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Two motorcycle cops are positioned together on I35S. Each is capable of a maximum speed of 219 km/hr. They start from rest and uniformly accelerate to maximum speed over a distance of 2.2 km.
How far apart are they when they are both traveling at maximum speed?
ccccthe Zambesi river in Africa rushes over Victoria Falls at a rate of 25 x 10^6 gallons per minute. The falls are 108 m high, 1 gallon equals 3.785 x 10^-3 m^3 (or 0.1337 cubic foot), and the water has a density of 1.00 x 10^3 kg/m3 (each cubic foo..
A positively charged He+ atom has two protons in the nucleus and one electron in the shell. In a classic model of the atom, What is the radius of the orbit
A 13.9-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 66.5-N horizontal force. determine the rope\'s angle from the vertical
The satellite has an orbital period around the Earth that is the similar as that of the Moon, 27.3 days. How far away from the Earth must this satellite be placed.
Laser light of wavelength 633 nm is incident upon two narrow slits separated by 0.15 mm. how far apart are the interference fringes
Consider two masses m1 and m2 at the top of two frictionless inclined planes. Both masses start from rest at the same height. However, the plane on which m1 site is at an angle of 30 degrees with the horizontal,
A wheel is rotating freely at angular speed 490 rev/min on a shaft whose rotational inertia is negligible. A second wheel, initially at rest and with 5 times the rotational inertia of the first, is suddenly coupled to the same shaft. (a) What is the ..
In a certain particle accelerator, protons travel around a circular path of diameter D in an evacuated chamber, What is the mean free path of the gas molecules
suppose a 29.9-kg child sits 1.27 m to the left of center on the same seesaw as the problem you just solved in the
A 0.250-kg block oscillates on the end of a spring by a spring constant of 200N/m. If the system has energy of 6.90J, what is the amplitude of the oscillation?
A student draws the ray diagram shown in the figure but forgets to label the object, the image, which arrow represents the object, and which represents the image
Two skaters are studying collisions on an ice-covered(friction-less) lake. Skater 1, (m1=85 kg) is initiallytraveling with a speed of 5.0 m/s, and skater 2 (m2=120kg) is intially at rest. Skater 1 then "collides" with skater 2 and they lock arms an..
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