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1. ### A 2.38×104-kg rocket blasts off vertically from the earth's surface with a constant acceleration. During the motion considered in the pro...?

...a = 12.66 m/s^2 A) by v = u + at =>330 = 0 + 12.66 x t =>t = 26.06 sec B) Thrust (T) = ∆(mv)/∆t =>T = m x ∆v/∆t =>...

1 Answers · Science & Mathematics · 31/05/2020

2. ### Can you help me for my homework? Imagine you are 14 m away from the 5 m long wall. You want to deliver the apple to a child behind the wall.?

...vcos54* = 0.59v m/s & Vy = vsin54* = 0.81v m/s Let the apple take t sec to reach the wall, in t sec the apple shall also attain a height of (10 - 1.6 =) 8.4...

1 Answers · Science & Mathematics · 31/05/2020

3. ### Asymptote of Secant Function?

a. x + 1= π/2; x= π/2 - 1 period= 2π; half period= π x= π/2 - 1 +/- nπ, n= 1, 2, 3,... b. 3x + π/3= π/2; x= π/18period= 2π/3; half period= π/3x= π/18 +/- nπ/3, n= 1, 2, 3,...

1 Answers · Science & Mathematics · 31/05/2020

4. ### Gasoline is pouring into a cylindrical tank of radius 3ft. When the depth of the gasoline is 7ft the depth is increasing at 0.5 ft/sec.?

V = pi * r^2 * h r = 3 V = pi * 9 * h dV/dt = pi * 9 * dh/dt The depth doesn't matter dh/dt = 0.5 dV/dt = 9 * pi * 0.5 = 4.5 * pi Your calculator can do the rest.

2 Answers · Science & Mathematics · 29/05/2020

5. ### I feel like I cannot relate to my fiance anymore because of this lockdown?

Nothing you can do until she gets professional help. She also has to care too, you being frustrated is only the beginning.

3 Answers · Family & Relationships · 28/05/2020

6. ### angular acceleration problem?

a) angular velocity = d/dt(theta) = 2t + 6 t’2 = 2+6 = 8 rad/sec. b) angular acceleration = 2 + 12 t = 14 rad/ sec’2. c) at r =0.5 m, angular acceleration = 14 rad/sec’2 and tangential acceleration a = r xalpha = 0.5 x14 = 7 m/sec’2.

1 Answers · Science & Mathematics · 22/05/2020

7. ### A car traveling at 16 m/s accelerates at 2.21 m/s2 for 10 seconds. To the nearest meter how far does it travel?

distance d = V*t+a/2*t^2 = 16*10+2.21/2*10^2 = 271 m  final speed Vf = Vi+a*t = 15+1.37*8 = 26.0 m/sec

4 Answers · Science & Mathematics · 21/05/2020

8. ### What to do about getting kicked out over caronavirus?

1) This is going to sound very cruel - but whether your son is disabled or not he should not be going out with his friends during this time. Yes, I do agree with the sister about locking him out. She does...

14 Answers · Family & Relationships · 16/05/2020

9. ### Consider a freely spinning merry-go-round, which can be treated as a uniform disc of radius R and mass m1 rotating about a vertical?

4. Li = m2 v R/ 4  m2*v*R/4 = (½*m1*R² + m2*(R/4)²)*w for m1=m2=m, mass cancels; R somewhat cancels v/4 = (R/2 + R/16)*w 4v = (8R+R)*w = 9Rw w = 4v / 9R for v=6 R=12 w = 4*6 / 9*12...

1 Answers · Science & Mathematics · 13/05/2020

10. ### rockets velocity?

At any point after engine shutoff, KE + GPE = constant ½mv² - GmM/R = k and if we divide through by the rocket's mass m we get v²/2 - GM/R = k' and so when comparing two different states the mass is irrelevant. at 160 km...

1 Answers · Science & Mathematics · 12/05/2020