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An electron with a speed of 5.74 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.62 × 103 N/C, traveling along a field line in the direction that retards its motion.
(a) How far will the electron travel in the field before stopping momentarily, and
(b) how much time will have elapsed?
The springs of a 1300 {rm kg} car compress 6.0 {rm mm} when its 62 {rm kg} driver gets into the driver's seat. If the car goes over a bump, what would be the frequency of vibrations.
Using a 677-nm wavelength laser, you form the diffraction pattern of a 0.113-mm wide slit on a screen. How far is the screen located from the slit
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. find the speed of the sled right before the team jumps on the sled
A 151 kg car rounds a curve of radius 163 m at 46 m/s. The acceleration of gravity is 9.8 m/s2 . What force must the road exert on its tires to hold the car on course? find out its speed when it has moved?
The bones a a saber-toothed tiger are found to have an activity per gram of carbon that is 14.5 % of what would be found in a similar live animal. How old are these bones
An equilateral triangle has sides of lengthL. Charges of +Q,-2Q,and +3Q are placed at the vertices. Find the electric field midway between the two positive charges
Suppose a 5.40 m diameter telescope were constructed on the Moon, what minimum separation between two objects
A child throws a snowball over a wall. The horizontal distance which the snowball travels is 3.83 m. Determine the initial speed of the snowball
An instructor wants to use a lens to project the real image of a light bulb onto a screen 1.23 m from the bulb. In order to get the image to be two times as large as bulb, what focal length lens will be required.
What happens when a proton moves parallel to a magnetic field and when a proton moves perpendicular to a magnetic field
A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 18.9 m/s directly upward. How long does it take to reach the maximum height
Calculate the mass flow rate (in grams per second) of blood (? = 1.0 g/cm3) in an aorta with a cross-sectional area of 2.0 cm2 if the flow speed is 30 cm/s
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