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A 3.40-kg particle moves along the x axis. Its position varies with time according to x = t + 3.0t3, where x is in meters and t is in seconds.
(a) Find the kinetic energy of the particle at any time t. (Use the following as necessary: t.)
(b) Find the magnitude of the acceleration of the particle and the force acting on it at time t. (Use the following as necessary: t.)
(c) Find the power being delivered to the particle at time t. (Use the following as necessary: t.)
(d) Find the work done on the particle in the interval t = 0 to t = 4.50 s.
You are standing at x=9.0km Lightning bolt 1 at x=0km and lightning bolt 2 at x=12.0km Both flashes reach your eye at the same time. what is the time difference between the two flashes
a 104 w lightbulb has a resistance of about 12 when cold 20degc and 137 when on hot. estimate the temperature of the
A copper rod has a length of 1.4 m and a cross-sectional area of 3.8 10-4 m2. One end of the rod is in contact with boiling water and the other with a mixture of ice and water. What is the mass of ice per second that melts
You pull upward on a stuffed suitcase with a force of 150 Newton, and it accelerates upward at 0.720 m/s2. Determine What is the weight of the suitcase
Two identical piano wires have a fundamental frequency of 699 Hertz when kept under the same tension. Find what fractional increase in the tension of one wire
A container with a one-liter capacity at 27 degrees C is filled with helium to a pressure of 2 atm. (1 atm = 1.0x10^5 N/m^2.) How many moles of helium does it hold
If the hour and minute hands of an analog clock are aligned at 00:00 (midnight), at what time will they next realign
Your friend has climbed a tree to a height of 6 meters. You throw a ball vertically up to her and it is traveling at 5 meter per second when it reaches her. Find what was the speed of the ball when it left your hand
Two spaceships are traveling in the same direction. With respect to an inertial frame of reference, spaceship A has a speed of 0.900c. By respect to the similar inertial frame, spaceship B has a speed of 0.500c. Discover the speed vAB of spaceship A ..
A charged isolated metal sphere of diameter 24.0 cm has a potential of 7400 V relative to V = 0 at infinity. Calculate the energy density in the electric field near the surface of the sphere.
Consider a 2.5 GHz `clock' signal on a circuit board that has the following properties: It is constant at +4.00 V for 0.0073 ns, What is its rms voltage?
Three blocks are in contact and sitting on frictionless table. What is the magnitude of the force exerted by the third block on the second block
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