Ram travel 50metre on a straight road in 30second . hari covers the same distance on the same road in 45s . who has done more work ? who has more ? Explain in short
Answer:
The ram has done more work because the rate at which the ram work is 1.6m/s and Hari is 1.1m/s
(c) Life testing was made on six non-replaceable) electrical lamps and the following results were obtained. Calculate MTTF. (5 Marks)
MTTF or Mean Time to Failure can be calculated using the given data. The term MTTF is often used to describe the expected lifetime of electronic devices and other items.
Here is how to calculate MTTF when given data:(c) Life testing was made on six non-replaceable) electrical lamps and the following results were obtained.
Calculate MTTF.The following data has been given:Number of lamps, n = 6Total time, T = 10000 hoursFailures, f = 2MTTF formula is given as:MTTF = T / n * fWhere, T = total time during which the test was conducted.n = the number of items tested.f = the number of items failed.Using the given data, we can calculate the value of MTTF as follows:MTTF = T / n * f = 10000 / 6 * 2= 1666.67 hoursTherefore, the MTTF of the six non-replaceable electrical lamps is 1666.67 hours.
To know more about Failure visit:
https://brainly.com/question/32870226
#SPJ11
What is air??????????????
Answer:
Air is what you breath in
looking at the image above, which example is creating a sound wave with the shortest wavelength?
Most persons are of the belief that the old time hard or solid iron cars are much safer in collisions than the new model softer cars. But how can newer, softer cars be safer in a collision, considering momentum?
A. It Implies That M Is Finitely Generated. B. It Implies That M Has Nonzero Elements Of Nonzero Order. C. When Every Non-Null Element Has Null . D. In The Case That The Ring R Is A Body. E. None Of The Above Alternatives Gives A
Which of the following alternatives give a true statement. Justify your answer.
A modulus M over a ring R has a finite basis:
a. It implies that M is finitely generated.
b. It implies that M has nonzero elements of nonzero order.
C. When every non-null element has null .
d. in the case that the ring R is a body.
e. None of the above alternatives gives a true statement.
Which of the following statements are true?
a. If a subset of a module generates that whole module, then the subset cannot be
empty.
b. Every submodule S of a module M verifies the inequality C. Two different subsets of M have to generate two different submodules of M.
d. If S generates a submodule N of the module M, then contains S.
e. Neither statement is true.
The correct answer is e. None of the above alternatives gives a true statement. None of the statements in options a, b, c, and d are true when it comes to a modulus M over a ring R having a finite basis.
When a modulus M can be formed entirely from a finite set of elements, the modulus M is said to be finitely generated. M's finite basis does not, however, automatically imply that M is finitely generated. A basis is a set of linearly independent elements, and it might not be enough to produce all of the components of the modulus.
According to the assertion in option b, M must include nonzero items of nonzero order if it has a finite basis. This is untrue, though. The smallest positive number k, such that the element raised to the power of k equals the identity element, is referred to as the order of an element.
According to option c, every non-null element in a modulus with a finite basis has a null. Nevertheless, this claim is likewise untrue. It is possible for a modulus with a finite basis to have non-null elements without a null element.
According to option d, a ring R is a body, or a field, and only then can a modulus have a finite basis. However, this assertion is also untrue. Even though the ring R is not a field, a modulus can nonetheless have a finite basis. None of the given alternatives provides a true statement about a modulus M over a ring R having a finite basis.
To know more about modulus here https://brainly.com/question/30402322
#SPJ4
According to Newton's law of inertia, what must happen in order for an object's motion to change?
Answer:
Explanation:
there must be a cause—which is a net external force—for there to be any change in velocity, either a change in magnitude or direction.
A local electricity company charges $1. 00 per kWh for the first 2000 kWh and $3. 50 for every kWh afterwards. A fuel adjustment charge of
$0. 50 per kWh is added to all electricity bills. If Mrs. Browns previous
monthly meter reading was 17 800 kWh and the current monthly meter
reading is 20 300 kWh, calculate the electricity bill for Mrs Brown for
the current month
According to the given statement Mrs. Brown's electricity bill for the current month is $5000.00.
To calculate Mrs. Brown's electricity bill for the current month, we need to determine the total number of kilowatt-hours (kWh) she has consumed and apply the corresponding rates.
1. Calculate the electricity usage:
Current meter reading - Previous meter reading
20,300 kWh - 17,800 kWh = 2,500 kWh
2. Determine the cost for the first 2000 kWh:
$1.00/kWh * 2000 kWh = $2000.00
3. Determine the cost for the remaining kWh:
500 kWh * $3.50/kWh = $1750.00
4. Add the fuel adjustment charge:
$0.50/kWh * 2500 kWh = $1250.00
5. Calculate the total bill:
$2000.00 + $1750.00 + $1250.00 = $5000.00
To calculate the electricity bill, we first find the difference between the current and previous meter readings.
In this case, Mrs. Brown used 2,500 kWh.
For the first 2000 kWh, the cost is $1.00 per kWh, resulting in a charge of $2000.00.
For the remaining 500 kWh, the cost is $3.50 per kWh, totaling $1750.00.
Additionally, a fuel adjustment charge of $0.50 per kWh is added to the bill. This amounts to $1250.00.
Finally, we add up all the charges to get the total bill, which is $5000.00.
To know more about electricity visit;
https://brainly.com/question/12791045
#SPJ11
A baseball is thrown at an angle of 29° relative to the ground at a speed of 29.8 m/s. The ball is caught 76.7687 m from the thrower.
The
acceleration due to gravity is
9.81 m/S'
2
How long is it in the air?
Answer in units of s.
Answer:
2.94 sec
Explanation:
Horizontal component of velocity = 29.8 cos 29°
Rate * time = distance
29.8 cos 29 * t = 76.7687 m
t = 2.94 sec
750 n crate slides 10 m down a ramp that makes an angle of 25° with the horizontal. if the crate slides at a constant speed, how much thermal energy
The amount of thermal energy produced when the crate slides at a constant speed is27,618.38 J.
The amount of thermal energy produced by a 750 N crate that slides down a ramp that makes a 25° angle with the horizontal and travels a distance of 10 m at a constant speed can be calculated using the formula for work-energy theorem.
Let's first calculate the speed at which the crate slides down the ramp. Using the formula:
tan(θ) = opposite/adjacent
tan(25°) = h/10
h = 10 tan(25°)
h = 4.27 m
So, the height of the ramp is 4.27 m. From the work-energy theorem,W = ΔK+Wnc. Here, Wnc represents the non-conservative work. As the crate slides down the ramp, the frictional force acting on it does non-conservative work by converting mechanical energy into thermal energy.
Therefore, Wnc = ΔEthermal where ΔEthermal is the change in thermal energy. To calculate ΔK, we need to first calculate the speed of the crate. Using the formula:
mg sin(θ) - μmg cos(θ) = ma750 sin(25°) - 0.3 × 750 cos(25°) = 750 a
0.4229 - 193.08 = 750 a-192.66 = 750 a
Therefore, a = -0.2568 m/s²
Negative sign indicates that the acceleration of the crate is opposite to the direction of motion (i.e., upwards against the gravity).Using the formula:
v² - u² = 2asv² - 0² = 2 × (-0.2568) × 4.27v = 1.165 m/s
So, the speed of the crate is 1.165 m/s.To calculate ΔK, using the formula:
ΔK = ½mv² - ½mu²= ½ × 750 × (1.165)² - 0= 508.33 J
Therefore, W = ΔK + WncΔEthermal = Wnc = W - ΔK= mgh + ½mv² - ½mu² - ΔK= 750 × 9.81 × 4.27 + ½ × 750 × (1.165)² - 0 - 508.33= 28,126.71 J - 508.33 J= 27,618.38 J
Therefore, the amount of thermal energy produced is 27,618.38 J.
Learn more about thermal energy https://brainly.com/question/31208401
#SPJ11
what would be the importance of a topographic map in a rescue situation?
Answer:
Topographic maps give the user the ability to view a three-dimensional landscape on a two-dimensional map. One who is able to read a topo map can identify the elevation and location of valleys, peaks, ridges, and other land features.
Explanation:hope this helps
Environmental factors that can affect activity selection include
A. personal safety, pollution, and extreme temperatures
B. cost of facilities, extreme temperatures, and pollution
C. competitive level, extreme temperatures, and personal safety
D. pollution, competitive level, and extreme temperatures
Please select the best answer from the choices provided.
А
B
C
D
Answer:A
Explanation:
Answer: A.
Explanation: I hope this helps :) -
Environmental factors are diverse and far reaching.
...
They include:
Exposure to hazardous substances in the air, water, soil, and food.
Natural and technological disasters.
Climate change.
Occupational hazards.
The built environment. Goal
Promote health for all through a healthy environment.
Overview
Humans interact with the environment constantly. These interactions affect quality of life, years of healthy life lived, and health disparities. The World Health Organization (WHO) defines environment, as it relates to health, as “all the physical, chemical, and biological factors external to a person, and all the related behaviors.”1 Environmental health consists of preventing or controlling disease, injury, and disability related to the interactions between people and their environment.
The Healthy People 2020 Environmental Health objectives focus on 6 themes, each of which highlights an element of environmental health:
Outdoor air quality
Surface and ground water quality
Toxic substances and hazardous wastes
Homes and communities
Infrastructure and surveillance
Global environmental health
Creating healthy environments can be complex and relies on continuing research to better understand the effects of exposure to environmental hazards on people’s health.
Why Is Environmental Health Important?
Maintaining a healthy environment is central to increasing quality of life and years of healthy life. Globally, 23% of all deaths and 26% of deaths among children under age 5 are due to preventable environmental factors.1 Environmental factors are diverse and far reaching. They include:
Exposure to hazardous substances in the air, water, soil, and food
Natural and technological disasters
Climate change
Occupational hazards
The built environment
Related Topic Areas
Cancer
Heart Disease and Stroke
Occupational Safety and Health
Physical Activity
Respiratory Diseases
Poor environmental quality has its greatest impact on people whose health status is already at risk. Therefore, environmental health must address the societal and environmental factors that increase the likelihood of exposure and disease.
-Have a good day :)
1) Archeologists have found fossil remains of some of the first land
animals in layer C. It has been suggested that C-14 be used to data the fossils. Some archeologists have objected and suggested that it would be best to use U-238 or Pb-206 to date the rock layer instead. Why would they make such a suggestion?
A)
Rocks do not contain any elemental carbon for
radiometric dating purposes.
B)
Carbon-14 is only found in living things, it can only
be used to date remains.
C-14 has a very short half-Life, 5700 years, and based
on geologic history, layer C may be several million
years old.
C)
C-14 has such a long half-life, 570000 million years,
D) it would be more appropriate to use a radioactive
element with a shorter half-Life.
Answer:
C
Explanation:
carbon has a shorter half life
The half-life of carbon-14 is about 5,700 years and is too short to date rocks
What will be the life of the rock?The half-life of a substance is the time taken for half of that substance to decay. The earth, and so the rocks on and in it, are very old.
Estimates place the earth to be 4-5 billion years old, which is why carbon-14 is unsuitable for the determination of the ages of rocks.
The original quantities of carbon-14 present in the rocks will deplete to exceptionally low levels, meaning they can not be detected accurately.
On the other hand, due to the longer half-life of uranium, measurable quantities will be present.
Thus the half-life of carbon-14 is about 5,700 years and is too short to date rocks.
To know more about Half-life follow
https://brainly.com/question/2320811
a 250 gm ice-cube is thrown in an ice-rink and it travels 40 meters. the same cube is thrown with the same horizontal velocity on a football field and it travels 5 meters. why is that?
The reason why an ice cube travels further in an ice rink than on a football field is the friction force on a football field bigger than the friction force in an ice rink.
According to non-uniform motion v₂² = v₁² + 2ad
v₁ = initial velocityv₂² = v₁² + 2ad
0 = v₁² + 2ad
2ad = - v₁²
a = - v₁² ÷ 2d
Because d₁ > d₂a₁ < a₂According to Newton's second law
F = m a
m = massThe frictional force is always opposite to the direction of the object's motion. The object will slow down or has a negative acceleration.
Learn more about friction force here: https://brainly.com/question/23161460
#SPJ4
ASAP
A spring is stretched downward by a certain length and, as a result, exerts a
force in the upward direction. What happens to the force exerted by the
spring if the length by which it is stretched is reduced by half?
O A. The force exerted by the spring is reduced by half.
B. The force exerted by the spring is doubled.
O C. The force exerted by the spring reduced by one quarter.
O D. The force exerted by the spring remains unchanged.
Answer:
A
Explanation:
Hooke's law! F(spring)=-kx
There's no tricky square law here. The spring constant doesn't change, only x (distance stretched) changes. Therefore, if distance is halved, Force will be halved.
Your personal stance on corporate and civil responsibilities for proper waste disposal practices and recycling.
Clearly explain, with supporting reasons, why you believe this social concern is important. You also must include a clear and balanced understanding that there are varying perspectives that may be different from your stance. You need to demonstrate that you can successfully communicate on this issue of social concern with other diverse groups/people who may not agree with you.
In you own words. 200 words.
Corporate and civil responsibilities for proper waste disposal practices and recycling are crucial for the health and sustainability of our planet. As humans, we have a responsibility to ensure that our actions do not negatively impact the environment or harm future generations.
Proper waste disposal and recycling practices can significantly reduce the amount of waste that ends up in landfills and oceans, ultimately contributing to a healthier planet.
From a corporate standpoint, companies have a responsibility to reduce their environmental impact and implement sustainable practices. This includes reducing waste production, using recyclable materials, and investing in renewable energy sources. Companies that prioritize environmental responsibility can also benefit from positive brand image and increased customer loyalty.
On the other hand, individuals also have a responsibility to properly dispose of their waste and actively participate in recycling efforts. This can be as simple as separating recyclables from non-recyclables or using reusable products instead of single-use items.
However, it is important to acknowledge that there are differing perspectives on this issue. Some may argue that implementing proper waste disposal and recycling practices can be costly or inconvenient. It is important to engage in constructive dialogue and consider different viewpoints in order to find solutions that work for everyone.Corporate and civil responsibilities for proper waste disposal practices and recycling are crucial for the health and sustainability of our planet. As humans, we have a responsibility to ensure that our actions do not negatively impact the environment or harm future generations.
Overall, I believe that corporate and civil responsibilities for proper waste disposal practices and recycling are crucial for the health and sustainability of our planet. We must work together to prioritize the environment and make sustainable practices a priority in all aspects of our lives.
learn more about generations here
https://brainly.com/question/12319302
#SPJ11
What is magnetic force??
O A. A force between protons
O B. A force between two poles
O C. A force caused by air particles
O D. A force between objects with mass
Answer:
I believe it's B.
Explanation:
The force that a magnet exerts on certain materials, including other magnets, is called magnetic force. The force is exerted over a distance and includes forces of attraction and repulsion. North and south poles of two magnets attract each other, while two north poles or two south poles repel each other.
2. A new racecar track is being created, and the owners want the cars to complete 10
miles in 7 laps. What does the diameter of the track have to be to meet their
requirements?
Answer:
0.45 miles
Explanation:
since, car will be running on the edge of track, distance covered in one lap by car will be equal to circumference of track.\
we will use value of pi as 22/7
Circumference for any circular shape is given by \(\piD\)\(\pi D\)
Hence, in one lap \(\pi D\) distance will be covered
in 7 laps \(7 \pi D\) distance will be covered.
but is given that 7 laps should be equal to 10 miles
so 10 miles will be equal to \(7\pi D\)
\(7\pi D= 10 \ miles\\=> 7*(22/7)* D= 10 \ miles\\=> 22D = 10 \ miles\\=> D = 10/22 \ miles\\=> D = 0.45 \ miles\)
Thus, diameter of track will be 0.45 miles to meet the requirement.
Make the following conversions. .. . ..
0°C to K
273°C to K
0 K to °C
25°F to °C
15°C to °F
50°F to K
5 K to °F
In order to make these conversions, we need to understand the relationship between Celsius (°C), Kelvin (K), and Fahrenheit (°F) temperatures.
Starting with the first two conversions, 0°C to K and 273°C to K, we know that Kelvin is simply Celsius plus 273. So, 0°C + 273 = 273 K, and 273°C + 273 = 546 K.
The third conversion, 0 K to °C, is a bit trickier since Kelvin is an absolute temperature scale and does not have negative values like Celsius and Fahrenheit. However, we can use the same relationship as before and subtract 273 from 0 K to get -273°C, which is also known as absolute zero.
Moving on to the next two conversions, 25°F to °C and 15°C to °F, we can use conversion formulas. To convert Fahrenheit to Celsius, we subtract 32 and multiply by 5/9. So, (25°F - 32) x 5/9 = -3.89°C. To convert Celsius to Fahrenheit, we multiply by 9/5 and add 32. So, (15°C x 9/5) + 32 = 59°F.
The next conversion, 50°F to K, requires a similar formula to convert Fahrenheit to Celsius and then add 273 to get Kelvin. So, (50°F - 32) x 5/9 + 273 = 283.15 K.
Lastly, 5 K to °F requires us to first subtract 273 from Kelvin to get Celsius, and then use the formula to convert Celsius to Fahrenheit. So, (5 K - 273) x 9/5 + 32 = -450.67°F.
In summary, we can use conversion formulas and relationships to make temperature conversions between Celsius, Kelvin, and Fahrenheit. It's important to remember the formulas and relationships to ensure accurate conversions.
Learn more about temperature here:
https://brainly.com/question/7510619
#SPJ11
Why are the scientists so confident that they have succeeded in making a detection?
Scientists are confident that they have succeeded in making a detection when they have observed a signal that is consistent with the predicted characteristics of the phenomenon they are trying to observe.
When this signal is statistically significant, meaning that it is unlikely to have occurred by chance. For example, in the case of gravitational wave detection, scientists use highly sensitive detectors, such as the Laser Interferometer Gravitational-Wave Observatory (LIGO) to measure minuscule distortions in space-time caused by passing gravitational waves.
When the data from the detectors is analyzed, scientists look for signals that match the predicted waveform of a gravitational wave. They also use statistical methods to determine the probability that the observed signal is not just random noise.
If the observed signal matches the predicted waveform and has a low probability of occurring by chance, scientists can be confident that they have made a detection. However, it is important to note that these detections are often very difficult to make and require a high level of precision and accuracy in both the instruments and the analysis techniques used.
Therefore, scientists also subject their findings to rigorous peer review and validation by independent researchers to confirm the validity of their results.
Learn more about LIGO here:- brainly.com/question/30722973
#SPJ11
In the rocket, what is the equal and opposite reaction?
Answer:
see below
Explanation:
Gases flying out at high velocity out the back
rocket flying forward
in what direction is the earth's angular velocity for its daily rotation on its axis
The Earth's angular velocity for its daily rotation on its axis is in the counterclockwise direction (eastward).
The Earth's angular velocity for its daily rotation on its axis is in the eastward direction. From above, this movement would look like the Earth is moving counterclockwise. This means that the Earth rotates from west to east, causing the sun to appear to rise in the east and set in the west. This is also why time zones are arranged with earlier times to the east and later times to the west. The Earth's rotation on its axis is what causes the cycle of day and night.
Learn more about angular velocity at https://brainly.com/question/20432894
#SPJ11
A system is heated with 134 J of energy and, at the same time, the system expands, doing 89 J of work. What is the change in internal energy of the system, in Joules
The change in internal energy of the system after the heat is added and the system expands doing work to the surrounding is 45 J.
Change in internal energy of the system
The change in internal energy of the system is determined by applying the first law of thermodynamics as shown below;
ΔU = q - w
where;
ΔU is the change in the internal energyq is heat added to the systemw is work done to the surroundingsΔU = 134 J - 89 J
ΔU = 45 J
Thus, the change in internal energy of the system after the heat is added and the system expands doing work to the surrounding is 45 J.
Learn more about change in internal energy here: https://brainly.com/question/23236669
A basket contains 7 white cats and 15 black cats. What is the ratio of the number of white cats to the number of black cats?
Calculate the 1000-500 mb thickness if the height of the 1000mb surface is 185m and the height of the 500 mb surface is 5525m.
Answer: The 1000-500 mb thickness is -5340 meters.
The 1000-500 mb thickness is a measure of the vertical distance between the 1000 mb and 500 mb pressure levels in the atmosphere. To calculate this thickness, we subtract the height of the 500 mb surface from the height of the 1000 mb surface.
In this case, the height of the 1000 mb surface is given as 185 m, and the height of the 500 mb surface is given as 5525 m.
To find the thickness, we subtract the height of the 500 mb surface from the height of the 1000 mb surface:
185 m - 5525 m = -5340 m
The negative sign indicates that the 1000 mb surface is lower in height than the 500 mb surface.
Therefore, the 1000-500 mb thickness is -5340 m.
It is important to note that this value represents the thickness in meters, and the negative sign indicates a decrease in height as we move from the 1000 mb to the 500 mb level.
To know more about meters visit:
https://brainly.com/question/372485
#SPJ11
What are the latitude and longitude coordinates for Location C? 1) 50N, 68S 2) 50N, 68W 3) 50S, 68E 4) 50S, 68W Which is farther- the distance between Location B and the Equator or the distance between Location C and the Equator? 1) Location B and the Equator 2) Location C and the Equator 3) Locations B and C are the same distance from the Equator 4) Cannot discern from the information provided
The latitude and longitude coordinates for Location C are given as 50S, 68W. Therefore, the correct answer is 4) Cannot discern from the information provided.
Latitude and longitudinal lines are shown on a globe of Earth as parallel and vertical lines. To determine which distance is farther, we need to compare the distance between Location B and the Equator with the distance between Location C and the Equator.
However, the latitude and longitude coordinates for Location B and the specific direction or coordinates of the Equator are not provided. Without this information, it is not possible to determine which distance is farther between Location B and the Equator or Location C and the Equator.
To know more about latitudes, refer:
https://brainly.com/question/13478781
#SPJ4
If a moving object is 75% kinetic energy how much potential energy does it have?
Answer:
the ebergy
Explanation:
energy does it have if a miving object
Give me an example of heterogeneous mixture
Answer:
oil and water
Explanation:
you must design a runway that allows planes to reach a ground speed of 65 m/s before they can take off. If the planes accelerate at 2.5m/s/s, what must the minimum length of the runway be?
Answer:
d = 845 m
Explanation:
This is an exercise in kinematics, specifically accelerated motion, let's use the equation
v² = v₀² + 2 a d
since airplanes start from rest their initial velocity is zero
v² = 2ad
d = v2 / 2a
let's calculate
d = 65² / (2 2.5)
d = 845 m
this is the minimum distance from the track
After rubbing the hair on your head with a balloon, you determine there are 2.4 x 1018 electrons on your head. What is the charge, in coulombs (C), of your head?
Answer:
q = 0.384 C
Explanation:
The total charge present at the head can be easily found out by multiplying the charge on a single electron with the total number of electrons present on the head:
\(q = ne\)
where,
q = total charge on head = ?
n = total no. of electrons on the head = 2.4 x 10¹⁸
e = charge on 1 electron = 1.6 x 10⁻¹⁹ C
Therefore,
\(q = (2.4\ x\ 10^{18})(1.6\ x\ 10^{-19}\ C)\)
q = 0.384 C