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Deffense [45]
4 years ago
9

How much time should be allowed for a 605-mile car trip if the car will be traveling at an average speed of 55 miles per hour?

Physics
2 answers:
lakkis [162]4 years ago
5 0
The question is asking to choose among the following choices that states how much tile should be allowed for a 605 mile car trip if the car will be traveling at an average speed of 55 miles per hour, base on that, the possible answer would be letter C. 11 hours. I hope you are satisfied with my answer 
lesya692 [45]4 years ago
4 0
To find how long it will take for the trip divide miles by the speed.

605 / 55 = 11

So it will take 11 hours to get to the destination.
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An electric slot car has a coil with 100 turns of wire. These loops have a current of 0.1 A and cover an area of 0.1 cm2. If the
Marrrta [24]

Answer:

The torque will be felt by the coil is zero

Explanation:

The torque is:

\tau =\mu B=\mu Bsin\theta

Where

μ is the magnetic moment = N * I * A, where N is the number of turns, I is the current and A is the area

A = 0.1 cm² = 1x10⁻⁵m²

\mu =100*0.1*1x10^{-5} =1x10^{-4} Am^{2}

If the angle between the area and the magnetic field is 0 (are in parallel), then:

\tau =1x10^{-4} *1*sin0=0Nm

3 0
3 years ago
A Ca atom (atomic number = 20) is in the ground state. Light is shined on the atom, exciting the most energetic electron. Which
Vikentia [17]

Answer:

The possible quantum numbers for Ca atom when it is in excited

n = 4

l= 1

m =-1,0,1

Explanation:

Given that,

Atomic number = 20

The configuration of Ca

Ca = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2

So, The principle quantum number is n =4.

The azimuthal quantum number can take value from 0,1,2...(n-1)

In the ground state, l= 0

When it is excited to p state

Then, l = 1

The magnetic quantum number can take value from l to -l

m=1,0,-1

Hence, The possible quantum numbers for Ca atom when it is in excited

n = 4

l= 1

m =-1,0,1

4 0
3 years ago
"One step in the manufacture of silicon wafers used in the microelectronics industry is the melt crystallization of silicon into
nevsk [136]

Answer:

fgfgfdgdg

Explanation:

gfdgfgfgd

7 0
3 years ago
Mars has a very thin atmosphere, and yet its surface temperatures are higher than would be expected, given its distance from the
djverab [1.8K]

True

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Water exists on Mars but the atmosphere is too thin for it to last long on the surface in a liquid state. Instead, water on Mars is found below the surface of the polar regions as water-ice and also as seasonal briny water flows down hillsides and crater walls.

Despite Mars' thin atmosphere, the Red Planet still exhibits a dynamic climate and extreme weather events including impressive dust storms and even snow! But Mars hasn't always been this way. NASA's MAVEN mission scientists reported that Mars once had a thick atmosphere(opens in new tab) that could have supported surface liquid water on the surface for extended periods of time.

What is mars?

Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin atmosphere, and has a crust primarily composed of elements similar to Earth's crust, as well as a core made of iron and nickel. Mars has surface features such as impact craters, valleys, dunes, and polar ice caps. It has two small and irregularly shaped moons: Phobos and Deimos.

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3 0
1 year ago
Use the chart to determine the half-life of carbon-14
lubasha [3.4K]

The correct answer to the question is B) 5,700 years.

EXPLANATION:

Before going to answer this question, first we have to understand half life period of a radio active substance.

The half life period [\ T_{1/2}\ ] of a radio active substance is defined as the time in which half of the radio active specimen has undergone decay.

As per the question, the initial concentration of the radioactive carbon-14 is given as 10,000.

Hence, initial concentration N_{0} =\ 10,000.

After 5,700 years, the remaining radio active specimen is 5000. It means that half of the radio active specimen has undergone decay in 5,700 years.

Hence,  half life period of the radio active carbon-14 specimen is 5,700 years.

7 0
3 years ago
Read 2 more answers
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