Recent content by raisatantuico

So, is it just 6.3N/(9.8*1000kg/m^3) = 6.43x10^-4 m^3

Homework Statement An ore sample weights 17.50 N in air. When th sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.20 N. What is the total volume of the object? Homework Equations B = rho * volume displaced* g B= weight in air - weight...

is energy conserved in this problem? so we can equate energy at the peak and energy just before it is launched?

Homework Statement a projectile of mass m is launched vertically from the surface of Planet Islander at a speed that is one-third the escape speed from the surface. If the projectile reaches a maximum height that is a distance h from the surface of the planet, what is the radius of planet...

how did you get .05A? So if it is floating, mg=Buoyancy. mg=density x volume x g how do i get the mass if i don't know the density? Sorry, there are two unknowns still.. density and mass. i don't know how to get either with just the volume given

Homework Statement A rectangular bar of soap floats with 3.5 cm extending below the water surface and 1.5 cm above. what is its density? Homework Equations p(rho)=m/v The Attempt at a Solution I don't know how to compute the volume since we are given only two lengths. Athough...

f in the equation is force. torque= radius x force sin theta. net torque is also equal to angular acceleration x moment of inertia where does friction come in this defintion of torque?

Thanks! ended up with 156m = ∆s. i hope this is right. from what i understand, using the work other formula, we just consider the box and surface system. we just use the intial and final velocities of the box.

Homework Statement a solid metal ball of mass M and radius R is rolling without slipping down and incline. A static friction force of magnitude f is acting on the ball. What is the magnitude of the torque due to static friction? a.) zero b.) rfcos theta c.) rfsin theta d.)Rf e. MRF...

i am confused on how to use the conservation of momentum. so initial momentum is when the bullet hasnt hit the box yet, and the final momentum is when the bullet has hit the box? so m(bullet)xV(bullet) + m(box)xV(box)= (m bullet + m box)Vfinal then, in solving for the s displacement of the...

Homework Statement A bullet of mass 0.0800 kg is fired onto an empty box of mass 0.920 kg initially at rest. Upon hitting the box, the bullet has a speed of V= 900.0 m/s and is oriented horizontally. After hitting the box, the bullet passes through it and emerges with a speed of 1/2V. The box...