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A 0.13 kg meter stick is held perpendicular to a wall by a 2.7 m string going from the wall to the far end of the stick.
(a) Find the tension in the string.
(b) If a shorter string is used, will its tension be greater than, less than, or the same as that found in part (a)?
(c) Find the tension in a 1.6 m string.
Two masses of 5 kilogram and 10 kilogram and are connected by a compressed spring and rest on a frictionless table. compute what are the speeds of the two masses
A rescue helicopter is lifting a man (weight = 935 N) from a capsized boat by means of a cable and harness. What is the tension in the cable when the man is given an initial upward acceleration of 1.92 m/s2
Gas in a container expands at a constant pres- sure of 88 atm. Find the work done by the gas if the initial volume is 5 L and the final volume is 10 L . Answer in units of J
A proton (mass= 1.67×10-27 kilogram, charge= 1.6 × 10-19 C) travelling with speed 1 × 106 m/s enters a region of space containing a uniform magnetic field of 1.2 T. Find the time t required for the proton to re-emerge into the field-free region
A 125-kg sled is dragged by a team of dogs a distance of 2 km over a horizontal surface at a constant velocity. Find the work done by the team of dogs
A 3.00kg block starts from rest at the top of a 30.0 degree incline and slides a distance of 2.00m down the incline in 1.50s. Find (a)the magnitude of the acceleration of the block, (b) the coefficient of kinetic friction between block and plane, (c)..
The magnitude of the vector is 45.0 units and points in the direction 386 counter clockwise from the positive x-axis. Calculate the x-component of this vector.
The tension in the string when the ball is at the very bottom of the circle is 4.3 N. At the very bottom of the circle, a very sharp knife is suddenly inserted, to cut the string directly below point of support. How far to the right of where the s..
A car drives straight off the edge of a cliff that is 46 m high. How fast was the car traveling when it went over the cliff
Two cars have collided at right angles at an intersection: Car A was eastbound; car B was northbound. The marks on the pavement show that the vehicles both moved together in the same direction immediately after the collision. That direction was at..
You shoot an arrow into the air. Two seconds later arrow has gone straight upward to a height of 30 meters above its launch point. a) What was the arrow's initial speed? b) How long did it take for the arrow to first reach a height of 15 meters ab..
A 18-cm-long nichrome wire is connected across the terminals of a 1.5V battery. what is the wire's diameter
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