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In a volcanic eruption, a 2400-kg boulder is thrown vertically upward into the air. At its highest point, it suddenly explodes into two fragments, one being three times the mass of the other. The lighter fragment starts out with only horizontal velocity and lands 274 m directly north of the point of the explosion. Where will the fragment land? Neglect any air resistance.
A sledge loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. How much work is done by the rope on the sledge
a hoop with a mass of 2.75 kg is rolling without slipping along a horizontal surface with a speed of 4.50 ms when it
what will a 20000 omegav meter read on its 1 v scale when attached to a 1 v source with an internal resistance of 10k?
The sound level in decibels is typically expressed as ? = 10 log (I/I0), but since sound is a pressure wave, the sound level can be expressed in terms of a pressure difference. Intensity depends on the amplitude squared, so the expression is ? = 2..
A 5.0-g bullet traveling horizontally at an unknown speed hits and embeds itself in a 0.195-kg block resting on a frictionless table, Determine the initial speed of the bullet
At Water-Country NH there is a ride called the "Double Geronimo" which is described as an "Extreme Body Slide". how fast would the rider be moving at the bottom of the slide
A mass spectrometer has an adjustable magnetic field. When themagnetic field is 7.000e-2 T, a singly ionized hydrogen atom (a proton) will strike the detector at a particular location. Suppose a triply-ionized carbon 12 atom, whose mass is by defi..
the landing speed of an airplane is dependent on the air density. by what percentage must the landing speed be
A particular guitar string is supposed to vibrate at 203 Hz, other than it is measured to actually vibrate at 208 Hz. By what percentage must the tension in the string be changed to get the frequency to the correct value.
the potential energy of a girder, after being lifted tothe top of a building, is 5.17 times 10^5 ft. lb. how high is the girder
Neptune has a mass of 1.02 1026 kg and a radius of 2.48 107 m. Assume it is a uniform solid sphere. What is the rotational kinetic energy of Neptune on its axis
a particle of mass 0.350 kg is attached to the 100 cm mark of a meter stick of mass 0.150 kg. the meter stick rotates
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