A large crate of emergency supplies is dropped from a hovering helicopter. the crate has fallen for 2.90 s calculate the displacement of the crate during this time.

Answers

Answer 1

By using uniform motion, the displacement of a fallen crate after 2.9 seconds is  41.209 meters.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

t = 2.90 s

vo = 0 m/s

a = g = 9.8 m/s²

By substituting the given parameters, we can calculate the displacement with the third equation

s = vo . t + 1/2 . a . t²

s = 0 . 2.9 + 1/2 . 9.8 . 2.9²

s = 0 + 41.209

s = 41.209 m

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Related Questions

A book is placed on a table and a bike moves on a road. Which statement is correct? (3 points) a Both the book and the bike have kinetic energy. b Both the book and the bike have potential energy. c The book has potential energy and the bike has kinetic energy. d The book has kinetic energy and the bike has potential energy.

Answers

c . The book has potential energy and the bike has kinetic energy statement is correct

What are some illustrations of kinetic and potential energy?

Let's use an illustration to demonstrate P. E. and K.E. The hammer has potential energy, which it will have as you raise it higher. On the other hand, the hammer will have kinetic energy when you lower it to strike the surface of the table.

Only chemical energy, which is potential energy held inside the item and in the union of its atoms and molecules, is not regarded as kinetic energy. Motion is created by kinetic energy. Any item in motion has kinetic energy. The more kinetic energy an item possesses, the heavier and quicker it moves. The wheels of a bicycle spin when you push off the pedals.

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Describe the balance found between two different forces in middle-aged stars. What two forces are balanced? Where do they come from? (What creates those forces?)

Answers

The balance of star's equilibrium is essentially brought about by two forces. These forces are the star's inner gravitational pull and the thermal energy produced by fusion processes' outward pressure push. These two forces prevent a star's collapse and constantly maintain a star in equilibrium.

A star's equilibrium with respect to gravity is governed by two forces. These two forces are distinguished as the star's gravity and its outward pressure push, respectively. It is a self-regulating and stable process that keeps the stars in this equilibrium.

star's equilibrium is the term used to describe this state of the stars. The fusion events occurring in a star's core produce an outward pressure force.

From the high-pressure core to the low-pressure surface, which is balanced by inward gravity, is the direction of pressure force in stars.

A star will experience a rise in internal gravity if we add more matter to it, which is again counterbalanced by internal pressure to maintain the star stable.

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How does a firefighter use science

Answers

Answer:

Small Devices

Explanation:

firefighters wear small electronic devices that transmit to a location at a command system.

At t = 0s, a ball is launched straight upward with a velocity of 19.6 m/s. The ball
slows with constant acceleration until it stops at t = 2.00 s. The ball falls back to
the ground with the same acceleration until it hits the ground with velocity
-19.6 m/s at t = 4.00 s. What is the ball's total displacement after 2.00 s? What is
the ball's acceleration during its entire motion?

Answers

The ball's acceleration during its entire motion is  -9.6 m/s^2

The ball's total displacement after 2.00 s is 0 m

From the statements, we have got 2 cases, first we have to find acc and then find the distance, we will kinematics equation to solve this

we have given,

u=19.6 m/s

v=0

t=2 second

a=v-u/t

a= -19.6/2

a= -9.6 m/s^2

the ball's acceleration  is  -9.6 m/s^2

now, we need to find the ball's total displacement after 2.00 s

s=u+gt^2÷2

s= -19.6+9.8×2

s= -19.6+19.6

s= 0 m

the ball's total displacement after 2.00 s is 0 m

Acceleration is the measure of how quickly a body's velocity varies with regard to time. It measures in m/s2.It is claimed that a body has continual positive acceleration when it begins to move with an initial velocity of zero and gradually increases to a positive value over time.

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The total displacement of the ball in 2 seconds is o meter.

Displacement is defined as the change in position of an item. it's far a vector amount and has a course and magnitude. it's miles represented as an arrow that points from the beginning role to the final function. as an example- If an object moves from A role to B, then the object's position modifications.

Acceleration is the price of alternate of the rate of an object with admire to time. Accelerations are vector portions. The orientation of an item's acceleration is given via the orientation of the internet force performing on that object.

u=19.6 m/s

v=0

t=2 second

a=v-u/t

a= -19.6/2

a= -9.6 m/s²

The acceleration of the ball is  -9.6 m/s²

To find the ball's total displacement after 2.00 s

s=u+gt²÷2

s= -19.6+9.8×2

s= -19.6 +19.6

s= 0 m

Hence, the total displacement of the ball after 2 s is 0 m.

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Fred (m=67 kg) foolishly attempts top jump from a canoe (45kg) to the dock. if he jumps forward with a speed of 3.3 m/s how fast will the canoe move backward

Answers

Answer:

Approximately [tex]4.9\; {\rm m\cdot s^{-1}}[/tex] backward, assuming that the canoe was initially stationary.

Explanation:

When an object of mass [tex]m[/tex] is moving at a velocity of [tex]v[/tex], the momentum [tex]p[/tex] of that object would be [tex]p = m\, v[/tex].

With a mass of [tex]m = 67\; {\rm kg}[/tex] and a velocity of [tex]v = 3.3\; {\rm m\cdot s^{-1}}[/tex] forward, the momentum of Fred would be [tex]p = m\, v = 67\; {\rm kg} \times 3.3\; {\rm m\cdot s^{-1}} = 22.11\; {\rm kg \cdot m \cdot s^{-1}}[/tex] (forward.)

Before the jump, the velocity of the boat and Fred were both [tex]0\; {\rm m \cdot s^{-1}}[/tex]. Hence, the momentum of both Fred and the boat would initially be [tex]0\; {\rm kg \cdot m \cdot s^{-1}}[/tex].

Momentum is preserved immediately after the jump. Thus, the momentum of Fred plus the momentum of the boat would still be [tex]0\; {\rm kg \cdot m \cdot s^{-1}}[/tex] after the jump.

Since the momentum of Fred was [tex]22.11\; {\rm kg \cdot m \cdot s^{-1}}[/tex], the momentum of the boat would be [tex](-22.11\; {\rm kg \cdot m \cdot s^{-1}})[/tex] (backward, as the negative sign indicates.)

Rearrange [tex]p = m\, v[/tex] to find velocity in terms of mass [tex]m[/tex] and momentum [tex]p[/tex]:

[tex]\begin{aligned} v &= \frac{p}{m} \\ &= \frac{-22.11\; {\rm kg \cdot m \cdot s^{-1}}}{67\; {\rm kg}} \\ &\approx (-4.9)\; {\rm m \cdot s^{-1}}\end{aligned}[/tex].

In other words, the velocity of the boat would be approximate [tex]4.9\; {\rm m\cdot s^{-1}}[/tex] backwards.

Suppose a popular fm radio station broadcasts radio waves with a frequency of 88. mhz. calculate the wavelength of these radio waves. round your answer to 2 significant digits.

Answers

The wavelength is 1.87 m of these radio waves round your answer to 2 significant digits.

Radio waves are part of the electromagnetic spectrum, any radiation of that electromagnetic spectrum has a speed of 3.00x10⁸ m/s in vacuum.

Consequently, the following equation can be used to determine the wavelength:

c =  λ.ν --------- (1)

Where c is the speed of light, λ is the wavelength and  is the frequency.  

Then, λ can be isolated from equation 1

λ = c / ν --------- (2)

Keep in mind that Hz units must be used to express frequency.

ν = 160 MHz x (1000000Hz/1 MHz)

  = 160000000 Hz

λ = 3 x 10⁸ m/s / 160000000 Hz

But 1 Hz = s⁻¹

λ = 3 x 10⁸ m/s / 160000000 s⁻¹

λ = 1.87 m

Hence, the wavelength is 1.87 m

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a fish tank with mass 1.0kg is placed on a shelf. the dimensions are 37cm x 15cm x 28cm. the shelf can hold a mass of 16kg and the density of water inside it is 1.0g/cm3. calculate the maximum volume of water the fish tank can contain

Answers

Therefore, the calculated volume is 1000 cm³

The density of a place refers to the quantity of things—which may include people, animals, plants, or objects—there are in it. Divide the number of objects by the area's measurement to determine density. A country's population density is calculated by dividing its total population by its area, expressed in square kilometers or miles. For instance, a block of the harder, lighter element gold (Au) will be denser than a block of the heavier element lead (Pb).

Volume of fish tank = mass/ density

mass=1.0 kg=1000 g

density=1.0 g/cm³

volume=1000 cm³

Therefore, the calculated volume is 1000 cm³

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You are done with you vacation and you are about to go back to the u.s. where should you exchange your gbp back to usd; at the hotel at 0.80 gbp per usd or at the local bank for 0.72 gbp per usd?

Answers

At the local bank for 0.72/usd

You are done with you vacation and you are about to go back to the u.s. then The local bank of 0.72 gdp is used.

What is GDP?

The market worth of all the final goods and services produced and sold (not resold) in a certain time period by countries is measured in dollars using the term "gross domestic product" (GDP).

This measure is frequently amended before being regarded as a trustworthy indication due to its subjective and complex character.

To compare living standards between countries, using a basis of GDP per capita at purchasing power parity (PPP) may be more useful, whereas nominal GDP is more useful for comparing national economies on the global market. GDP (nominal) per capita does not, however, reflect differences in the cost of living and the inflation rates of the countries.

Therefore, You are done with you vacation and you are about to go back to the u.s. then The local bank of 0.72 gdp is used.

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If you walked at a speed of 3 m/s and 15 seconds of time has passed how far have you traveled

Answers

Answer: 45 meters

Explanation:

3 m/s ==> 3 meters/second

15 seconds * 3 meters/second=

15*3/1=

15*3=45 meters

3*15 = 45 meters passed

you drive your car in a straight line at 15 m/s for 10 km, then at 25m/s for another 10 km. a) is your average speed for the entire trip more than, less than, or equal to 20 m/s ? choose the best explanation from the following: A. More time is spent driving at 15 m /s than at 25 m/s. B. The average of 15 m/s and 25 m/s is 20 m/s. C. Less time is spent driving at 15 m/s than at 25 m/s.

Answers

Answer:

The average speed for the entire trip is 18.75 m/s.  How is average speed calculated?The average speed is the ratio of total length traveled to total time taken to travel that length.Thus, if then,where Sa is average speed of the traveller.WE cannot average the two speeds in conditions of equal distance. WE  need equal time.Here 15 m/s for 10 km would take 666.67 seconds.   and 25 m/s for another 10 km would take 400 seconds. The Total time: 1066.67 seconds. The Total distance 20 km. The  average speed =  20000 m/1066.67 seconds = 18.75 m/s.  If We had gone 15 m/s for the same *time* as going at 25 m/s, then we  could have averaged the speeds directly.  Hence, The average speed for the entire trip is 18.75 m/s.  Learn more about average speed here:brainly.com/question/12322912

Explanation:

a hot tub has 4.38x10³ kg of water in it. each water molecule has a mass of 2.98x10-²⁴. how many water molecules are in the hot tub?

Answers

The number of water molecules in the hot tub is 1.47×10²⁷ molecules

Data obtained from the question

The following data were obtained from the question:

Mass of water = 4.38×10³ KgMass of one molecule = 2.98×10⁻²⁴ KgNumber of molecules =?

How to determine the number of molecules

The number of water molecules in the hot tub can be obtained as follow

Number of molecules = Mass of water / mass of one molcule

Number of molecules = 4.38×10³ / 2.98×10⁻²⁴

Number of molecules = 1.47×10²⁷ molecules

Thus, number of molecules in the hot tub 1.47×10²⁷ molecules

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which zone has the highest average temperatures all year round? explain why.
I need help with this ASAP.. it is pass due

Answers

The region near Tropic zone has the highest average temperatures all year round because the sunlight comes direct on the tropic zone.

Which zone has high temperature throughout the year?

In the regions between the equator and the tropics i.e. equatorial region, the solar radiation reaches directly the land vertically during daytime almost the whole year. The temperature is very hot and warm in these regions. Due to high temperatures, more water evaporates in this region and the air has more moisture and high humidity is present. Sunlight hits the Earth directly at the Equator. The sunlight spread over a large area, when we move from the Equator to the poles the temperature becomes decreases. Sunlight falls on a smaller surface area at the Equator so heats up very quickly as compared to the poles.

So we can conclude that Tropic zone has the highest average temperatures all year round because the sunlight comes direct on the tropic zone.

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A 2.0-kg object starts from rest at the origin. a 4.0 n force is applied to the object. how far will the object travel in 1.0 seconds?

Answers

A 2.0 kg object which is applied a 4.0 n force will travel 1.0 m in 1.0 seconds

To solve this exercise the formula for net force and the formula for uniformly varied rectilinear motion (UVRM) to be applied are:

F = m * ax = vi * t + (a * t²) / 2

Where:

F = Forcem = massa = accelerationvi = initial velocityx = distancet = time

Information about the problem:

m = 2.0 kgvi = 0 m/st = 1 sF = 4.0 Na = ?x = ?N = kg * m/s²

Applying the net force formula and isolating the acceleration, we get:

F = m * a

a = F/m

a = 4.0 kg * m/s² / 2.0 kg

a = 2.0 m/s²

Applying the formula for UVRM we can calculate the distance:

x = vi * t + (a * t²) / 2

x = 0 m/s * 1 s + (2.0 m/s² * (1 s)²) / 2

x = (2.0 m/s² * 1 s² / 2

x = 2.0 m/ 2

x = 1.0 m

What is force?

It is the physical magnitude that expresses the effort necessary to move the mass of one kilogram with an acceleration of one meter per second squared, this is expressed in units of the international system in Newton.

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Air in a thunderstorm is being heated to temperatures higher than those of the surrounding air by the process of ________, and because of this, the air is ________.

Answers

Air in a thunderstorm is being heated to temperatures higher than those of the surrounding air by the process of condensation, and because of this, the air is unstable.

A thunderstorm is a small-scale storm that includes both thunder and lighting. Additionally, it frequently delivers heavy rain as well as violent gusts. Some thunderstorms have a chance of producing hail and/or tornadoes. Localized heavy snow showers during the winter may also include thunder and lightning.

In every region of the country and at any time of the year, severe thunderstorms pose a variety of risks to people's lives and property, including flooding, lightning-induced wildfires, tornadoes, wind, and hail. Warm, wet air rises into cold air, creating thunderstorms. Condensation occurs when the warm air cools, which causes water vapor to condense into tiny water droplets. Lower in the atmosphere, the cooled air rises once more after warming.

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An object is thrown 16 m/s straight up from a 7 m tall cliff. How much time does it take to hit the ground below?

Answers

An object is thrown 16 m/s straight up from a 7 m tall cliff. 5.73 seconds  time does it take to hit the ground.

From the statement, We have object thrown straight up from a tall cliff and we have to determine how much time does it take to hit the ground below.

initial velocity [u] = 16 m/s

Height of cliff [h] = 7 m

Time taken by the object to attain maximum height with reference to cliff-

v = u + at

0 = u - gt

u = gt

t = u/g = 16/9.8 = 1.63 seconds

Maximum height attained with reference to cliff will be =v² - u² = 2aS

v = 0 [at maximum height]

-u² = - 2gS

u² = 2gS

S = u²/2g = (16 x 16)/(2 x 9.8) = 13.1 meters

Now, the all distance covered by the ball from maximum height untill it reaches the ground =

Downward distance (Max. height to cliff) + 7 m = 13.1 + 7 = 20.1 m

Now, time took  from top to reach the ground will be -

S = ut + 1/2 at²

S = 0 + 1/2 at²

S = 1/2 at²

t [2] = √2S/g = √(2 x 20.1)/(9.8) = 4.1 s

Hence, the time taken by the ball to hit the ground below will be =

1.63 + 4.1 = 5.73 seconds

kinematics deals with motion's parameter like distance,time,velocity

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A circuit element that hinders the flow of current:
O A. can never be used in a parallel circuit.
OB. increases the energy flow in the circuit.
OC. is called a resistor.
OD. allows excess accumulation of charge.

Answers

A circuit element that hinders the flow of current is called a resistor.

Nearly all electronic circuit boards use resistors, which are passive parts. The name "resistor" comes from the resistor's function of exhibiting resistance to current flow.

Resistance is the opposition to the current flow that a resistor exhibits and each resistance is identified by its resistance value in Ohms.Consider a resistor as a basic wire that offers resistance and tries to reduce the passage of electrons, or current, rather than permitting the free flow of electrons through it. Materials like carbon, metal, or metal oxide film are frequently used to make resistors. The kind and quantity of the combination or material that makes up a resistor determines its resistance property. There are two ways to use multiple resistors: in series and parallel.

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A pressure of 10 mm hg is measured using a constant volume gas therometer at tem of 50 c what is the pressure in (mmhg at the zero point

Answers

The calculated pressure is 55 KPa.

The amount of force delivered perpendicularly to an object's surface in relation to its area is known as pressure. Its abbreviation is "p" or "P." An isochoric process in thermodynamics is a thermodynamic process in which the volume of the closed system experiencing the process remains constant. It is also known as a constant-volume process, isovolumetric process, or isometric process.

At the triple point of water, a constant volume gas thermometer registers a pressure of P tr = 40 kPa= 40 *10³ Pa.

Water's boiling point is T=100°C=373.16K.

Let P represent the pressure at the water's boiling point.

The temperature pressure relation for a constant volume gas thermometer is provided below:

T= P/ Ptr *273.16K

P= 273.16 TP tr

= 273.16 /373.16*40*10³

=54620Pa

=5.42*10³ Pa ≅ 55 KPa

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Delivery contains 24 light bulbs out of which 3 are defective. if a person selects 10 lightbulbs at random without replacement, what is the probability that exactly 2 defective bulbsare selected?

Answers

With the concept of Probability the chance of getting exactly 2 defective bulbs is 0.311

What is Probability?

Probability is the branch of mathematics which deals with the determination of the chance or likeliness of an event to occur. Probability may be defined as the ratio of favorable outcomes to the total number of outcomes in an event, mathematically,

[tex]Probability( X)=\frac{F}{T}[/tex]

where,

[tex]F[/tex] = favorable outcomes for a random event X.

[tex]T[/tex] =  total outcomes for a random event X.

X = Random event.

Here in the question, there are 24 light bulbs out of which 3 are defective. A person picks 10 bulbs at random, in which we have to find the probability that he selects exactly 2 light bulbs.

So, here the event is X = exactly 2 bulbs are defective out of 10 bulbs.

Now, using Combination, the total number of outcomes possible are,

T = ²⁴[tex]C[/tex]₁₀

The total number of favorable outcomes are,

F = ³[tex]C[/tex]₂ײ¹[tex]C[/tex]₈

The probability of the event X will be,

P(X) =³[tex]C[/tex]₂ײ¹[tex]C[/tex] / ²⁴[tex]C[/tex]₁₀

P(X) = 0.311

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Which replication method would you use for only file changes instead of entire file changes?

Answers

I would chose block-level replication use for only file changes instead of entire file changes. Instead of duplicating the whole system configuration, block storage replication is a type of disaster recovery at the individual volume level.

Depending on your environment, you can set replication of each volume across local and remote computers to go either way and in synchronous or asynchronous modes.

However, block storage replication only duplicates data at the level of a specific volume, not the complete system environment. This strategy has a number of benefits.

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A copper sphere has a mass of (112.25 ± 0.01) g and its radius of (2.50 ±0.02) cm. Find the uncertainty in density. ( Note: the volume of the sphere is V = 4/3 π r3)

Answers

The uncertainty in the density is 1.71 g/cm^3 (±0.03)

What is the density?

The density of a body is the ratio of the mass to the volume of the copper sphere. We have been given the mass of the copper sphere and its volume thus we can now find the density of the sphere.

Mass = 112.25 g

Volume = 4/3 π r^3 =  4/3 * 3.142 * (2.50)^3 = 65.5cm^3

Density = 112.25 g/65.5cm^3 = 1.71 g/cm^3

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cAN A central force give rise to a torque about that point

Answers

Answer:

In rectilinear motion F = M a describes the motion of a particle

Γ = I α      (torque equals moment of inertia times angular acceleration is the equivalent law in circular motion)

A fixed central force is perpendicular to the direction of motion and cannot change the torque about the point. (for mechanical forces)

However, for electrical forces, F = Q V X B and a changing magnetic field at the center of motion can produce a force perpendicular to the direction of motion.

Perhaps, the question needs to be more specific.

_____________ is a measure of the brand's ability to capture consumer preference and loyalty.

Answers

Brand equity is a measure of the brand's ability to capture consumer preference and loyalty.

When compared to a generic equivalent, brand equity is the value premium that a firm raises from a product with a successful brand. Companies can build brand equity for their merchandise by making them easily recognizable,  memorable, and superior in terms of quality and dependability.

Customers graciously pay a premium for a company's products when it has good brand equity, even if they could purchase the exact thing from a rival for less. Customers effectively pay a high price to do business with a company they know and respect. Because the business with brand equity does not encounter a higher cost than its competitors to create and distribute the product, the price difference goes to their margin.

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A ball is thrown upward with an initial velocity of 16 m/s. the approximate value of g is 10 m/s2. at what time does the ball reach the high point in its flight?

Answers

The ball that is thrown upward with an initial velocity of 16 m/s will reach the high point in its flight in a time of: 1.6 s

The formula for the vertical launch upward and the procedure we will use is:

t max = v₀/ g

Where:

v₀ = initial velocityg = gravityt max = time to reach maximum height

Information about the problem:

g = 10 m/s²v₀ = 16 m/st max =?

Applying the maximum time formula we get::

t max = v₀ / g

t max =(16 m/s)/(10 m/s²)

t max = 1.6 s

What is vertical launch upwards?

In physics vertical launch upwards is the motion described by an object that has been launched vertically upwards in which the height and the effect of the earth's gravitational force on the launched object are taken into account.

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In the electromagnetic spectrum, which type of radiation has less energy than visible light?

Answers

In the electromagnetic spectrum, the type of radiation that has less energy than visible light is microwave.

The electromagnetic spectrum is the arrangement of all types of electromagnetic radiation in order of decreasing frequencies and increasing wavelength. In the electromagnetic spectrum, the frequencies of the electromagnetic radiation can range from as low as 1 hertz to as high as 100 million hertz.

Frequency is directly proportional to energy. In other words, the more frequency an electromagnetic wave has, the more energy it will also have. The electromagnetic wave with the highest frequency and energy is gamma ray. Visible light falls somewhere in the middle of the spectrum, and the frequency of microwaves is less than that of visible light. Hence, microwaves have less energy than visible light.

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what is the change in velocity of a car that starts at rest and has a final velocity of 20 m/s north

P.S. m/s means "meters per second".

Answers

Answer:

20 m/s

Explanation:

the final velocity of the car = 20 m/s

Change in the velocity = final velocity - initial velocity

Change in the velocity= 20 - 0

= 20 m/s

Thus, the change in the velocity would be 20 m/s.

A 10 N object sits on top of a shelf, what’s its mass?

A 0kg
B 1 kg
C 10kg
D 100kg

Answers

Answer:

D 100kg

Explanation:

[tex]1n = 10kg \\ 10n = g \\ g = 10n \times 10kg \\ = 100kg[/tex]

If the wye connected phase to neutral voltage is 277vrms, the phase to phase voltage is __________________

Answers

Answer:

If the wye connected phase to neutral voltage is 277vrms, the phase to phase voltage is 480 VRM S.

The force needed to produce a stress of 1 mpa in a specimen 1 m long and 1 cm x 1 cm in cross section is?

Answers

100 N is the force that is needed to produce the stress.

What is stress?

Stress in physics is the force exerted on a material’s unit area. Strain is the term for a body’s reaction to stress.

The body can distort under stress. Stress units can be used to quantify the amount of force that a material has experienced.

Stress is equal to (elastic modulus – strain).

In physics, where is the stress?

Compressional stress is frequently observed in geological settings along convergent borders where tectonic plates contact. This compressional stress is caused by the weight of the rock pressing down on the rock beneath it.

The overall force applied per unit area is referred to as stress. Pressure and stress are the same in terms of units (Newtons per meter).

Calculation

Stress = Force / Area

Force = stress × Area

          = 1mpa × 1× [tex]10^{-4}[/tex]

          = 100N

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The net work done in accelerating a propeller from rest to an angular velocity of 200 rad/s is 2000 j. what is the moment of inertia of the propeller?

Answers

The moment of inertia of the propeller will be "0.3058 k.gm²"

Given.

Angle of rotation, = 124 rad/s

Work completed, W = 2351.3 J

The Work-Energy Principle is used as,

Kinetic energy Equals Net work done; (W) = (K.E)

We are aware,

→ K.E = × l × ω²

then,

→ W = × l × ω²

By exchanging the values, we obtain

2351.3 = × l × (124)²

thus, The moment of inertia,

I = 2351.3 × 2/[tex]124^{2}[/tex]

= 0.3058 k.gm²

The moment of inertia of the propeller will be "0.3058 k.gm²"

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The greenhouse effect occurs because of the absorption and re-emission of _______ radiation by the atmosphere.

Answers

The greenhouse effect occurs because of the absorption and re-emission of infrared radiation by the atmosphere.

When visible light from the sun enters the earth, it passes through the atmosphere and is absorbed by materials on the earth's surface like rocks, soil and the ocean, which makes the earth heat up. These materials then re-emit infrared radiation. This radiation gets reabsorbed by certain gases in the atmosphere called greenhouse gases, further keeping the earth warm. This effect is known as the greenhouse effect.

The greenhouse effect is essential for all life on earth, as without it, the earth would be a cold, frozen place. However, the level of greenhouse gases in the atmosphere has increased in recent years, further increasing the temperature of the planet, resulting in what is called global warming.

The greenhouse gases include water vapour, methane, carbon dioxide and ozone.

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