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4 years ago

PLEASE HELP!! I NEED TO GO TO SLEEP!! WILL MARK BRAINLIEST TO THE PERSON WHO ANSWERS QUICKLY AND CORRECTLY! 15 POINTS!

Physics

2 answers:

Sedaia [141]4 years ago

7 0

I’m thinking it would be b

seropon [69]4 years ago

4 0

Answer:

B. The frequency increases (gets higher) as the wavelength size will decreases (get shorter).

Explanation:

Speed of Light = Wavelength times Frequency

c = λν

We know that wavelength and frequency are inversely proportional; if frequency increases, energy increases as well but wavelengths decrease.

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Sandra is having difficulty with her reading assignment because she does not fully understand the language. Which online tool wo

Ede4ka [16]

Answer:

The answer is a TRANSLATION TOOL or D

Explanation:

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3 years ago

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Recall that the spring constant is inversely proportional to the number of coils in the spring, or that shorter springs equate t

ruslelena [56]

Answer:

$x_1= 0.0425m$

Explanation:

Using the tension in the spring and the force of the tension can by describe by

T = kx

, T = mg

Therefore:

$m*g = k*x$

With two springs, let, T1 be the tension in each spring, x1 be the extension of each spring. The spring constant of each spring is 2k so:

$T_1 = 2k*x_1$

$2T_1 = m*g=4k x_1$

Solve to x1

$x_1=\frac{m*g}{4k}$

$x_1=\frac{k*x}{4*k}$

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$x_1 = 0.170 / 4$

$x_1= 0.0425m$

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3 years ago

A 1000 kg elevator accelerates upward at 1.0 m/s2 for 10 m, starting from rest. a. How much work does gravity do on the elevator

cricket20 [7]

Answer:

a)= 98kJ

b)=108kJ

c) = 10kJ

Explanation:

a. The work that is done by gravity on the elevator is:

Work = force * distance

= mass * gravity * distance

= 1000 * 9.81 * 10

= 98,000 J

= 98kJ

b)The net force equation in the cable

T - mg = ma

T = m(g+a)

T = 1000(9.8 + 10)

T = 10800N

The work done by the cable is

W = T × d

= 10800N × 10

= 108000

=108kJ

c) PE at 10m = 1000 * 9.81 * 10 = 98,100 J

Work done by cable = PE +KE

108,100 J = KE + 98,100 J

KE = 10,000 J

= 10kJ

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4 years ago

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3. which item is not an asset

katovenus [111]

Answer:

I think a loan is not a asset.

Explanation:

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2 years ago

Why are gases poor conductors of heat? A. Particles in a gas do not collide. B. Particles in a gas collide more often. C. Partic

german

Answer:

C. Particles in a gas collide less often.

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4 years ago