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Question: A small bead B is threaded on a large in-extensible string. The ends of the string are attached to two fixed points A and C on the same horizontal level. The bead is held in equilibrium by a horizontal force of magnitude 15N acting parallel to line AC. Given that Tan Ø = ¾ and angle BAC = Ø, Find (i) the tension in the string (ii) the mass of the Bead B correct to two decimal places. Take g=9.81
A lunar lander is descending toward the moon's surface. Until the lander reaches the surface, its height above the surface of the moon is given by y(t)=b - ct+dt2, What is the initial velocity of the lander
What is the wavelength of a photon emitted from a hydrogen atom as an electron drops from the m=5 energy level to the n=2 energy level?
A positron (q = +e) moves at 4.6 107 m/s in a magnetic field of magnitude 0.50 T. The magnetic force on the positron has magnitude 1.5 10-12 N. What is the angle between the velocity and the field
An electronics tech might work on an appliance while it is pluggedin, but she will take care that her resistance is 200,000; herrubber-soled shoes are 500,000; and the rubber mat on which shestands has a resistance of 1,000,000. What is the maximum h..
A gas is compressed from a volume V1 to a volume V2 by following the path shown in the diagram, P = P0 – CV, where C is a positive constant. What are the SI units of C? Decide the work done by the gas by integration.
A particle moving along the x-axis has its position explained by the function x =( 4.00 t3? 4.00 t+ 3.00 )m, where tis in s. At t= 3.00, what are the particle's (a) position, (b) velocity, and (c) acceleration?
Assume that the distance x measured in meters(m) is a function of initial speed Vo in meters per second (m/s), acceleration (a) in m/s^2, and time t in seconds. Show that the following formula is dimensionally correct.
Why does the emission spectrum of hydrogen or unknown source have a distinct line spectrum instead of a continuous one?
ice, liquid water, and water steam are three phases oof the same substance, meaning, what is the typical distance between water molecules in the liquid phase of water
When there is an input connected across a 12V DC source what is the voltage of the output voltage after the power is connected for a while
As the ball arrives at the bottom of the path, it leaves her hand with a speed of 25.0 m/s.
A rocket with mass 1000kg accelerates upwards at a rate of 20m/s (a) How long does it take before it is going at the speed of sound (334 m/s)? (b) How long does it take before the rocket is at a height of 100km?
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