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An electron of mass 9.1 * 10^-31 kg is moving in the xy-plane; its speed is 2.0 * 10^5 m/s and its direction of motion makes an angle of 25 degrees with the x axis. What are the components of the momentum of the electron?
When an 82.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2 x 10^3 J. By how much does the potential energy of a 17 kg child increase when the child climbs a normal sta..
Find out the maximum height reached by the rocket.
With what velocity would they be separating after the collision.
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 4.79 liters of water? (1 liter is equivalent to 1.00 × 10-3 m3) (b) What is the net charge of all these electrons?
A net force of 32 N accelerates a 4.7-kg mass over a distance of 15 m. What is the total work done by this net force
As a result of the distribution illustrate what is scotts basis in the a/r and land, and explain how much gain or loss does he recognize?
Suppose a disk of radius R and mass M starts from rest at a height of 2.5m, What is the linear speed of the disk when it leaves the incline
During a thunderstorm, winds with a speed of 49.4 m/s blow across a flat roof with an area of 751 m2
The displacement of a standing wave on a string is given by D = 9.9 sin(0.55x)cos(56t), where x and D are in centimeters and t is in seconds. What is the distance (cm) between nodes
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?
This problem introduces the concept of tension. The instance is a rope, oriented vertically, that is being pulled from both ends. Let and (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope..
Two point charges q1= 5.00x10^-6C and q2= -3.0x10^-6C are located on x-axis at x1= -0.4m and x2=0.6m, Find the electric field and the electric potential at the origin
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