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Naddika [18.5K]

3 years ago

7

A 20 newton force moves an object southeast. What two properties of force have been described?

1 answer:

Galina-37 [17]3 years ago

7 0

Answer:

The answer is C

Explanation:

Force is a vector quantity so it has both magnitude and direction. The question shows 20N act as magnitude and Southeast act as direction.

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Power is equal to voltage multiplied by current. Add the missing information in each of the following power equations. P = V P =

butalik [34]

P = V × I
P = R × I^2
P = V^2/R

6 0

4 years ago

Calculate A, E, μ, cv and S for 1 mole of Kr at 298 K and 1 atm (assuming ideal behavior)

vaieri [72.5K]

Answer:

internal energy E 3716.35 j

cv = 12.47 J/K

S = 12.47 J/K

A = 0.29 J

$\mu =3716.35 J/mole$

Explanation:

given data:

Kr atomic number = 36

degree of freedom = 3

1) internal energy E = $\frac{f}{2} n R T$

= $\frac{3}{2} *1*8.314*298 = 3716.35 j$

2) $cv = \frac{E}{T}$

$= \frac{3716.35}{298} = 12.47 J/K$

3) $S = cv =\frac{E}{T} = 12.47 J/K$

4) A, Halmholtz free energy = E -TS = 37146.35 - 12.47*298 = 0.29 J

5) $chemcial potential \mu = \frac{energy}{mole} = 3716.35 J/mole$

6 0

3 years ago

The first impression you give is the most important what does it mean?

Neko [114]

Answer:

The reason why first impressions are so important is that they last well beyond that moment. This is thanks to something called the primacy effect, which means that when someone experiences something before other things in a sequence, they remember that first thing more.

3 0

3 years ago

What is the acceleration of the 698 kg car that experiences a force of 2410 N?

Nostrana [21]

Hey there!

If you're working with Newton's Laws / Acceleration, the formula would mostly like look like this

$F= MA$ or you could say → $A = \frac{F}{M}$

While the $F$ variable represents $net$ $forces$ of your car and the $m$ represents the mass of the car $mass$

Denominator: $2,410$

Numerator: $698$

Your equation: $\frac{2410}{698}$ ( if you simplify that ←) then you have found your result!

$Answer: \boxed{C) 3.45 m/s^2}$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFirst:)$

7 0

3 years ago

What two elements are used with other metals to lower their melting points?

vampirchik [111]

Answer:

C) antimony and bismuth

Explanation:

6 0

3 years ago

Read 2 more answers