Answer:
Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. pls mark me branilest
The ratio of boys to girls in the class was 2 to 3. If there were 18 girls in the class, how many students were in the class
Evaluate this design by describing the criteria it does or
does not meet
Answer:
Personal water filters solve the problem of having access to safe drinking water anywhere. They are available and affordable. The materials used to make them are durable. They protect, rather than harm, users. Overall, the benefits outweigh the risks.
Explanation:
i just know its right because its the sample response :D
The personal water filter meets the following requirements: It cleans tap water for domestic use, is reasonably priced, and is easy to transport.
What is water filter?A water filter reduces water contamination through the use of a thin physical barrier, a chemical reaction, or a biological reaction to remove contaminants.
Conditions were satisfied in the example scenario:
Functionality: The personal water filter is capable of effectively removing germs and other pollutants from water.The filter is portable and convenient to use while traveling or camping because it is small and light.Affordability: The filter is a reasonable solution for those on a tight budget, costing around $20 or so.Durability: The filter can resist the wear and tear of continuous use thanks to its durable plastic design.Unmet requirements:
Heavy Metal Removal: In locations where water sources are tainted with such substances, the filter's inability to remove heavy metals from water raises some questions.In locations where water supplies are contaminated with these bacteria, the filter's ineffectiveness at removing viruses may be a problem.In regions where only saltwater is accessible, the filter's inability to remove salt from the water could be a problem.Longevity: The filter is sturdy, however depending on usage, it might not last as long as other filtering systems and might need to be changed rather frequently.Thus, these are the criteria it does or does not meet.
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batteries are used to power radios, watches, and cell phones,
A) Dry-cell
B) 9-volt
CO Duracell
D) Button
Answer:
dry cell.......,..
...
To properly dispose of oily rags they must be
Answer:
tp put them in a oil safe container. or throw away
Answer:
oil can't be dispose
Explanation:
please mark brainleast
What is the weight of a steel plate in the shape of a circle with a diameter of 10'? The steel weighs 14 Ib per Ft2
Which of these does OSHA require employers to construct and install to minimize electrocution hazards?
Answer:
OSHA requires that the exposed and operating elements of an electrical installation, lighting, equipment, motors, machines, appliances, switches, controls, and enclosures must be constructed and installed so as to minimize workplace electrocution hazards.
list the three major factors that the study of architecture includes.
If a motor or transformer has a low-frequency hum, what can be done to reduce/ eliminate the noise?
What efc number will enable a student to receive the full amount of a pall grant
[tex]\tt \ huge \orange{ oh }[/tex]
least count of scale used in class room is?
Answer:
[tex] {10}^{ - 3} \\ because \: the \: small \: measurement \\ \: by \: using \: scale \: is \: milli \: metere \\ \: it \:i s \: {10}^{ - 3 } \\ thank \: you[/tex]
5. If you use pipe in a footing drain, there should be surface clean-out(s) located
O A. right next to the house.
O B. every 50 ft.
O C. every 100 ft
O D. near the discharge point,
Answer:
b because if u got the sewer and septic system
3. Aqueous cleaners are
parts cleaning agents.
A) O Air-based
B) O Oil-based
C) O Plant-based
D) O Water-based
Answer:
D
Explanation:
Aqueous basically means water.
A farmer is building a grain mill. The grain is poured inside the mill from the top, and the farmer rotates the handle to grind the grain that goes through the mill. In 1–2 sentences, explain how she can improve the design of the mill to require less force for grinding.
Answer:
He/She can use gears or an animal
Explanation:
He/She can use gears or an animal like a donkey
Employees are working within an excavation that is more than 4 foot deep and cannot safely exit the site. What is a hazard that needs to be addressed in this situation?
Select the best option.
Access/Egress
Oxygen Deficiency and Toxic Fumes
Water Accumulation
A hazard that needs to be addressed in the given situation is Access/Egress. Option A is correct.
What is the significance of Access and Egress?When handling a security or emergency scenario, access and egress points are crucial. It is crucial to have rapid access to and exit from the building in case of an emergency.
Planning entrance and egress locations should be done while creating evacuation routes. A safe escape that people can use in an emergency is called emergency egress. In an emergency circumstance like a fire, emergency access and escape are crucial.
In the given case, Employees are working within an excavation that is more than 4 foot deep and cannot safely exit the site, this is clearly deined that the Access/Egress is a hazard that must be dealt.
Therefore, option A is correct.
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Studies show that chlorofluorocarbons (CFCs) such as CFC-12, are contributing to the depletion of the
stratospheric ozone layer.
A) True
B) False
Answer:
true
Explanation:
True .the chlorofluorocarbons also known as CFC’s also contribute on depleting the ozone layer
what are the materials and tools used to build a headgear?
Apollo 13 Describe how the flight controllers developed and used models. What kind of drawings might they have used to solve the problem
Answer:
In order to power the fuel cells that provided most of the electricity used during the flight, the Apollo spacecraft carried two tanks of liquid hydrogen and two tanks of liquid oxygen. ... The testing team decided to solve this problem by heating the tank overnight to force the liquid oxygen to burn off
Solve the inequality. Then graph your solution.
-9v – 10 < 7y +6
TEST ANSWER
PLS IGNORE
5. In an automotive shop, asbestos is found in
A) O Oil
B) O Tires
CO Wiper fluid
Do Brake linings
In an automotive shop, asbestos is found in Brake linings.
What is Asbestos? Asbestos is a fibrous silicate material which was occurring naturally. These minerals have been used in construction and manufacturing for many reasons.In an Automotive shop, asbestos are used in wide variety of auto parts, including brakes, clutches, liners, gaskets, heat shields , etc.,.Drum brakes and disc brakes are usually manufactured using 30% to 60% of asbestos.Decal stripes, spark plugs, undercoating, Sound proofing, Insulation, etc., are also made up of asbestos.Old cars will contain more asbestos parts than new cars. Both professional auto mechanics and car owners who repair themselves are at an increased risk of developing mesothelioma and other asbestos-related diseases.Hence Option D is the correct answer.
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Answer:
D
Explanation:
Brake linings
guyss I seriously and urgently need help what are the steps to build a headgear ??
Answer:
Design. Modern headframes are built out of steel, concrete or a combination of both. Timber headframes are no longer used in industrialized countries, but are still used in developing nations
t/f
in shielded metal arc welding, the arc is shielded from the atmosphere by a gas that is created as a cover electrode melts
Answer:
Im pretty sure its True.
2
Tech A says the Wengine consists of two VR cylinder banks in a
deeper V arrangement to each other. Tech B says rotary engines are
very powerful for their size, but they do not use conventional pistons
that slide back and forth inside a straight cylinder. Who is correct?
of
Answer:tech A
Explanation:
3. Which of these tools is typically not used by Automotive Technicians?
A. Oxyfuel Cutting Equipment
B. Diagnostic Computers
C. Defibrillator
D. Test Instruments
The answer is "Option c", and more explanation can be defined as follows:
Automotive and mechanical service technicians alter their vehicles using oil. Autonomous service technicians and mechanics often referred to as service technicians or services technology experts, inspection, repair, and maintenance of automobiles & commercial vehicles.It contains fundamental rectangles, wrenches, sockets, flips & pinions. Tool to measure torques: As a technician, you will always take things apart and reassemble them. These tools tighten the attachments so that pieces can be reassembled properly. It uses oxyfuel cutters, diagnostic computers, and test instruments.Therefore, "Option C" is correct.
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lu
22. The word biodegradable on a label doesn't necessarily mean a product is environmentally safe.
A) O True
B) O False
A series RLC circuit consists of a 100 W resistor, a 0.15 H inductor, and a 30 µF capacitor. It is attached to a 120 V/60 Hz power line (the voltage 120V is the root mean square value). What are
a. The emf εrms
b. The phase angle ϕ
c. The average power loss
(a) The root mean square value of current in the circuit is 1.14 A.
(b) The phase angle ϕ of the circuit is 17.7⁰.
(c) The average power loss in the circuit is 136.4 W.
Capacitive and inductive reactance of the RLC circuitThe capacitive and inductive reactance of the series RLC circuit is calculated as follows;
Xc = 1/ωC
[tex]X_c = \frac{1}{2\pi f C} = \frac{1}{2\pi (60)(30 \times 10^{-6})} = 88.42 \ ohms[/tex]
Xl = ωL
Xl = 2πfL
Xl = 2π(60)(0.15)
Xl = 56.55 ohms
Impedance of the circuitThe impedance of the circuit is calculated as follows;
[tex]Z = \sqrt{R^2 + (X_c - X_l)^2} \\\\Z = \sqrt{100^2 + (88.42 -56.55)^2} \\\\Z = 104.96 \ ohms[/tex]
Rms current of the circuit[tex]I_{rms} Z = V_{rms}\\\\I_{rms} = \frac{V_{rms}}{Z} \\\\I_{rms}= \frac{120}{104.96} \\\\I_{rms}= 1.14 \ A[/tex]
Phase angleThe phase angle of the circuit is calcuated as follows;
[tex]tan \phi = \frac{X_c - X_l}{R} \\\\tan\phi = \frac{88.42 - 56.55}{100} \\\\tan\phi = 0.3187\\\\\phi = tan^{-1}(0.3187) \\\\\phi = 17.7 \ ^0[/tex]
Average power loss in the circuitThe average power loss in the circuit is calculated as follows;
[tex]P = I_{rms}^2 Z\\\\P = (1.14)^2 (104.96)\\\\P = 136.4 \ W[/tex]
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e) What are the major jobs of a nurse?
Answer:
the major jobs of a nurse are
1.to take care of patients
2.to give medicine to patients in time
3.to help doctors in operation time
LIST the differences between softwood and hardwood
Answer:
Hardwood is usually denser than softwood.
Softwood is cheaper than hardwood.
Hardwood has good fire resistance while softwood has poor fire resistance.
Softwood is lighter than hardwood.
TEST ANSWER
PLS IGNORE
True or false?
Shops can mix refrigerants
Answer:
False
Explanation:
The statement "Shops can mix refrigerants" is false.
What are refrigerants?Refrigerants are the chemicals that are used in the refrigerator's cycle of the air conditioner. They are fluid. Examples of refrigerants are CFC, HCFC, FC, ammonia, etc.
They are changed to form a phase of liquid to gas and gas to liquid. They are their transition stages. There are four types of refrigerants. They are Evaporative Cooling, Mechanical-Compression Refrigeration Systems, absorption, and thermoelectric.
Inadequate system pressures and temperatures can be brought on by mixed refrigerants. This may lead to inadequate cooling of the compressor, potential compressor damage, inadequate cooling, and metering device malfunction.
Thus, the statement is false regarding shops can mix refrigerants.
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Student A says hazardous waste can take the form of solid, liquid, or gas. Student B says hazardous waste can only take the form of a solid. Who is correct?
Group of answer choices
Both A and B
Neither A nor B
Student A
Student B
Answer:
Student A
Explanation:
hope this helps have a great day
Drag each label to the correct location.
Match each power generation system to whether or not its fuel is processed prior to combustion.
coal-fired power plant
gas turbine
biomass power plant
geothermal power plant
Answer:
coal = not processed
geothermal = processed
biomass = processed
gas turbined = not processed
Explanation:
"Pre-combustion capture refers to removing CO2 from fossil fuels before combustion is completed."