All categories

3 years ago

A 1350 kg automobile has a kinetic energy 3.24 x 106 J. What is the velocity of the car?

Physics

1 answer:

pickupchik [31]3 years ago

7 0

Answer:

219 m/s

Explanation:

Kinetic energy is calculated using the formula:

KE = 1/2mv²

Given:

m = 1350 kg
KE = 3.24 · 10⁶ J

We can solve for the unknown variable v.

Substitute these known values into the formula.

3.24 · 10⁶ = 1/2(1350)v²
3.24 · 10⁶ = 675v²
(3.24 · 10⁶) / 675 = v²
v² = 48,000
v = 219.09 m/s

The velocity of the car is around 219 m/s.

You might be interested in

A transport plane travelling at a steady speed of 132 ms and an altitude of 113 m, releases a parcel when it is directly above a

Crank

Answer:

what time you thinking. about coming down to take a break and ok I will get to?. that was a right answer?

7 0

3 years ago

Encuentra la masa molar TO de 65 litros de SO2

shepuryov [24]

La masa molar de 65 litros de SO2 es igual a 64,1 g/mol.

<h3>Masa molar</h3>

La masa molar de un compuesto depende de su masa presente en 1 mol, entonces:

$MM=\frac{m}{mol}$

Para calcular la masa molar de un compuesto, simplemente suma las masas de cada elemento en el compuesto, así:

$MM_O = 16g/mol\\MM_S= 32.1g/mol$

$32.1 + 2\times 16 = 64.1g/mol$

Así, la masa molar de 65 litros de SO2 es igual a 64,1 g/mol.

Obtenga más información sobre la masa molar en: brainly.com/question/17109809

8 0

3 years ago

The maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 542 nm. What is t

Veseljchak [2.6K]

Answer:

2.295 eV

Explanation:

maximum wavelength, λ = 542 nm = 542 x 10^-9 m

The work function of the metal is defined as the minimum amount of energy falling on the metal so that the photo electrons just ejects the surface of metal.

$W_{o}=\frac{hc}{\lambda }$

where, h is the Plank's constant and c be the speed of light

h = 6.634 x 10^-34 Js

c = 3 x 10^8 m/s

$W_{o}=\frac{6.634\times 10^{-34}\times 3\times 10^{8}}{542\times10^{-9} }$

$W_{o}=3.67\times 10^{-19} J=\frac{3.67\times 10^{-19}}{1.6\times 10^{-19}} eV$

Wo = 2.295 eV

Thus, the work function of this metal is 2.295 eV.

5 0

3 years ago

A high speed train travels with an average speed of 227 km/h. The train travels for 2 h.how far does the train travel in meters?

Sedbober [7]

2 x 227 km/h = 454 m

8 0

3 years ago

Read 2 more answers

A pitcher hurls a 0.25kg ball around a vertical circular path of radius 0.6 m, applying a tangential force of 30N, before releas

Sever21 [200]

Thank you for posting your question here at brainly. Below is the solution:

Ke up top = 1/2*.25 *225
gain of Pot energy = .25*9.81*1.2 
work input = (1/4)(2 pi *.6)*30 

so 
sum of those 3 energies = 
(1/2)(.25)v^2

3 0

4 years ago