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An electron in an oscilloscope tube is traveling horizontally with a speed of 4.4×10^6 m/s . It passes through a 1.9cm long region with an electric field pointing upward with a magnitude of 1400N/C .
(a) What is the magnitude of the electron's velocity when it emerges from the electric field region?
(b)What is the direction of the electron's velocity when it emerges from the electric field region? Angle?
A 5.50 kg ornament is hanging by a 1.40 m wire when it is suddenly hit by a 3.00 kg missile traveling horizontally at 12.0 m/s. What is the tension in the wire immediately after the collision
A rod of 2.0-m length and a square (2.0 mm × 2.0 mm) cross section is made of a material with a resistivity of 6.0 × 10-8 ? ? m. at what rate is heat generated in the rod
A dentist uses a small mirror of radius 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 14 mm from the tooth, what is the magnification of the resulting image.
A ball with a mass of 0.65 kg is dropped on a table. The initial height of the ball is 0.85 meters. Calculate the change in the momentum of the ball during its collision with the table
what are the angles among the cable supporting the load and the beam and between the cable supporting the beam and the beam?
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 ? 108 m. Find the time it took for his voice to reach earth via radio waves
A skier is initially stationary, but then accelerates at2.4 m/s2 down a hill that isinclined 23° below the horizontal. How far horizontally and vertically has the skier traveled in6 s?
Consider resistor= 20 ohms, capacitor= 6 microfarads, and a 50 mH inductor, At what frequency is the current a maximum and what is the maximum rms current
A commonly used method of fastening one part to another part is called "shrink fitting." A steel rod has a diameter of 2.0053 cm, By how many Celsius degrees should the rod be cooled
An ac generator has a frequency of 7.4 kHz and a voltage of 41 V. When an inductor is connected between the terminals of this generator, What is the inductance of the inductor
A box is at rest on a horizontal table. Is it because of the first law, second law, and or third law of motion that those two forces are equal
Which of the following is not true of all electromagnetic waves, only one answer is correct,
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