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Two people hear a tornado siren, but one listener is 44.1 times farther away from the source of the sound than the other. What is the intensity level (in dB) at the farther listener relative to the other listener?
A vertical container with base area measuring 16 cm by 18 cm is being filled with identical pieces of candy, each with a volume of 50 mm3 and a mass of 0.020g. Suppose that the volume of the empty spaces between candies is negligible.
A paperweight, when weighed in air, has a weight of W = 7.4N. When completely immersed in water, though, it has a weight of Win water = 4.40 N. Find the volume of the paperweight.
Light of wavelength 540 nm is diffracted by a grating ruled with 1000 lines/cm. There are a total of 2000 lines in the grating. Find the angular deviation of the third order image.
When light with a wavelength of 206 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 2.57 x 10-19 J. find the wavelength (in nm) of light that should be used to double the maximum kinetic energy of ..
A uniform disk turns at 4.3 around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk.
Assuming that air resistance is simply a constant 91 N force on the person during the fall, identify the person’s velocity just be- fore hitting the net.
It compresses the spring, and then is pushed back in the opposite direction by the spring, eventually losing contact with the spring.
A 50.0 ball of clay traveling east at 8.00 collides and sticks together with a 40.0 ball of clay traveling north at 8.00. Illustrate what is the speed of the resulting ball of clay?
What is the magnitude of vertical component of its velocity as it strikes the ground.
Find out the vertical component of the reaction force
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
A uniform plank of length 4.3 m and weight 201 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x could a person who weighs 449 N walk on the overhanging part of the p..
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