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A 70,000 kg spaceship wants to orbit a tiny black hole at a height of 10,000 m. The force of gravity of the black hole on the spaceship is 50,000 N. What speed should the captain tell the computer to set the spaceship for?
find the minimum size of the snowshoes needed.
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. The block is accelerating upward at a rate of 1.22 m/s^2. What is the magnitude of the tension in the rope?
What is modify in frequency ff - fi
An artillery shell is launched on a flat, horizontal field at an angle of ? = 41.6° with respect to the horizontal and with an initial speed of v0= 327 m/s, What is the horizontal distance covered by the shell
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 40 km away.
A 1830 kg car traveling at 12.9 m/s collides with a 2980 kg car that is initally at rest at a stoplight. find the coefficient of kinetic friction between the cars and the road
A 2.40-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.20sin(2?t), Find the resonance angular frequency of the system
A 60 kg crate is lowered using arope over a fixed support. The rope exerts a constant upward forceof 500 N.? How fast is the crate traveling when it hits the floor
Suppose the peak of a particular star's spectrum occurs at about 6000 Å (Angstrom). (a) Use Wien's law to calculate the star's surface temperature. (b) If this star were a factor of four hotter, at what wavelength would its spectrum peak? In what ..
What is the wavelength of the waves produced on the wire.
A block of wood with volume V floats in water with 0.62V submerged. In oil the block floats with 0.86V of its volume submerged. Find the density of the wood
Helium forms a solid at low temperatures and high pressures. To maintain the order present in a solid, each atom must remain at its assigned position, Find the uncertainty in momentum of the helium atom
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