How do you use the equations
m=Minital + deltaM
and x=xinital + deltax
and F=-mg
to get x=(g/k)deltaM + ((Minital)(g)/k +xinital)
(where m= mass. Minital is fixed inital mass and deltaM is additional weight added)
(where x= displacement. xinital is when no...
a) Two objects attract each other with a gravitational force of magnitude 9.30 x10-9 N when separated by 19.4 cm. If the total mass of the objects is 5.06 kg, what is the mass of each?
Heavier mass_______kg
Lighter mass______ kg
my attempt:
F=Gm1m2/r^2
so I rearranged to get m1 and m2...
sorry its not sa its (2(alpha))
R is the range
tf is final time
so I did the part b and I got g=2h/(sin(theta)(tf)^2)...is this right? I still need help for the a)
I want to derive some physics equations from other equations.
a) How can I derive this formula:
R=Vo^2(sin(sα) / -a
from these two equations:
(1) x=(Vo cosα)t
(2) y=(Vo sinα)t + 1/2at^2
Things I know
- I think the way to do this is to isolate the variable t in equation (1) and...
Scaling and Proportion Physics problem. Please Help!?
1.
A flea is able to jump straight up about 0.44 m. It has been said that if a flea were as big as a human, it would be able to jump over a 100-story building! When an animal jumps, it converts work done in contracting muscles into...
it still says that my b value is wrong :(
I actually wrote the formula wrong for that but I put in the right values so it was supposed to look like.
u=m2gsintheta-m1a-m1g-m2a/m2gcostheta
= (9)(9.8)sin42-(4)(0.1622)-(4)(9.8)-(9)(0.1622)/(9)(9.8)cos42...
1. Homework Statement [/b]
Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 42.0°. The objects are released from...
Please check if my solutions are correct or if I am totally wrong. Thank you!
1. Homework Statement [/b]
In an experiment to measure the density of a steel ball. The diameter of the ball is d= 1.76 +- 0.02 cm and the mass to be m= 22 +- 1g. (include error calculations and report values with...
Please help, I am confused with part c and d.
1. Doug in a lab on Earth observes a π-meson is created 2.8 km from the surface of the Earth. It has a rest decay time is 9.0 x 10-6 s and it travels straight down to the Earth at 0.95c.
a) What distance would the π-meson measure to the lab...