I NEED ANSWERS ASAP The only real difference between speed and velocity is velocity must have a _____________.



fulcrum


direction


curve


measurement of inertia

Yes, it will be safe to have the turbine component operate at 1150°C

Based on the given information, the melting temperatures of iron and titanium are 1538°C and 1668°C, respectively. In an iron-titanium alloy, these two elements are combined, resulting in an intermediate melting temperature. This alloy would have a higher melting temperature than pure iron and lower than pure titanium.

Operating the turbine engine at 1150°C would be safe, as this temperature is significantly below the melting temperatures of both elements. It provides a sufficient margin of safety for the alloy, ensuring that it remains solid and stable during operation. Additionally, alloys typically have improved mechanical properties, such as increased strength and resistance to wear, compared to their constituent elements. This makes iron-titanium alloys suitable for high-temperature applications like turbine engines.

In summary, using an iron-titanium alloy for a turbine engine operating at 1150°C should be safe and appropriate due to its enhanced mechanical properties and melting temperature range.

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Answer:

16m/s

Explanation:

speed = distance multiply be time taken

Answer:

16

Explanation:

8*2

Answer:

Zero

Explanation:

When it reaches max height, it stops and begins to fall back down....at this point the velocity = 0

Answer:

Earth's magnetic field aligns the magnet in the compass with its north pole. A second method is to observe the night sky in the polar regions. Northern and Southern Lights are produced by the interaction of the Earth's magnetic field with solar radiation.

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The final volume of water in the container after increasing the temperature is 203.8 m³.

From the given,

The initial volume of water (Vο) = 200 cm³

Initial temperature = 4°C = 4+273 = 277K

Final temperature = 95°C = 273+95 = 368 K

Volume expansion co-efficient = 210×10⁻⁶(°C)⁻¹

Final volume =?

β = 1/Vο (ΔV/ΔT),  β represents the volume expansion coefficient, ΔV change in volume, ΔT is the change in temperature, and Vο is the initial volume.

ΔV = β×Vο×ΔT

     = 210×10⁻⁶×200×(368-277)

    =  210×10⁻⁶×200×91

ΔV = 3.83 m³

ΔV = final volume - initial volume

final volume = ΔV + 200

                    = 3.82 +200

                    = 203.82 m³

Final volume = 203.82 m³.

Thus, the final volume of the water is 203.82 m³.

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The flash and report method is a simple and common technique used to measure the speed of sound. In this method, an observer measures the time between seeing a flash, such as from a gunshot or a firecracker, and hearing the corresponding sound. The observer is usually at a known distance from the source of the flash and sound.

To perform the experiment, the observer stands at a fixed distance away from the source of the flash and sound. When the flash is seen, they start a stopwatch or use any other timing device. Once they hear the sound, they stop the timer and note the time difference between the flash and the sound. This time difference is the time it takes for the sound to travel from the source to the observer.

The speed of sound can then be calculated using the formula: speed of sound = distance / time taken. The distance between the observer and the source is divided by the time difference recorded to find the speed of sound in the medium (usually air).

It is essential to ensure that the distance between the source and the observer is accurate and that the observer's reaction time is considered when measuring the time difference. External factors such as temperature, humidity, and altitude also affect the speed of sound and should be taken into account.

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The probable question may be:

Discuss the measurement of the speed of sound using the flash and report method?

Answer:

25m/s

Explanation:

p=mv

75 = 3v

v = 75/3

v = 25 m/s

If you want to verify your answer, just insert the value of v to the equation.

Answer:

The area of the sheet of metal = 4.255 m²

The volume of the sheet of metal = 0.08553 m³

Explanation:

The area of a rectangle is given by the following relation;

Area, A = Length × Breadth

Therefore, the area of the rectangular sheet of metal, A\(_m\), is given as follows;

A\(_m\)  = 4.234 m × 1.005 m = 4.255 m²

The area of the sheet of metal = 4.255 m²

The volume of the metal sheet id given by the relation, volume V\(_m\)= area × Thickness

The thickness of the sheet of metal = 2.01 cm = 0.0201 m

Therefore,

V\(_m\) = 4.255 m × 0.0201 m = 0.08553 m³

The volume of the sheet of metal = 0.08553 m³.

Answer:

Are yarr mei bhi Indian hu.....

Explanation:

Tumse milkar accha laga

Answer:

C. Potential energy

D. Kinetic energy

Explanation:

The power output of  2.00 kg object is accelerated uniformly from rest to 3.00 m/s while moving 1.5 m across a level frictionless surface is 24.09 watts.

In science, power is the time required to do work or provide energy, expressed as work done W or energy transferred divided by the time interval t - or W/t. A fixed amount of work can be done for a long time with a low-powered engine, or for a short time with a high-powered engine. The unit of power is work (or energy) per unit of time. Such as foot pounds per minute, joules (or watts) per second, and ergs per second. Force can also be expressed as the product of the force required to move an object and the object's velocity in the direction of the force. If the magnitude of the force F is measured in pounds and the velocity ν is measured in feet per minute, then the power is equal to Fν foot pounds per minute.

Given,

Mass of object (m) = 2.00 kg

Distance covered (s) = 1.5 m

Velocity of object (v) = 3.00 m/s

For calculation of acceleration:

v² = u² + 2as

3² = 0 + 2 × a × 1.5

9 = 3a

a = 2 m/s²

For calculation of time:

s = ut + ¹/₂at²

1.5 = 0 × t + ¹/₂ × 2 × t²

1.5 = t²

t = 1.22 sec.

For calculation of gravitational force:

F = mg

F = 2 × 9.8

F = 19.6 N

For calculation of work done:

W = F × s

W = 19.6 × 1.5

W = 29.4 J

For calculation of power output:

P = W/t

P = 29.4/1.22

P = 24.09 watts

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Zero energy is lost to friction if the motorcycle only gains an altitude of 21 m before coming to rest.

To calculate the energy lost to friction,

we need to use the relationship between the potential energy gained by the motorcycle and the work done by friction to bring the motorcycle to a stop.

The potential energy gained by the motorcycle can be calculated using:PE = mgh

where m is the mass of the motorcycle, g is the acceleration due to gravity, and h is the height gained by the motorcycle.

Substituting the given values,

we have:

PE = (250 kg) x9.81 m/s^2x (21 m)

PE = 51,622.5 J

The work done by friction can be calculated using:

W = Fd

where F is the force of friction, and d is the distance travelled by the motorcycle before coming to a stop.

Since the force of friction is in the opposite direction to the direction of motion, the work done by friction is negative.

Substituting the given values, we have:W = -F x d

We don't know the force of friction, but we can use the work-energy principle to relate it to the potential energy gained by the motorcycle and the work done by friction.

The work-energy principle states that:W = ΔK + ΔU

where ΔK is the change in kinetic energy, and

ΔU is the change in potential energy.

Since the motorcycle comes to a stop, the change in kinetic energy is equal to the initial kinetic energy (since the final kinetic energy is zero).

Therefore:W = -ΔK + ΔU

Since the motorcycle starts from rest, the initial kinetic energy is zero,

So,

W = -Kf + ΔU

where Kf is the final kinetic energy (which is zero) and

ΔU is the potential energy gained by the motorcycle.

Substituting the given values, we have:W = -51,622.5 J + 51,622.5 JW = 0 J

Therefore, the work done by friction is zero, which means that all of the potential energy gained by the motorcycle was converted to other forms of energy (such as heat and sound). None of the energy was lost to friction.

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Answer:

.....

Explanation:

Derive the short-run total cost, the short-run average cost, the shortrun marginal cost function of the firm under the assumption that capital is the fixed input produces the f(l,k) = k1/2 * l1/2

If the price of capital falls by 50%, the capital-to-labor ratio will: Double

At optimal point,

MPK/MPL = Price of K/Price of L

Substitute the given information as:

L/K = r/w

K/L = w/r

When r decreases by 50%,

L'/K' = 0.5r/w

Or,  

K'/L '= 2w/r

From above,

K'/L' = 2(K/L)

Thus, capital to labor ratio (K/L) will double as double of capital will now be used since its price has fallen by half.

Therefore, it doubles

What is capital-to-labor ratio ?

Capital to Labor ratio measures the ratio of capital employed to labour employed. The capital-labor ratio (K/L) can measure the capital intensity of a firm. The ratio of capital to labor ratio reflects changes in the labor productivity of company employees. Its increase indicates a positive trend.

Hence, If the price of capital falls by 50%, the capital-to-labor ratio will: Double

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Explanation:

air resistance (f) =mg

200=100g

g=200/100

g=2m/s^2

Answer:

here we go

Explanation:

\(density \: = mass \div volume \\ mass \: = density \times volume \\ \\ but \: our \: volume \: is \: in \: cubic \: metres \\ convert \: it \: to \: cubic \: centimeters \\ volume \: = 25 \div {(100)}^{3} \\ = 2.5 \times 10^{ - 5} cm^{3} \\ \\ mass = 11 \times (2.5 \times 10 ^{ - 5} ) \\ = 2.75 \times 10 ^{ - 4} grams\)

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Non - Metals:

Some terms:

★ Malleable: This means that metals can be beaten into thin sheets with hammer.

★ Ductile: This means that metals can be drawn into thin wires.

★ Brittle: This means that non-metal break into pieces on hammering.

★ Sonorous: This means capable of producing a ringing sound.

Answer:

c. metallic, sub metallic, or nonmetallic

The efficiency of a certain engine can be determined using the Carnot Cycle equation. The efficiency of an engine is proportional to the difference in temperature between the hot reservoir and the cold reservoir.

The efficiency can be calculated using the following formula:

η = (Th - Tc) / ThWhere,η = efficiency of the engine

Th = temperature of the hot reservoir

Tc = temperature of the cold reservoir

Given that the temperature of the hot reservoir is 700°C and the temperature of the cold reservoir is 230°C.

Therefore,η = (700 - 230) / 700η = 0.67The efficiency of the engine is 0.67 or 67%. In other words, only 67% of the heat energy is converted into mechanical energy while the remaining 33% is lost as waste heat.

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Answer:

the pressure within the atmosphere of Earth

Explanation:

Atmospheric pressure is a force in an area pushed against a surface by the weight of the atmosphere of the earth.

The force required to decelerate the load and bring it to a stop when traveling up the hill is approximately 1,858.8 lbs.

To determine the force required, we need to consider the forces acting on the load. The main forces involved are the gravitational force, the force applied by the cylinder, and the frictional force opposing the motion.

First, let's calculate the gravitational force acting on the load. The weight of the load can be calculated using the formula: weight = mass × acceleration due to gravity.

Since the weight is given as 1,162 lbs, we can assume the mass is also 1,162 lbs (since weight = mass × acceleration due to gravity, and the acceleration due to gravity is approximately 32.2 ft/s²).

Next, we need to calculate the force due to the inclined plane. The force exerted by the inclined plane is equal to the weight of the load multiplied by the sine of the angle of the incline.

So, the force exerted by the inclined plane is 1,162 lbs × sin(17°).

The deceleration distance of 0.25 inches can be converted to feet (0.25/12 ft) and the initial speed of 60 ft/min can be converted to ft/s (60/60 ft/s).

Now, let's calculate the frictional force. The frictional force is equal to the coefficient of friction (0.3) multiplied by the normal force, which is the weight of the load multiplied by the cosine of the angle of the incline.

So, the frictional force is 0.3 × (1,162 lbs × cos(17°)).

The total force required to decelerate the load and bring it to a stop is the sum of the force exerted by the inclined plane and the frictional force, minus the force applied by the cylinder.

Therefore, the force required is approximately (1,162 lbs × sin(17°)) + (0.3 × (1,162 lbs × cos(17°))) - (3 square inches/1 square inch) = 1,858.8 lbs.

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Answer:

b

Explanation:

Answer:

b

Explanation:

trust

The wavelength will be longer, increasing the diffraction angle.

The separation between two successive wave crests or troughs is known as a wavelength.

Here are some wavelength illustrations: Yellow Light, for instance. All visible light has a wavelength between 400 and 700 nanometers (nm).

Radio waves, light waves, and infrared (heat) waves are examples of electromagnetic radiation that flow through space in distinct patterns.

The symbol for the wavelength in the SI is often the letter m. Additionally, multiples or fractions of a metre are employed when calculating wavelength. The use of exponential powers of 10 is noteworthy when wavelengths are a significant feature.

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Answer:

Simple Response: The diffraction angle of the waves is approximately equal to the wavelength divided by the gap width. Therefore, increasing the wavelength will increase the diffraction angle.

Explanation:

Answer:

4.38 %

Explanation:

Given that,

The experimental value of gravity is 10.24 m/s²

The general accepted value of gravity is 9.81 m/s²

We need to find the percent error of the experimental versus accepted values of gravity.

The formula used to find the percentage error is given by :

\(\%=\dfrac{|\text{original value-calculated value}|}{\text{original value}}\)

Putting all the values:

\(\%g=\dfrac{|9.81-10.24|}{9.81}\times 100\\\\\%g=4.38 \%\)

So, the percentage error is 4.38 %.

Despite being two distinct ideas, phenotype and genotype are tightly intertwined. The term "phenotype" describes the physical characteristics of an organism that result from the expression of a person's genes.

The phenotype of an individual is determined by genotype. While an organism's genotype refers to its genetic makeup, its phenotype describes how it looks on the outside. The visible manifestation of a person's genes is their phenotype. Therefore, even an organism belonging to the same species may vary due to a slight variation in their genotype. The primary distinction between the two is this.

Their genotype could be used to decipher the human genetic code. It chooses which features or qualities to display. Even organisms with the same genotype might have different appearances. Periodically, both behavior and appearance change. In contrast, even identical-looking species do not share the same genotype.

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Answer:

Planets, moons, asteroids and sun

Answer:

atomic weight 20.180

protons 10

neutrons 2,8

Explanation:

Answer:

W

Explanation:

its the longest period of time