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Q1. A horizontal uniform bar of mass 2kg and length 3m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached the distance 0.7 m from the other end. A monkey of mass 1.00 kg walks from one end of the bar to the other. Find out the tension T_1 in string 1 at the moment that the monkey is halfway between the ends of the bar.
Q2. 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 above its launch point?
What is the main possible displacement of the shopper
A block with mass m = 19.0 kg slides down an inclined plane of slope angle 17.8 ° with a constant velocity. It is afterwards projected up the same plane with an initial speed 1.35 m/s. How far up the incline would the block move before coming to rest..
A loudspeaker of mass 21.0 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
The air-track carts in the figure are sliding to the right at 1.0 m/s. The spring between them has a spring constant of 120 N/m and is compressed 4.5 cm. Compute the speed of the air track carts held by a string together.
A 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. If the trampoline behaves like a spring of spring constant 6.2×104, how far does he depress it.
The linear impulse delivered by the hit of a boxer is 248 N • s during the 0.373 s of contact. What is the magnitude of the average force exerted on the glove by the other boxer? React in units of N
A ranger in a national park is driving at 24.0 mi/h when a deer jumps into the road 270 ft ahead of the vehicle. After a reaction time of t, ranger applies the brakes to produce an acceleration of a = -9.00 ft/s2. What is the greatest reaction tim..
Find the change in internal energy using first law of thermodynamics.
The stirrer is used to stir the mixture until it reaches its last equilibrium temperature of 32°C. Analyse the mass of the aluminum cup.
How to calculate the efficient canyon albedo
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
A hotel elevator ascends 170 m with a maximum speed of 5.9 m/s. Its acceleration and deceleration both have the magnitude of 1.5 m/s2.
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