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A dentist's drill starts from rest. After 3.00s of constantangular acceleration it turns at a rate of 2.20 x 10^4rev/min.
a) Find the drill's angular acceleration in rad/s^2
b) Determine the angle (in radians ) through which the drillrotates during this period.
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.70 kg. The mass of the hanging block is m= 2.90 kg. Find the direction of the hanging blo..
A cylinder with a movable piston contains 12.1 moles of a monatomic ideal gas at a pressure of 1.5 × 105 Pa. What is the change in volume of the gas
A string with a length of 0.5 meters is vibrating with a frequency of 100 Hz and it forms a standing wave at the fundamental mode with a velocity of 100 m/s. What is the new frequency of vibration on the sting
A Beryllium nucleus consists of 4 protons and 5 neutrons. What is the potenial at one of the corners due to the other 3 charges
A Venturi meter measures fluid speed in a pipe. A constriction (of cross-sectional area A2) is put in a pipe of normal cross-sectional area A1 (A1 = 2A2). Find the ratio of the flow speeds
A 7.0 k resistor is in series with a 26.0-mH inductor, Calculate the impedance of the circuit for the following source frequencies
The drawing shows an intravenous feeding. With the distance shown, nutrient solution (? = 1050 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood
a shopper pushes a grocery cart by exerting a force on the handle. if the force equal 76 N at an angle of 40.0 degrees below the horizontal, how much force is pushing the cart in the forward direction
A sphere of radius R and mass M is initially spinning about its center with a given angular velocity of omega. Find how far the sphere travels before it stops slipping
a prospective cohort study is run to estimate the incidence of stroke in persons 55 years and older. all participants
What is the lower radiated from a nichrome wire 1.0 m long and 1.5 mm in diameter at a temperature of 900? C? The emissivity of nichrome at this temperature is 0,092.
in a series LRC circuit the frequency at which the circuit is at resonance is f0, if you double the resistance, the inductance, what is the new resonance frequency
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