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A particle has a charge of 4.0 x 10-9 C. When it moves with a velocity v1 = 3.0 x 104 m/s at 45 degrees above the y-axis in the yz-plane, a uniform magnetic field exerts a force F1 along the -x-axis. When the particle moves with a velocity v2 = 2.0 x 104 m/s along the x-axis, there is a force F2 of 4.0 x 10-5N exerted on it along the y-axis. Calculate the magnitude and direction of the magnetic field.
An object is moving in simple harmonic motion with amplitude 0.28 m and total energy 2.5 J. What is the total energy of the system now
A chimp jumps up from a trampoline and lands on the ground, 1.2 meters below. the total time taken was .095 secons. what is the maximum height above the ground
A 27.0-kg child on a 1.00-m-long swing is released from rest when the ropes of the swing make an angle of 25.0° with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. m/s (b) If the actual speed of the child at the..
question a pyramid has a square base and four faces which are equilateral triangles. a charge q is placed on the center
A child is twirling a 0.0224-kg ball on a string in a horizontal circle whose radius is 0.104 m. The ball travels once around the circle in 0.350 s. Determine the centripetal force acting on the ball
five grams of nitrogen gas at an initial pressure of 3.0 atm and at 20 degrees c undergo an isobaric expansion until
Two loudspeakers placed 6.00 m apart are driven in phase by an audio oscillator having a frequency range from 1908 Hz to 2471 Hz, At what frequency of the oscillator does the sound reaching point P interfere constructively
A 6 uF capacitor is initially charged to 100V and then connected across a 600 ohm resistor. what is the initial charge on the capacitor
what is the average age of a bone that has 85 beta emissions per minute from a 20 g of carbon found in that fossil. half life time of carbon-14 is 5730 years
A beam of sunlight encounters a plate of crown glass at a 36.50° angle of incidence. Find the angle between the violet ray and the red ray
After a satellite is blown apart, the first part has speed v1 = 0.63c and the second one has a speed v2 = 0.91c. what is the mass of the second piece
A 1 kg block attached to a spring with force constant 25 N/m oscillates on a horizontal, frictionless air track. At t = 0, the block is released from rest at x = ?3 cm. (At that time the spring is compressed by 3 cm).
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