Recent content by xswtxoj

If the pendulum is too long and the ball hits the top of the catcher really hard before imbedding itself in the catcher, will intial veloctiy be larger or smaller once its calculated?

I was wondering if the bearing is too tight, how would the initial of the ball be affected during a momentum collision? Would the actual velocity be larger/smaller?

Homework Statement A plane flies from base camp to lake A, a distance of 280km, at a direction of 20 degrees north of east. After dropping thr supplies, it flies to lake B which is 190km and 30 degrees west of north from lake A. Determine the distance and direction gtom lake B to the base...

Are the irregularities of the either object close to or greater than the uncertainty of the ruler?

do the densities of the cylinder/wire have the same number of dig figs? if u round up the densities of the one that has more significant figures to have the same number of significant figures of the other, are they different?

If the cylinder and wire are made of the same material, then their densities should be the same or different? I think its different due to the mass of the object

Inductor since The instantaneous voltage across the inductor VL leads the instantaneous current by 90 degrees. Is that the reason?

Homework Statement The inductance is 0 in the RLC Circuit. the rms voltage across the genreator and the resistor are 45, and 24V. Wats the voltage across the capacitor? Homework Equations Vrms= Vmax/ Sq rt 2 V c = IX c , The Attempt at a Solution V= I/R I= V/R 24/45= 8/15A...

Homework Statement The critical angle of a certain plastic in air is 37.3 degrees. Wats the critical angle of the same plastic if its immersed in water? Homework Equations n1sin( theta)= n2sin(theta) The Attempt at a Solution Nair= 1.00 1.00sin37.3/1.33 = sin(theta) sin(theta)=...

oh i mean -30cm for r

so base on what was corrected the answer is -1/15cm is how far is the image from the mirror, and what is the radius of curavature of the mirror is f= r/2 r=f*2 -1/15*2= -2/15cm?

1. if a impedance at 192 ,phase angle -75, resistor 49.7, wat missing in this circuit? A inductor or capacitor? Can it be a inductor?

do i inverse sin 2.10 E -3? I'm nto quick sure what to do?

Homework Statement An object is placed 15cm from a certain mirror, the image is half the size of the object, upright, and virtual. how far is the image fromt he mirror, and what is the radius of curavature of the mirror? Homework Equations 1/f = 1/p + 1/q f= r/2 The Attempt at a...

Homework Statement A laser 632.8nm is sent through a single slit of widith 0.30 mm. Wats the width of the central maximum on a screen 1.0m in the back of the slit? Homework Equations asin(theta) = m lamda The Attempt at a Solution lamda: 632.8nm 0.30 mm= 3.0 x 10^-4 m...