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A 60kg astronaut is on a space walk away from the shuttle whenthe tether line breaks. She is able to throw her 10kg oxygentank away from the direction of the shuttle with a velocity of12.0m/s to propel herself back to the shuttle. Assume thatshe starts from rest(relative to the shuttle), determine the maximum distance she can be from the craft when the line breaks andstill return within 60 seconds(the amount of time that she can holdher breath).
A camera flash delivers 2.9 kW of light power for 1.3 ms. Find the total momentum carried by the flash
A beam used in construction is made of steel, which has a coefficient of linear expansion of 1.3 × 10-5 K-1. find the change in the length of the beam due to cooling
in fair weather over flat ground there may be a downward electric field of 155 nc. a assume that the earth is a
A car of mass M= 900-kg travelling at 45.0 kmh enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between road and car's tires.
An electron is moving in a concentric circular orbit inside a solenoid of radius 4.89 cm, in such a manner that it grazes the inside surface of the coil at all the points of its orbit. What electric current is passing through the solenoid
if 60 of u.s. petroleum use goes for transportation and 1 of this goes for buses how much oil could be saved per year
an archer puts a 0.30-kg arrow to the bowstring. an average force of 201 n is exerted to draw the string back 1.3 m.
You send a beam of light from a material with index of refraction 1.19 into an unkown material. In order to help identify this material, What is the index of refraction of the unknown material
A mass of 0.25 kg is attached to a horizontal spring with a spring constant of 4.0 N/m. Write an expression for the position of the mass as a function of time
The pressure in ideal gas is cut in half slowly, while being kept in a container with rigid walls. In the process, 265 kJ of heat left the gas (a) how much work was done during the process. (b) what was the change in internal energy of the gas dur..
An ac generator with a frequency of 29.4 Hz and an rms voltage of 12.0 V is connected to a 49.5-µF capacitor. What is the maximum current in this circuit?
When the door of the Chapel of the Mausoleum in Hamilton, Scotland, is slammed shut, If that echo were due to a single reflection off a wall opposite the door, how far from the door would that wall be
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