In the figure here, a ball is thrown up onto a roof, landing 3.30 s later at height h = 20.0 m above the release level. The ball's path just before landing is angled at 0 = 58.0° with the roof. (a) Find the horizontal distance d it travels. (Hint: One way is to reverse the motion as if it is on a video.) What are the (b) magnitude and (c) angle (relative to the horizontal) of the ball's initial velocity?

Round to 3 sig figs.

How would you round 0.0189787745 to 4 significant figures?

Need help please

II. State whether each of the following measurements are reported correctly or incorrectly. 5) 75.5 + 0.6 6) 10.12 + 3.35 7) 9+1 8) 273 + 0.7 9) 273 + 0.75 10) 273.01 ± 1

In the figure a solid sphere of radius a = 2.40 cm is concentric with a spherical conducting shell of inner radius b = 2.00a and outer radius c = 2.40a. The sphere has a net uniform charge q, = + 6.98 fC; the shell has a net charge q2 = -q1. What is the magnitude of the electric field at radial distances (a) r = 0 cm, (b) r = a/2.00, (c) r = a, (d) r = 1.50a, (e) r = 2.30a, and (f) r = 3.50a? What is the net charge on the (g) inner and (h) outer surface of the shell? (a) Number i Units (b) Number i Units (c) Number i Units (d) Number Units (e) Number Units

Q.5. What could be the possible reasons for errors in measurements?

(in nm) is nano meters THz is Tera Hertz

t Eg=15N and Eo=l", Find Fymn The Smallest Possible Vahek Of minj ty in N Find Fxmar The largest possible Value or Fx, in N max

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