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Neutron stars consist only of neutrons and have unbelievably high densities. A typical radius and mass for a neutron star might be 1.3 x 103 m and 3.6 x 1028 kg.
(a) Calculate the density of such a star.
(b) If a dime (V = 2.0 x 10-7m3) were made from this substance, determine how much would it weight (in pounds)?
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The acceleration free-fall on the moon is 1/6 of its value on earth
Imagine that the force of gravity has been turned off, and we wish to keep the Moon in its current orbit around the Earth, using the electrostatic (Coulomb) interaction.
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is P1 = 2.00 104 Pa, Find the volume flow rate through the pipe
Water has a mass mole of 18.0g/mol, each water molecule(H20) has 10 elelctrons. What is net charge of all electrons? How many electrons are there in one liter (1.00 x10-3m-3) of water?
we have a tuning fork with a frequency f resonating in a cavity with an open top of width 2.54cm and a length of 20.4cm at 20 degrees celsius and one atm
A car travels a straight road at 120 km/h for 30 min. then at 90 km/h for 10 min. Find the average velocity and average speed for the entire trip
A rock is thrown from the top of a 30 m building at an angle of 47° above the horizontal. If the horizontal range of the throw is equal to the height of the building, with what speed was the rock thrown
The energy density of radiation is 5.75E-14 j/m^3. The speed of light is 2.99E8 m/s, Determine the the corresponding electric field amplitude
question1a piece of wire with mass per unit length 78 runs horizontally at right angles to a horizontal magnetic field.
a hike walks 4.5km in one direction, then makes a 45 degree turn to the right and walks another 6.4km. What is the magnitude of her displacement
A .450 kg ice puck, moving east with a speed of 3m/s, has a head-n collision with a .900 kg puck initially at rest. Assume a completely elastic collision, what will be the speed and direction of each object after collision.
A patients blood pressure is measured as 140 / 80, measured in level with the heart. What would you expect the blood pressure to be at the top of the head if there is a 45cm height difference in the two points. Density of blood is 100kmm-3. Give r..
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