Recent content by maxtheminawes

yes it's equilateral

Homework Statement Three point charges are located at the corners of an equilateral triangle as in the figure below. calculate the net electric force on the 7-nc charge. Each sides are .5 m. (q1=7μc) (q2=2 μc) (q3= -4 μc) ___1 __/__\ 2/____\3 Homework...

Homework Statement 2cos^2 4x-1=0 a)x= pi/16 x=3pi/16 Homework Equations The Attempt at a Solution a) x=pi/16 u=cosx v=4x 2u^2 v-1=0 i'm stuck here

Homework Statement Prove this statement. (1+sinx)(1-sinx)=cos^2 Homework Equations sin^2x+cos^2x=1 The Attempt at a Solution statement Reason (1+sinx)(1-sinx) Given 1^2-sinx+sinx+sinx^2 GCF 1+sinx^2...

ok, i redid the problem a)y=1/2(-9.8)(1.01^2) y=5m c)x=1.41 y=5 sqrt of (1.41^2+5^2)=5.2m is this correct?

i really have no clue. is it constant. i know that acc downwards is -9.8m/s^2

Homework Statement Flopping about in pain, Augustine starts rolling across the beach at a constant 1.4m/s. This isn’t Augustine’s day as he now rolls into a hole somebody had just dug for a new septic tank. If it takes him 1.01s to hit the bottom of the hole: a)How deep is the hole? b)what...

Homework Statement Augustine continues to run around. He gets to the park and has the overwhelming urge to jump off a cliff and try to fly. He does so at an angle of 50 degrees to the horizontal while running at 14.5m/s. With his arms flapping, he rises in the air. a) what is the highest...

ok, i retried the problem. is this right? x=vt 150=35cos40t t=5.59 sec y=Voyt+1/2at^2 y=35sin40(5.59)+1/2(-9.8)(5.59^2) y=27.35m

i got : tan ^-1(63.25/-22.19)= -70.67 this angle lies in the 4th quandrant. did i do something wrong?

for Rx i got -22.19. so, the acc angle is the same as the force angle

Homework Statement James Bond job is to aim at clifftop cannons at attacking vessels coming from the sea. In one practice exercise he shoots her cannon at an angle of 40 degrees, giving the cannon ball a velocity of 35m/s. If the cannon ball lands 150m from the base of the cliff, how high is...

1)For the first one I got144.23 N. For angle, tan-1(63.25/-22.19)=-70.67+360=289.33deg. Not really sure if it's correct though 2)I didn't lnow there had to be angle for acceleration. Is it 45, 110, and 200deg?not sure.

Homework Statement Bob has reached the special time in his life and runs horizontally off the edge of a cliff at 4.2 m/s. If the top of the cliff is 110m above the surface of the ocean, how long does it take Bob to reach the water? Homework Equations Y=Vot+1/2at^2 Y=height t=time...

How do you do the square root of a negative? I'm assuming you just make it positive but I'm not sure.