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A construct force vector F = 2.0i + 4.0j N acts on an object as it means along a straight- line path. If the object is displacement is d = 2.0i + 5.0j m calculate the work done by vector F using these alternate ways of writing the dot product.
(A) Calculate the work done by vector F using these alternative ways of writing the dot product W = Fdcos(theta).
(B) Calculate the work done by vector F using these alternate ways of writing the dot product W = F_x dx + F_y dy.
A mass of 1.61kg stretches a vertical spring 0.31m. If the spring is stretched an additional 0.132m and released, how long does it take to reach (new) equilibrium position again.
A radar antenna is tracking a satellite orbiting the earth. At a certain time,the radar screen shows the satellite to be 162 km away.The radar antenna is pointing upward at the angle of 62.3 degrees from the ground.find the x and y components(in k..
A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. find The magnetic field at the center of this loop
A 840-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s, What is the average force exerted on the car
15. An object weighing 300 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. find the density of the object
You can launch the proton from the surface of a sphere of with charge Q and radius R, from the center of a ring of charge Q and radius R, or from the center of a disk of charge Q and radius R. Which is the best choice.
Two 1.5 V batteries connected in a series to a 5 ohm resistor produce a 0.7 A current Find the internal resistance of batteries
A straight, nonconducting plastic wire 8.50 cm long carries a charge density of +175 nC/m distributed uniformly along its length, Find the magnitude and direction of the electric field
Draw the free-body diagram of the system and find the value of the force F acting on the piston C.
The potential difference between the ends of a resistor is 9 V and the rate of energy dissipation in it is 18 W. What is the value of that resistor
If the player hears the sound of the splash 3.19 s later, illustrate what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.
At the top a giant 360 swing on the high bar, a 50 kg gymnast has a velocity of 1 m/s and he is 3.5 m about the ground, What is the gymnast's gravitational potential energy
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