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Mercury flows through a horizontal pipe 1.05 cm in diameter and 1.3 m long. determine the rate of flow through the tube
Two blocks of masses m1 = 1.90 kg and m2 = 5.18 kg are each released from rest at a height of h = 5.15 m on a frictionless track, find the maximum height to which m1 rises after the collision
Two sound sources of 785.0Hz and 783.4Hz with the same intensity are played together. What do you hear and how frequently
If a 60.0 kg person slides down an incline angled 25%u02DA below the horizontal and friction IS present with a coefficient of kinetic friction equal to k = 0.450. What is the person's acceleration
For a huge luxury liner to move with constant velocity, its engines need to supply a forward thrust of 7.05 105 N. What is the magnitude of the resistive force
We used a 100g mass hung from the 10 cm mark on a meter stick. find the mass of the stick using method of torques
You are standing 5 m from a tractor when the operator starts it ip the intensity is 3 x10^-5 W/m^2. How much did the sound level change
A capacitor that is initially uncharged is connected in series with a resistor and an emf source with E=110V, What is the resistance of the resistor
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
A 0.458 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
Converting sunlight to electricity with solar cells has an efficiency of 15%. What is the theoretical maximum efficiency
the girl(mass 40kg) is pulling the sled(mass 10Kg) on the frictionless ice. what is the acceleration of the girl
An ideal spring is wrapped around a cylinder that is free to rotate with negligible friction about a stationary horizontal axis. Is independent of the moment of inertia of the cylinder
A disk spins with increasing angular velocity. Point Q on the disc is twice as far from the axis of rotation as in point P. Which point has the larger radial acceleration
Two balls attached to strings have the same mass and volume, but are made of different materials. Which ball excerts a geater net force on the block
The 210 A current through a spark plug moves 0.270 mC of charge. How long does the spark last
A 150kg uniform board 8m long is supported by two posts: one 1m from the left and the other 2m from the right. Find the forces on the supports
Gven the relationship between angular frequency and wave number derived from some wave equation, determine whether the system is dispersive or nondispersive
A planet's moon travels in an approximately circular orbit of radius 5.4 107 m with a period of 7 h 21 min. Calculate the mass of the planet from this information
a 40 g block of of ice is cooled to -72 C and then is added to 650 g of water in an 80 g copper calorimeter at a temperature of 24C, determine the final temperature of the system consisting of the ic
A fire hose must be able to shoot a stream of water a specified height, straight up. Calculate the gauge pressure (difference between actual pressure
A proton is at the origin and an electron is at the point x = 0.42 nm, y = 0.39 nm. Find the electric force on the proton
A viewing window in the Atlanta aquarium is 55 inches wide and 46 inches high. what is the outward force on the window
A surface encloses the charges q1=3.4uC , q2=7.0uC, and q3=-3.8uC. Find the electric flux through this surface
The length of the ice block is L1 = 0.00484 m and its temperature is T1 = -11.0 °C. The aluminum block is L2 = 0.00139 m long, Calculate the heat per second per square meter