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The CGS unit for measuring the viscosity of a liquid is the poise (P): 1 P = 1 g/(s·cm). The SI unit for viscosity is the kg/(s·m). The viscosity of water at 0 C is 1.95×10-3 kg/(s·m). Express this viscosity in poise.
A projectile of mass 0.1kg travelling horizontally through the air with speed v(t) experiences a drag force D(t) whose magnitude is given by: D(t)=0.001[v(t)]^2. Calculate the speed of the projectile
A car is traveling at 50.0 mi/h on a horizontal highway. If the coefficient of static friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop
An object weighs 302 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 220 N. When it is immersed in oil, it weighs 257 N. what is the density of the object.
The Doppler effect using ultrasonic waves of frequency 2.25×10^6 Hz is used to monitor the heartbeat of a fetus. find the maximum velocity of the surface of the beating heart
The Earth has mass ME and average radius RE. Find an expression for the moment of inertia IE of the Earth on its axis in terms of the given parameters
When resistors 1 and 2 are connected in series, the equivalent resistance is 21.4 ?. When they are connected in parallel, the equivalent resistance is 4.08
An electron is shot upward directly perpendicular to the lower plate of a parallel plate capacitor. Its initial velocity is 3.0 x 104 m/s. What must be the potential of the upper plate if the electron stops just before reaching it? The lower plate..
A spherical drop of water carrying a charge of 35 pC has a potential of 540 V at its surface (with V = 0 atinfinity). What is the radius of the drop?
Studies of the relationship of the Sun to our galaxy-the Milky Way-have revealed that the Sun is located near the outer edge of the galactic disc, What is the period of the Sun's galactic motion
If two sound waves, one in air and one in (fresh) water are equal in intensity, what is the ratio of the pressure amplitude of the wave in water to that of the wave in air? Assume the water and the air are at 20°C.
The nuclear reaction that powers the sun is the fusion of four protons into a helium nucleus. How much energy is released in each fusion
A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 84 rad/s. The wheel is run at that angular velocity for 37 s and then power is shu..
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