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A cyclist uses 27,000 joules per minute (this is about 385 food Calories per hour) to cycle at a constant pedaling rate of 450 radians per minute along a flat road using a gear ratio of 4. Determine the torque exerted on the rear gear wheel.
A 2.0 mL syringe has an inner diameter of 6.0 mm, a needle inner diameter of 0.25mm, and a plunger pad diameter (where you place your finger) of 1.2cm. A nurse utilizes the syringe to inject medicine into a patient whose blood pressure is 140/100.
An instrument that uses 589-nm light has an antiglare coating of thickness 357 nm on a lens made of glass of index 1.55. Estimate what the index of the coating
In order to pass a physical fitness test, Marcella must run 1000 m at an average speed of 3.90 m/s. How much time does she have to run the last 750 m
a mass attached to a spring oscillates according to the equation xt 24sin16t 0.50 where x is in cm and t in seconds.
A shop sign weighing 230 N is supported by a uniform 115 N beam as shown in Fig. 9-54. find the vertical forces exerted by the hinge on the beam
662 kev photons are emitted as a result of the deay of 137cs the photon undergo compton scattering. what is the minimum energy of compton scattered photon? what is the max compton electron energy?
"Exciting news, a planet has been discovered orbiting the star closest to us on Earth. Under careful observation, the planet appears to have an average orbital radius of 1.3 A.U. and takes 2.1 years to complete one orbit around the star. What is the..
during morning jogging a man walks 10 turns of a rectangularground of length 30 metre and breadth 15 m in 15 minutes. what is his speed
A 1000Hz sound travels through pure oxygen. The wavelength of the sound is measured to be 0.65m. What is the speed of oxygen?
question1a car is stopped at a traffic light. it next travels along a straight road so that itsnbspdistance from the
When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 4.90 m. how far will the water travel horizontally
A curling stone with a mass of 7.00 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. What is the initial momentum
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