A dipstick is (a direct,an indirect) measurement device

A car starts out from rest (zero velocity) at an elevation of 500 m and drives up a hill to reach a final elevation of 2000m and

natta225 [31]

Answer:29,930 kJ

Explanation:

Given

Car starts with an initial elevation of 500 m and drives up a hill to reach a final elevation of 2000 m

Final velocity (V)=20 m/s

Energy of car increases by 100 kJ

mass of car(m)=2000 kg

$Total Energy =\Delta PE+\Delta KE+\Delta U$

$\Delta PE=mg(\Delta h)=2000\times 9.81\times (2000-500)$

$\Delta PE=29,430 kJ$

$\Delta KE=m\frac{v_2^2-v_1^2}{2}$

$\Delta KE=2000\times \frac{20^2-0^2}{2}$

$\Delta KE=400 kJ$

$\Delta U=100 kJ$

Total Energy=29,430+400+100=29,930 kJ

4 0

4 years ago

Which of the following describes boundaries?

torisob [31]

Answer:

The correct option is;

(2) Boundaries are primarily used to indicate which functions a product will perform as opposed to the functions a user will perform

Explanation:

Product specifications accompanying most products, specifies the product boundaries and limitations which are to be acceptable to (or meet the requirement of) the intended user

The intended user has the option to then set boundaries of use of the product within his possession.

7 0

3 years ago

Look at the first photo of an area that just experienced a wildfire.

Tanya [424]

Answer: Large wildfires continue to burn across the western United States. In its latest briefing, the National Interagency Fire Center reported that 93 large fires have burned more than 1.8 million acres across 14 states. That includes nearly 1.4 million acres in California alone.

Explanation:

7 0

3 years ago

explain each of the following kinds of rockets: Solid-Fuel Rocket, Liquid-Fuel Rocket, Ion Rocket and Plasma Rocket.

Rudik [331]

Answer:

ur answer friend

Explanation:

answer

Solid-Fuel Rocket - a solid-propellant rocket or solid rocket is a rocket with a rocket engine that uses solid propellants. The earliest rockets were solid-fuel rockets powered by gunpowder; they were used in warfare by the Chinese, Indians, Mongols and Persians, as early as 13th century.

Liquid-Fuel Rocket - a liquid-propellant rocket or liquid rocket utilizes a rocket engine that use liqiud propellants. An inert gas stored in a tank at a high pressure is sometimes used instead of pumps in simpler small engines to force the propellants into the combustion chamber.

Ion Rocket - an ion thruster or ion drive is a form of electric propulsion used for spacecraft propulsion. It creates thrust by accelerating ions using electricity. The Deep Space 1 spacecraft, powered by an ion thruster, changed velocity by 4.3 km/s ( 9600 mph ) while consuming less than 74 kg ( 163 lb ) of xenon.

Plasma Rocket - in this type of rocket, a combination of electric and magnetic fields are used to break down the atoms and molecules of a propellant gas into a collection of particles that have either a positive charge (ions) or a negative charge (electrons). In other words, the propellant gas becomes a plasma.

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5 0

3 years ago

Why are alternative energy sources not effective? (10 points) I will mark BRAINLIEST>

zaharov [31]

Answer:

Access to energy underpins human comfort, mobility, economic prosperity and social progress. It touches nearly every aspect of modern life. Over the course of its long history of more than a century, ExxonMobil has evolved from a regional marketer of kerosene to an advanced energy and chemical innovator, and one of the largest publicly traded companies in the world. An industry leader in almost every aspect of the energy and chemical manufacturing businesses, we operate facilities or market products in most of the world’s countries, explore for oil and natural gas on six continents, and research and develop next-generation technologies to help meet the dual challenge of fueling global economies while addressing the risks of climate change.

Explanation:

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5 0

4 years ago