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q1 the red giant betelgeuse has the surface temperature of 4000 rm k and is 500 times the diameter of our sun if our sun were that large we would be
q1 two ocean liners each with a mass of 38000 metric tons are moving on parallel courses 92 m apart what is the magnitude of the acceleration of one
q a hot wheels track has a spring loaded launcher a 100g car is pushed into the launcher which compresses the spring by 2cm the cars initial velocity
q1 after being accelerated to a speed of 17times10 5 ms the particle enters a uniform magnetic field of strength 100 t and travels in a circle of
q1 a cart starts from rest at the top of the tilted track assume the track is frictionless the cart passes photo gate a moving at speed 419 cms and
q1 if the create has a mass of 90 kg and is 16 m tall and 080 m in depth and width what is the minimum force needed to make the crate start tipping
q1 an important news announcement is trans- mitted by radio waves to people who are 122 km away sitting next to their radios and by sound waves to
q1 a 653 kg lift starts from rest it moves upward for 28 s with constant acceleration until it reaches a cruising speed of 185 ms what is an average
q1 a 220 g block is attached to a horizontal spring and executes simple harmonic motion with a period of 0150 s if the total energy of the system is
q1 suppose you discover a type ia supernova in a distant galaxy at maximum brilliance the supernova reaches an apparent magnitude of 10 how far away
q1 an underwater diver sees the sun 56 above parallelhow high is the sun above the horizon to a fisherman in a boat above the diverq2 you have a
q1 brass is an alloy made from copper and zinc a 59 kg brass sample at 98 c is dropped into 28 kg of water at 5 c if the equilibrium temperature is
q1 a solenoid is formed by winding 269 m of insulated silver wire around a hollow cylinder the turns are wound as closely as possible without
q1 what is the smallest thickness of a soap film n147 that will appear black if illuminated with 490 nm light suppose there is air on both sides of
q1 two point charges 210 and -640 are 0100 apart point is midway between them point is 0080 from and 0070 from take the electric potential to be
q1 a spring stiffness 900 nm and relaxed length 1m stands vertically on a table you hold a block of mass 1 kg barely touching the top of the spring
q1 a wheel 450 cm in diameter accelerates uniformly from 206rpm to 340 rpm in 70 s how far will a point on edge of the wheel have travelled in this
q1 a plane speeds up from 42 meters per second to 155meters per second in 57 seconds establish an average acceleration of the planeq2 the gravitation
q1 a typical major league fastball is thrown at about 99 mph and with a spin rate of 103 rpm if the distance between the pitchers point of release
q1 a 360-rm m-long 430 rm kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under
q1 the temperature of the glass surface of a 30 w light bulb is 75degc when the room temperature is 10degc estimate the temperature of a 150 w light
q1 consider a motor that exerts the constant torque of 250 n cdot m to a horizontal platform whose moment of inertia is 500 kg cdot m2 imagine that
q1 a 1250 n uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end a w 1960 n crate hangs from the far
q1 a box of books weighing 352 n moves with a constant velocity across the floor when it is pushed with a force of 448 n exerted downward at an angle
q1 to stretch a relaxed biceps muscle 28 cm requires a force of 25 n find out the youngs modulus for the muscle tissue assuming it to be the uniform