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Lydia proposes to send an interstellar probe off in stages. The first stage, traveling radially outward at 0.500 c relative to Earth, will send off a second stage traveling in the same direction as the first stage at a speed of 0.500 c relative to the first stage. Finally, the second stage will send off a third stage traveling in the same direction at 0.500 c relative to the second stage. Relative to Earth, the speed of the third stage will have a magnitude of?
A stick of uniform density with mass M = 7.8 kg and length L = 0.8 m is pivoted about an axle which is perpendicular to its length and located 0.11 m from one end. Ignore any friction between the stick and the axle. What is its angular speed as it ..
a new gaseous species has been made in the laboratory. the number of atoms in each molecule is unknown. measurements of
You are given a vector in the x y plane that has a magnitude of 86.0 units and a y component of -40.0 units. Assuming the x component is known to be positive, specify the vector V? which if you add it to the original one, would give a resultant vecto..
In an X-ray tube, electrons with energy 38 keV are incident on a cobalt (Z = 27) target. Compute the cutoff wavelength for X-ray production
A 15.0 kΩ resistor and a capacitor are connected in series and then a 12.0 V potential difference is suddenly applied across them. Find what is the time constant of the circuit
When light of wavelength 350 nm falls on a potassium surface, electrons are emitted having a maximum kinetic energy when the stopping voltage, Vs = 1.30 V. Find Work function of potassium and The cut-off wavelength.
You are standing on a platform and you throw a 5kg ball horizontally with a speed of 10m/s. Find the time it takes the ball to hit the ground
A flask disk 1.0 diameter is oriented so that the plane of the disk makes an angle of pi/6 radians with a uniform electric field. If the field strength is 147 N/C find the electric flux through the surface.
A small droplet of oil with mass of 3.04×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 5325 N/C
An object moves with constant acceleration 3.25 m/s2 and over a time interval reaches a final velocity of 10.2 m/s. What is the distance it travels during this interval
A skier travels down the trail. The slope is inclined at an angle of 22 degree and the coefficient of kinetic friction for the skier's shoes-ice surface is 0.2. Compute what the skier acceleration down the hill
A disoriented physics professor drives 3.32km north, then 4.72km west, and then 1.69km south. find the direction of the resultant displacement of this professor
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