A cart is loaded with a brick and pulled at a constant speed along an inclined plane the the height of a seattop. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, then what is the potential energy of the loaded cart at the height of the seattop?

Answers

Answer 1

Answer: gravitational potential energy = mass (kg) x gravitational field strength (N/kg) x height (m)

Therefore,

3 x 0.45 x 10 = 13.5J <- it's joules because it's energy

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The tendency for an object in motion to remain in motion is called ____________________.
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If you have a vector which is 12 Newtons at 75 degrees south of west, what other vector is equivalent to this vector? a) 12 N at 15 degrees west of south b) 12 N at 15 degrees south of east c) 12 N at 15 degrees north of east d) 12 N at 15 degrees south of west
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A charge of 90 C passes through a wire in 1 hour 15 minutes . what is the current in the wire

Answers

We calculate current from the formula:
$I= (q)/(t)$ , where q is a electric charge transferred over time t
Time should be converted to seconds:
1h 15 min= 75min= 4500s
I= $(90C)/(4500s)=0,02A$ Result is in unit-Ampere

Current = C / seconds.

1 hour = 3600 seconds
15 minutes = 900 seconds

1 hour 15 minutes = 4500 seconds

90 C / 4500 sec = 0.02 amperes = 20 milliamperes

In the modern quantum-based atomic theory, what is the name given to a particular space around the nucleus in which an electron moves?

Answers

In the modern quantum based atomic theory, the name given to a particular space around the nucleus in which an electron moves is called orbital. You might be interested to know a little more about the term orbital. Atomic orbital is actually a mathematical function that describes the wave like nature of a single electron or a pair of electrons within an atom.

Answer:

orbital

Explanation:

____________ occurs when an energy source transfers heat directly to another object through space; an example would be an object becoming warm by sitting in the sunshine. a. conduction
c. convection
b. radiation
d. heat

Answers

the answer is Radiation

Answer:

B or the second option (Radiation) for Edg 2020

Explanation:

Which form of radiation is used to kill microorganisms?

Answers

Answer:

X- rays, gamma rays.

Explanation:

Ionizing radiations are used to kill microorganisms. These radiations include x-rays, gamma rays and high energy electron beam. These radiations are passed into the cell. As a result, the cell component and the molecular structure gets damaged. These rays are used to kill microorganisms because they penetrate more than other rays.

Gamma Rays, Ionizing Radiation, Xrays

Inertia is defined as the tendency of an object to resist a change in motion. Objects moving in space tend to move in straight lines because of inertia. If this is the case, then why do planets orbit in elliptical paths?A The magnetic force caused by the lining up of the distant stars pushes the planets into curved paths.
B The force of gravity between planets keeps them on a curved path and prevents them from leaving the solar system.
C The force created by the nuclear fusion of the hydrogen in the Sun causes the planets' curved paths.
D The speed of the planets and the gravitational pull of the Sun cause the planets' curved paths.

Answers

Answer:

Option D is the answer

Explanation:

The gravitational pull of the sun bends the path of the planet making it move in a elleptical path.

You are vacationing in Iceland and exploring one of its famous volcanoes, Eyjafjallajokul, which erupted in April 2010. While sightseeing, you find some rocks near the base of the volcano. What type of rock would these most likely be?Igneous

Metamorphic

Sedimentary

Lavaneous

Answers

Answer:

Igneous

Explanation:

A volcano region is where aesthenospheric rocks are released to the surface of the earth. This aesthenosphere rocks are usually semi liquid and highly viscous . The volcanic eruption releases magma originating from the aesthenosphere to the surrounding. When this magma creeps or erupt to the surface of the earth , it is known as lava.

Due to the low temperature and pressure the surface of the earth possess, the Lava solidifies to form extrusive igneous rocks.

Igneous rocks can be formed below the earth surface or on the earth surface . The location where this rocks forms determines the kind of igneous rock formed.

Generally, Igneous rocks are formed from molten magma. If the molten magma solidifies on the surface of the earth like the case of the famous volcanoes, Eyjafjallajokul the rocks formed are known as Extrusive igneousrocks.

Rocks most likely found at the base of the volcano will be an igneous rock.

igneous rock is the correct answer I hope this helps

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An object that is dropped straight down from a height of 100 m has a vertical change in position that is less than that of an identical object thrown horizontally from the same height. true or false?

Displacement vectors of 5 km north, 3 km east, 2 km south, and 3 km west combine to a total displacement of ___