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A 4.0 kilogram mass has a velocity of 4m/s ,east when it explodes into two 2 kilogram masses. After the explosion one of the masses has a velocity of 3m/s at an angle of 60o north of east. Find the magnitude of the velocity of the other mass after explosion?
A particle with charge q is at rest when a magnetic field is suddenly turned on. The field points in the z-direction. What is the direction of the net force acting on the charged particle?
a copper wire has diameter 0.140mm and length 11.0cm . its in a horizontal plane and carries a current of 2.35a . the
Maximum Range of a Projectile
a lamp is suspended by a massless string from the ceiling of a descending elevator which decelerates at 1.7 ms2. if the
An ideal spring with a spring constant of 16 N/m is suspended vertically. What is the extension of the spring when the speed is a maximum
The electric field 2.0 cm from a small object points away from the object with a strength of 270,000 nC. What is the objects charge
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and compute distance covered by the object between times t1 = 5.5 s and t2 = 7.9 s after it is released.
A projectile is shot straight up from the earth's surface at a speed of 1.20×10^4 km/hr. How high does it go
A baseball is hit with a speed of 30ms-1 at an angle of 40degrees. It land`s on the flat roof of a nearby building with a height of 14 m. If the ball was hit when it was 1.40 m above the ground, what horizontal distance does it travel before it la..
Consider a solution to Schrodinger's time independent equation-\(\psi(x)=Ae^{-\alpha(x^{2})}\)
A communications satellite is a solid cylinder with mass 1135 kg, diameter 0.91 m, and length 1.75 m. Calculate the satellite's rotational kinetic energy about the rotation axis
A proton traveling 3.0 E 6 m/s enters half way in a capacitor and travels 2.00 E -3 meters before crashing into the bottom plate, What is the voltage applied to the capacitor from the battery
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