrate, then the concentrate's mass is 100 grams / 4 = 25 grams.

Since the solids content in the fresh apple juice is 10 grams, the solids content in the concentrate is also 10 grams.

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