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If a Joe pulls a 37-kg crate at a 0.62 m/s^2 using a horizontal strap, when 250N of friction acts on it, what is the Tension in the strap? (Draw a free body diagram. Next, before calculating anything, give a description of the resulting motion. Finally determine a numerical answer.)
If a person radiates about 67 W of power at room temperature, how long does it take for a person to radiate away the energy acquired by consuming a 260 Calorie donut?
What is the minimum speed the electron could have after the collision? The allowed energies of a simple atom are 0.0 eV, 5.5eV and 9.0eV
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.1 kg and the sign has a mass of ms = 16.6 kg. What is the net force the hinge exerts on the beam
the power company charges 10 cents per kilowatt-hour, explain how much will it cost to leave the bulb on for 30 days? Show your work.
What minimumdistance are they from each other? The angle may be too large to use small angle approximation. suppose in units of m.
A pair of power transmission lines each have a 0.800 ? resistance and carry 694 A over 9.14 km. If the rms input voltage is 38.1 kV. Calculate the power loss in the lines
A 71.6-kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 10.0 m, Calculate the maximum acceleration experienced by the jumper
A rotating wheel requires 3.03-s to rotate through 37.0 revolutions. Its angular speed at the end of the 3.03-s interval is 99.0 rad/s
The rotor (flywheel) of a toy gyroscope has mass 0.140 kg. Its moment of inertia about its axis is The mass of the frame is 0.0250 kg. Find the upward force exerted by the pivot
The escape speed from the Earth is 1.12 × 10^4 m/s, so a gas molecule traveling away from Earth near the outer boundary of the Earth's atmosphere would, at this speed, be able to escape from Earth's gravitational field.
A rectangular fish tank measures 30 cm by 65 cm by 40 cm high. What is the total force of the water on the bottom
The carbon isotope 14-C is used for carbon dating of archeological artifacts. What is the recoil speed of the nucleus
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