Recent content by Mary1910

Homework Statement A magnetic field of 0.0200 T (up) is created in a region. a) Find the initial magnetic force on an electron initially moving at 5.00 x 10^6 m/s (N) in the field. b) What is the radius of the circular path? Make a sketch showing the path of the electron. Homework...

Thanks, and sorry for my lack of clarity.

1. Homework Statement . This question is based on an experiment to determine the mass of ASA. Information from the experiment : • ASA is a weak acid with a Ka value of 3.2 x 10^-4. • An ASA tablet has an approximate mass of 500 g. • The experiment used a titration with a standardized 0.100...

Would a formula for planet/celestial orbit work for part c? Such as K=G(m1+m2) / (4π^2)

I can't find any other formulas related to acceleration to solve this type of problem. Would it work if I solve for velocity and then divide velocity by time? Although, with this question I don't know if that would work either. Was part a) correct?

Homework Statement A satellite is designed to orbit Earth at an altitude above its surface that will place it in a gravitational field with a strength of 4.5 N/kg. a) Calculate the distance above the surface of Earth at which the satellite must orbit b) Assuming the orbit is circular...

Thanks

Thanks, and yes the Kepler constants for the other four moons were very close to the result I have for the first moon. Question b) In this problem asked me to find the average K value for all four moons. I then added all four together and then divided by four to have 1.47 x 10^14 m3/s2. In...

Homework Statement Determine Kepler's third-law constant Ku for Uranus using the data for the first four moons. Homework Equations [/B] (r)^3/(T)^2 = K Data: Moon #1 (Ophelia) r=5.38 x 10^4 km T=0.375 Earth Days The Attempt at a Solution [/B] I know the question asks for the K constant...

Hey I have another question about a similar problem if I could get some help that would be great, Homework Statement Solve for x. 8x^3+4x^2-18x-9 Homework Equations find possible values for x So oddly this is the part that has got me. First I know that there is a max of three zeros...

Okay so there are 3 roots and they are x=2, x=1, and x=-3/2. I see where I had made errors before in my calculations. The only part I still don't quite understand is how found x=-3/2 without factoring? Did you just use the value of (c) in x=-b±√b^2-4(a)(c) / 2(a) ??

Homework Statement Solve for x. a) 2x^3-3x^2-5x+6=0 Homework Equations -Find possible values of x -Divide that factor by 2x^3-3x^2-5+6 using long division The Attempt at a Solution ƒ(2)=2(2)^3-3(2)^2-5(2)+6 ƒ(2)=16-12-10+6 ƒ(2)=0 Now using long division divide 2x^3-3x^2-5x+6 by (x-2)...

Thank you! Could you just let me know if this is correct? b) J=Δp Δp=mΔv 4.0 x 10^3 N•s=70kgΔv Δv=(4.0 x 10^3 N•s)/(70kg) Δv=57m/s Ek=½mvf^2-½mvi^2 =½(70kg)(57m/s)^2-½(70kg)(0m/s)^2 =113715-0 =1.14 x 10^5 J F•d=ΔEk d=(ΔEk)/(F) =(1.14 x 10^5)/(1.14 x 10^4) =10m Therefore the barrel of the...

Human cannonballs have been a part of circuses for years. A human cannonball with a mass of 70kg experiences an impulse of 4.0 x 10^3 N•s for 0.35 s. a) Calculate the force acting on the human cannonball. F=(J)/(Δt) =(4000 N•s)/(0.35s) =11428.5 N =1.14 x 10^4 N b)How long was the barrel of...

Hooke's Law: F=-kx