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An adventurous archaeologist crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (See the figure). The rope will break if the tension in it exceeds 3.00×104 N . Our hero’s mass is 70.0 kg. If the angle is 10.0, find the tension in the rope. Start with a free-body diagram of the archaeologist. What is the smallest value the angle can have if the rope is not to break?
A singly ionized Nickel atom has an overall charge of 1.602 x 10^-19C and a mass m = 9.80 x 10^-26 g. what will the radius of the curved path that the Nickel atom has within the deflection chamber be
A uniform, thin, solid door has height 2.40 m, width 0.900 m, and mass 22.5 kg. Find its moment of inertia for rotation on its hinges
What is the speed and total energy of an electron whose kinetic energy is 3 times its rest energy
question1a hiker makes four straight-line walks a 20 km at 274o b 12km at 48onbspc 33 km at 150onbspd 30km at 20onbspin
Calculate the work done by 0.935 mol of an ideal gas when it expands isothermally from 225 bars to 1.71 bars at (a) 300 K and (b) 1000 K.
A thin spherical shell has a radius of 1.70 m. An applied torque of 920 N m imparts to the shell an angular acceleration equal to 6.70 rad/s2 about an axis through the center of the shell. What is the rotational inertia of the shell
A 270 pF capacitor is charged to a potential difference of 60 V, and the charging battery is disconnected. Calculate the dielectric constant of the inserted material
suppose we measure the resistance from one hand to the other and find it to be 2 kilo ohms. What is the resistivity of skin
At some distance from a point charge, the electric potential is 618.0 V and the magni- tude of the electric field is 160.0 N/C. Determine the distance from the charge
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. What is the initial energy stored in the inductor
A dog searching for a bone walks 3.00 m south, then 8.20 m at an angle 30.0° north of east, and finally 14.0 m west. Find out the dog's resultant displacement vector using graphical techniques.
Two 42 ohm resistors are connected in series to a 12 volt battery. What is the current through the circuit
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