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A 755 Newton person stands in the middle of a frozen pond of radius 10.0 meter. He is unable to get to the other side as of a lack of friction between his shoes and the ice. To overcome this complexity, he throws his 1.2 kilogram physics textbook horizontally toward the north shore at a speed of 10.0 m/s. Find how long does it take him to reach the south shore? s
A bat (see the image below) can detect very small objects, such as an insect whose length is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect the bat can detect
1 . a wooden box item sits on a horizontal wooden board. the coefficient of static friction between the box and the
a current of 2.78A slows in a straight wire segment of length 3.00cm i + 4.00cm j in a uniform magnetic field of strngth (2.50T).
If it takes 3.60 x10-13 s for a nitrogen molecule to hit the wall and rebound with the same speed but moving in an opposite direction (assumed to be the negative direction), what is the average acceleration of the molecule for the period of this t..
A hand grenade (m=580g) slides across the (essentially frictionless) floor at a speed of 0.86 m/s. determine the speed of the second fragment
The distance between the electron and proton in a hydrogen atom is 5.3 x10-11 m. Find the speed of the electron as it orbits the proton
A piece of sandston with a bulk volume of 1.3 cc is contained ina 5-cc cell filled with helium at 760 mm Hg. Temperature ismaintained constant and the cell is opened to another evacuatedcell the same volume.
A flashlight bulb operating at a voltage of 5.9 V has a resistance of 6 O. How many electrons pass through the bulb filament per second
A rod with an initial length of 4.67 m i heated from a temperature of 5 oC to 58 oC. What is the new total length of the rod
Let's build a helium atom. Start with a nucleus with 2 protons and 2 neutrons, Calculate the energy gained by the system constructing this atom
An electron and a proton move on concentric circular path in the plane of your paper, in a magnetic field that is perpendicular to the plane and is oriented towards you. Which particle follows the smaller circle
The top of a tower much like the leaning bell tower at Pisa, Italy, moves toward the south at an average rate of 1.4 mm/y, what is the average angular speed of the tower's top about its base
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