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Question1
Jim's dog Sparky runs 45.0 northeast to a tree, then 70.0 west to a second tree, and finally 25.0 south to a third tree.
1) Compute Sparky's net displacement vector.
Enter the east and north components of the net displacement
2) estimate the magnitude of Sparky's net displacement. (Meters)
3) compute the direction of Sparky's net displacement (degrees)
Question2
System consists of two small bodies of masses m1 and m2 connected by a light outspread spring of spring cont. k. At time t= 0 the bodies are given initial velocities u1 and u2 and let fall under gravity. Find out the total momentum of the system as a function of time and position vector of CM w.r.t. the original position of the system. Ignore the air drag.
A charged sphere of radius 10 cm has a total charge of 5 C. Calculate the potential at the surface of the sphere
What is the magnitude of the torque about the point where the beam is bolted into place.
The police at the scene of the accident observed that the point of impact is 120 m from the base of the cliff. Explain how fast was the car traveling when it went over the cliff?
A wire with a current of 4.90 A is to be formed into a circular loop of one turn. what is the required radius
parallel plate capacitor has capacitance of 2.0 ?F and plate separation of 1.0 mm. What is the magnitude of the greatest charge
A double-concave lens has equal radii of curvature of 15.1 cm. An object placed 14.2 cm from the lens forms a virtual image 4.94 cm from the lens. What is the index of refraction of the lens material
In the diagram below, a student compresses the spring in a pop-up toy 0.020 meter. how much energy, in Joules, is being stored in the spring
In Anchorage, collisions of a vehicle with a moose are so common that they are referred to with the abbreviation MVC. What percent of the original kinetic energy is lost in the collision to other forms of energy
Two isotopes having the same mass number are known as isobars. Calculate the difference in binding energy per nucleon for the isobars 23/11 Na and 23/12 Mg
A rifle with a weight of 30 N fires a 3.0-g bullet with a speed of 240 m/s, Find the recoil speed of the rifle
An ac generator producing 10 V (rms) at 300 rad/s is connected in series with a 25-? resistor, The rms current in the circuit (in mA) is
A.) what is the average kinetic energy in joules of hydrogen atoms on the 5,500 degree celcius surface of the sun B.) What is the average KEof helium atomsin a region
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