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A 2.0-kg object is moving without friction along the x-axis. The potential energy curve as a function of position is shown in the figure, and the system is conservative. If the speed of the object at the origin is 4.0 m/s, what will be its speed at 7.0 m along the +x-axis?
A surveyor starts at the southeast corner of a lot and charts the following displacements: A = 600 m, N; B = 400 m, W; C = 200 m, S; and D = 100 m, E. What is the net displacement from the starting point
three point charges are located on a circular arc as shown. a what is the total electric field at p the center of the
A slide projector needs to create a 97 cm high image of a 2.0 cm tall slide, How far should you place the lens from the slide
A 1500 kg car traveling at 90 km/h east collides with a 3000 kg cartraveling at 60 km/h south. What is the direction of motion of the cars after collision
There are two long parallel straight wires carrying identical currents and separated by a distance of 2a. Integrate Maxwell's stress tensor over a plane surface located half-way between the wries to find the magnetic force per unit length acting betw..
In order to double check your conclusions about this gas's properties, you decide to predict how many hydrogen atoms are in the third excited state, relative to the 1st excited state (which you can then subsequently compare to measured values). L..
A 62 kg student is standing atop a spring in an elevator that is accelerating upward at 3.3 m/s^2, By how much is the spring compressed
What is the resultant vector, R, obtained by adding vectors C and D? Express the magnitude to three significant figures. Express the angle to one decimal place.
a small diameter 61-cm long solenoid has 280 turns and is connected in series with a resistor of 184 ohm. calculate
A golf club striking a golf ball imparts a force of2100N over a time of 3.26×103s at an angle of 35.0 degree above the horizontal. With what speed does the ball leave the club head after impact
Initially at rest, a small copper sphere with a mass of 2.77·10^-6 kg, What is the radius of curvature of the sphere's motion in the magnetic field
A helicopter rises vertically with a constant upward acceleration of 0.38 m/s^2 . As it passes an altitude of 20m , a wrench slips out the door. How soon does the wrench hit the ground? At what speed does the wrench hit the ground?
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