Recent content by mathcrzy

would those give me the velocity between the two plates?

What is each value? What is q, Vba, and M? Is M = 1.67e-27 kg ? And where does the KeV value go?

Homework Statement An electron acquires 3.01e-16 J of kinetic energy when it is accelerated by an electric field from plate A to plate B. What is the potential difference between the plates? _____V Homework Equations - (Wba / q ) = V The Attempt at a Solution - (3.01e-16 /...

Homework Statement What is the speed of a proton whose kinetic energy is 23.0 keV? 1 eV = 1.6e-19 J 23 Kev = 23000 eV = 3.68e-15 J Homework Equations V = Sq. Rt. ( - ((2)(q)(Vba)) / (m)) The Attempt at a Solution

Homework Statement How much work does the electric field do in moving a proton from a point with a potential of +95 V to a point where it is -37 V? Express your answer both in joules and electron volts. _____eV _____J Homework Equations deltaPE = q * Vba The Attempt at a Solution...

And that would be 50 * 10^-6 ?

Homework Statement An electron moving to the right at 3% the speed of light enters a uniform electric field parallel to its direction of motion. The electron is to be brought to rest in the space of 6.0cm. What is the strength of the field?______N/C Homework Equations F = q * E The...

Homework Statement Ultrasound waves are used to measure blood-flow speeds. Suppose a device emits sound at 450 kHz, and the speed of sound in human tissue is taken to be 1540 m/s. What is the expected beat frequency if blood is flowing normally in large leg arteries at 3.0 cm/s directly away...

i got the answer but just wondering how you got from: (deltaX - Vs·60)/Vs=deltaX/Vp to (deltaX/Vs) - (deltaX/Vp) = 60

Vp=deltaX/T VpT=deltaX T=deltaX/Vp Vs=deltaX/T+60 Vs(T+60)=deltaX VsT+Vs60=deltaX T=deltaX-Vs60/Vp deltaX-Vs60/Vp=deltaX/Vp deltaX-Vs60=deltaX deltaX=Vs60 Is this how you solve for deltaX

I=10 10=A^2 SquareRoot(10)=A A=3.16

Homework Statement Two earthquake waves of the same frequency travel through the same portion of the Earth, but one is carrying ten times the energy. What is the ratio of the amplitudes of the two waves? Homework Equations I=Intensity A=Amplitude P=Power I=A^2 The Attempt at...

Homework Statement Assuming typical speeds of 8.9 km/s and 5.8 km/s for P and S waves, respectively, how far away did the earthquake occur if a particular seismic station detects the arrival of these two types of waves 1.0 min apart? _____km Homework Equations v=(lamba)(f)...

elastic modulus for nylon is 5e9

so- (30000*9.8/1.7)/50e9=3.5e-6