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Q1. A camping lamp is suspended by two unequal lengths of string attached to opposite points on a tent's frame. The longer string exerts a force (tension) of 9 N on the lamp while the shorter one exerts a force of 13 N. The longer string is inclined at 65 degrees to vertical, the shorter one at 39 degrees. Show that the horizontal resultant of these two forces on the lamp is zero. Work out the weight of the lamp.
Q2. A hiker makes four straight-line walks A 11 km at 80? B 22 km at 282? C 29 km at 36? D 18 km at 283? How far from the starting point is the hiker after these four legs of hike?
When a pulse is amplified in a linear amplifier, the charge carrier transmit time can cause.
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotation beam sweeps across the earth, & the earth receives a pulse of radio waves. ..
Find the surface tension force on water inside a tube and height to which the water rises in the tube.
What is wave number
A child goes down a playground slide with an acceleration of 1.22. Find out the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 31.0 below the horizontal.
A ship has a mass of 40000 kg. its energy gives it an acceleration of 0.27 m/s while it travels a distance of 105 meters from rest. what force does the engine exert on the ship.
Evaluate the stability of of Na in the NaCl structure
A 56.0 resistor is connected in parallel with a 117.0 resistor. This parallel group is connected in series with the 27.0 resistor. The total combination is connected across a 15.0 V battery. What is the current of the 117 resistor? What is the power ..
A 2.0 kg ball swings in a vertical circle on the end of an 80cm long string. Calculate the speed, magnitude and direction of acceleration
A mass of 1.60 kg stretches a vertical spring 0.335 m. If the spring is stretched an additional 0.164 m and released, how long does it take to reach the (new) equilibrium position again.
Two boats start together and race across a 46 km wide lake and back. Boat A goes across at 44 km/h and returns at 48 km/h. Boat B goes across at 27 km/h, and its crew, realizing how far behind it is getting, returns at 69 km/h. Turnaround times are n..
Compute an inductance of the sensor for air gaps
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