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1. ### A wave is described by y = 0.0198 sin(kx - ωt), where k = 2.00 rad/m, ω = 3.52 rad/s, x and y are in meters, and t is in seconds.?

wavelength λ = 2π/ k = 2π / 2.00rad/m = 3.14 m frequency f = ω/2π = 3.52rad/s / 2π = 0.560 Hz speed v = fλ = 0.560Hz * 3.14m = 1.76 m/s If you find this helpful, please select Favorite Answer!

1 Answers · Science & Mathematics · 09/11/2020

2. ### for a=3i+j- k , b= -i+2j+5k, and c=2j-3k, find c(a-b)?

... and z-components like this: a - b = (3 - (-1))i + (1 -2)j + (-1 - 5)) k = 4i - 1j – 6k Then c•(a - b)  = (0i + 2j- 3k)•(4i - 1j – 6k) = 0*4...

2 Answers · Science & Mathematics · 15/11/2020

3. ### A crate is given an initial speed of 5.0 m/s up the 22.5 ∘ plane shown in (Figure 1). Assume μ k = 0.12.?

Let's say the crate has a mass m Upslope is the positive direction  g = -9.81 m/s θ = 22.5° from horizontal Going up-slope F = ma mgsinθ + μmgcosθ = ma a = g(sinθ + μcosθ) a = -9.81(sin22.5 + 0.12cos22.5) a = -4.8417 m/s² v² = u² + 2as s...

2 Answers · Science & Mathematics · 29/10/2020

4. ### what is the acceleration of a 290-Newton child sliding down a playground slide that makes a 55ᵒ angle with the ground (µ k =0.15)?

1 Answers · Science & Mathematics · 22/11/2020

5. ### Rotational Kinetic Energy?

Total KE = KE(linear) + KE(rotational)  K = ½mv² + ½Iω² For solid cylinder, with...

1 Answers · Science & Mathematics · 18/11/2020

6. ### physics. award for clearest answer!!?

a) (m*g+F*sin 45)*μ k = F*cos 45  0.70*9.806*0.36 = F*0.707*(1-0.36)  F = 0.70...

1 Answers · Science & Mathematics · 18/11/2020

7. ### help physics plz?

pV = nkT  --> p = nkT/V  where k = 1.38x10^-23 J/ K   plug in

1 Answers · Science & Mathematics · 04/11/2020

8. ### Physics Help, thank you! :)?

...)⁴ = 15.6r² * T⁴ solves to T = 738 K If you find this helpful, please select Favorite Answer!

1 Answers · Science & Mathematics · 03/11/2020

9. ### Help with applying Newton's second law...?

...s Second: a = drag acceleration - gravitational acceleration dv/dt = kv² - g = k *(v² - g/ k ) → for quadratic case which is a first-order nonlinear...

1 Answers · Science & Mathematics · 08/11/2020

10. ### How Far Does The Box Travel?

...) becomes friction work: Mgh + ½Mv² = µ k *Mg*(dcosΘ + x) where h = 0.680 m and v = 1.4000 m/s and...

1 Answers · Science & Mathematics · 09/11/2020