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To balance a very light rod when a down force is applied at a point 0.77m to the left of a supporting fulcrum (pivot point), What is the magnitude of the downward force
A mode-locked, titanium-sapphire laser has a wavelength of 850 nm and produces 100 million pulses of light each second. What is the average power produced by the laser
Gas in a container is at a pressure of 1.1 atm and a volume of 6.0 m3. What is the work done on the gas if it expands at constant pressure to twice its initial volume
A solid sphere rolls without slipping or sliding along a horizontal surface toward an incline. Calculate the kinetic energy of sphere as it rolls along the horizontal surface
What is the minimum uncertainty in position, in nm, of an electron whose velocity is known to be between 2.30×105m/s
A 40 cm long tube has a 40 cm long insert that can be pulled in and out. As the insert is slowly pulled out, What is the frequency of the tuning fork
Assume that light of a single color, rather than white light, passes through two slits 0.50 mm apart, determine the light's wavelength
A baseball is hit at Fenway Park in Boston at a point 0.626 m above home plate with an initial velocity of 31.00 m/s directed 50.0° above the horizontal. find the vertical distance by which the
Two parallel wires are 5 m long. They are seperated by a perpendicular distance of 1 cm and carry currents of 20 A, Find the interaction force between the wires
An AC series circuit has 12.0 ? resistance, 15.00 ? inductive reactance and 10.00 ? capacitive reactance. obtain the power output
A 116-rad dose of radiation is administered to a cancer patient (mass = 76) kg). how much energy is absorbed
The situation just described occurs when the plane is above a point on the ground that is two-thirds of the way from the antenna to your house. determine the wavelength of the radio waves?
A sample of helium behaves as an ideal gas as it is heated atconstant pressure from 273 K to 343 K. what is the mass of helium present
A projectile of mass 350-g is accelerated from rest at 8.25 m/s2 for 3.5s. Calculate how fast the ball and embedded projectile are after the collision
A container is filled to a depth of 25.0 cm with water. What is the absolute pressure at the bottom of the container
A 211kg rock sits in full sunlight on the edge of a cliff 4.90m high. The temperature of the rock is 30.2?C. what is the final temperature of the rock-water system
suppose the memebers of an orchestra are tuning up their instruments, whats's the speed of the wave along the violin string
If the asteroid fragment contains carbon, it may burn when entering Earth's atmosphere. Which type of chemical bond would result from this process
The maximum speed of a small girl on a swing is 3.96m/s. Calculate how high above the ground is she at her highest point
An ideal monatomic gas is contained in a vessel of constant volume 0.340 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, Find the specific heat of the gas
A thin rod of length 9.5 m and mass 16 kg is supported at a 28? incline. Find the normal force exerted on the rod by the lower support
Early in the morning, when the temperature is 5.0?C, gasoline is pumped into a car's 51-Lsteel gas tank until it is filled to the top. How much gasoline spills out in this case
You're an optometrist, mounting a projector at the back of your 4.2m -long exam room, 2.6 m above the floor. At what height should you center the pattern on the wall
A converging lens with a focal length of 6.00cmforms an image of a 4.00mm -tall real object that is to the left of the lens. Where are the object and image located
You hold a spherical salad bowl 80cm in front of your face with the bottom of the bowl facing you. What is the orientation is it erect or inverted