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olga2289 [7]
2 years ago
11

What is the quantity of work done when a crane lifts a 100-n block from 2 m above the ground to 6 m above the ground?.

Physics
1 answer:
mylen [45]2 years ago
7 0

Answer: by definition work = Force * distanceForce = 100Ndistance = 6 - 2 = 4work = 100 * 4 = 400 J or CStill stuck? Get 1-on-1 help from an expert tutor now.

Explanation:

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On average, each person in the industrialized world is responsible for the emission of 10,000 kg of carbon dioxide () every year
frosja888 [35]

Answer:

17.2 meters

Explanation:

Carbon dioxide (CO2) molecular mass is 44g/mol, then the number of moles of 10000kg carbon dioxide will be:

10,000kg * (1000g/kg)/  (44g/mol) = 227,272moles

The volume of gas in STP is 22.4 L/mol, then the volume of the carbon dioxide will be:

227,272 moles* 22.4L/mol= 5,090,909 L

One liter equal to 0.001 meter cubic. The formula for cube volume is side^{3\\}, if the volume is 5090909L then the side of the cube will be:

volume= side^{3\\}

5090909L * (0.001 m^{3\\}/L)= side^{3\\}

side= \sqrt[3]{5090.909}

side= 17.2m

7 0
3 years ago
Two small nonconducting spheres have a total charge of Q = Q1 +Q2 = 91.0 pC, Q1 < Q2. When placed 32.0 cm apart, the force ea
stiv31 [10]
When a product fails to perform as warranted, this is called a) contractual liability. b) product malfunction. c) malicious manufacture. d) breach of warranty.
3 0
3 years ago
PLS HELP BEING TIMED!!!
Elodia [21]

Answer:

K_{i}+U_{g,i} = K_{f}+U_{g,f}

Explanation:

A closed system is a system where exists energy interactions with surroundings, but not mass interactions. If we neglect any energy interactions from boundary work, heat, electricity, magnetism and nuclear phenomena and assume that process occurs at steady state and all effects from non-conservative forces can be neglected, then the equation of energy conservation is reduce to this form:

\Delta K +\Delta U_{g} = 0 (1)

Where:

\Delta K - Change in kinetic energy of the system, measured in joules.

\Delta U_{g} - Change in gravitational potential energy of the system, measured in joules.

If we know that \Delta K=K_{i}-K_{f} and \Delta U_{g} = U_{g,i}-U_{g,f}, then we get the following equation:

K_{i}+U_{g,i} = K_{f}+U_{g,f} (2)

Where i and f stands for initial and final states of each energy component.

Hence, the right answer is K_{i}+U_{g,i} = K_{f}+U_{g,f}

7 0
3 years ago
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at a major league baseball game, you are sitting a distance 52 meters from home plate. how much time passes between seeing josh
brilliants [131]

sound travels through air at around 340 - 350 m/s.

to cover 52 meters takes it, say, (52/345) = about 0.15 second

This would be the same time-lag even if it were not a major-league game,
except that you might not be able to get a seat 52 meters from home plate
at a little league or t-ball game.
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The plant that is closest to the sun is murcury. Then it is venus, then earth, and then mars. Then it is jupiter, then saturn, then uranus, then neptune.

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