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A child on ice skates with a mass of 35 kg and a velocity of 7.5 m/s [S] undergoes a collision with a second child on ice skates with a of mass 45 kg and a velocity of 3.5 m/s [S30oE]. If the two children become entangled during the collision, determine their final velocity.
If an electron is confined to a region of size 43.0 nm, what is the minimum possible uncertainty in its momentum? 1.22E-27 kg * m/s The nucleus of a hydrogen atom is a single proton. What fraction of a hydrogen atom is occupied by the nucleus
Sources A and B emit long-range radio waves of wavelength 340 m, What is the magnitude of the phase difference at the detector
Consider two twins 25 years old. One twin steps on a spaceship (after studying physics in college), How old is each twin when she returns
You would like to shoot an orange out of a tree with your bow and arrow. What is the height of the arrow once it has travelled the 44.0 m horizontally to the tree
Two charged particles move in the same direction with respect to the same magnetic field. Particle 1 travels three times faster than particle 2. But, each particle experiences a magnetic force of the same magnitude. Discover the ratio q1/q2 of the ma..
A charge of +111 C is fixed at the center of a square that is 0.80 m on a side. How much work is done by the electric force as a charge of +8.1 C is moved from one corner of the square to any other empty corner?
A dollar bill is about 15.5 cm long. If ten trillion dollar bills were laid end to end around the Earth's equator, how many times would they encircle the planet
A 50cm long non-conducting cylinder of radius 4cm has a volume charge density of 30 uC/m^3. A grounded conducting cylindrical shell of radius 6cm is placed concentrically around the charged cylinder.
Electrons are accelerated from rest through an electric potential difference of 250kV, then the potential difference is changed to 60kV. What is the ratio of the two de Broglie wavelengths produced by the electron
A 4.25g bullet traveling horizontally with a velocity of magnitude 375m/s is fired into a wooden block with mass 1.10kg , How fast is the block moving just after the bullet emerges from it
A vertical containery with base area measuring 14.0 cm by 17.0 cm is being filled with identical pieces of candy, each witha volume of 46.0 mm3 and a mass of 0.0208 g.
What is the magnitude of the electric field at point P? What is the polar direction (angle) of the field at point P, in degrees?
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