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A large wrecking ball is held in place by two light steel cables (Fig. 5.43). If the mass m of the wrecking ball is 4090 kg, what are
(a) The tension TB in the cable that makes an angle of 40° with the vertical and
(b) The tension TA in the horizontal cable?
A stone is thrown upwards with an initial velocity of 60 km/h. Calculate the maxiumum height from the ground
two boxes a and b are connected by a lightweight cord disregard the mass of the cord. box a has a mass of 5.0 kg and
Once can set up a two-dimensional scattering theory that could be applied to puck projectiles sliding on an ice rink and colliding with various target obstacles.
The gastrocnemius muscle heads pull on the Achilles tendon with two forces F1 and F2 as shown. What are the magnitude and direction (relative to horizontal) of the resultant : (net) force acting on the tendon?
If 200 J of heat is removed from a hot reservoir at 800 K by an engine cycle, what is the minimum amount of heat that the cycle must dump into a cold reservoir at 300 K
A 13.0-kg object undergoes an acceleration of 1.5 m/s^2. What is the magnitude of the resultant force acting on it
A car's starter draws 50A from the car's battery when starting up. If the start up time is 1.5s, how much electrons pass a location in the circuit during the time
Two parallel plates, 6.45 cm on a side, are separated by 5.32 mm. Determine their capacitance if the volume from one plate to midplane is filled with a material of dielectric constant 2.55 and the rest is filled with a different material of dielect..
A 4 µF capacitor is charged to a potential di?erence of 14 V. What is the capacitance of the second capacitor
It's generally okay to ignore relativistic effects when a particle's speed is less than 1.0% of the speed of light, Find the accelerating potential difference that will bring electrons to that speed, starting from rest
the m777 lightweight 155mm howitzer is a piece of artillery whose rounds are ejected from the gun with a speed of
TV-reception antennas for VHF (channels 2 through 13) are constructed with cross wires supported at their centers, What is the frequency for channel 4
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