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Find its velocity at the end of this time interval. ______m/s (got this one = -.834) Next, assume it moves with simple harmonic motion for 3.90 s and x = 0 is its equilibrium position. (Assume that
What is the direction of the dog's velocity (measured from the +x-y axis toward the +y-axis)?
If the axis of rotation is the lower end of the boom, the torque produced by the block has a magnitude of 3.20 x 10^7 NxM. Treat the boom's mass as negligible, and calculate the length of the boom.
If the radius of the circle is r = 3.0 meters, determine its mass m of the moving charged particle. My answer to this problem is 3.38 x 10^-12 what is the correct answer for this?
Find the net gravitational force exerted by these objects on a 32.0-kg object placed midway between them. magnitude Your response differs from the correct answer by more than 10%. Double check your
The linear density of the string is 5.00g/m What is the string tension? What is the maximum displacement of a point on the string? What is the maximum speed of a point on the string?
A gold brick measuring 0.25 ft. by 0.33ft by 1ft. is submerged in water. The weight density of gold is 1200 pounds per cubic foot and the weight density of water is 62.4 pounds per cubic foot. a) W
Two charges q1= +3x10^-6 and q2 = -6x10^-6 C are placed along the x axis at orgin and 1.2m respectively, b) What would be the electric potential energy of a third charge of q= +12 x 10^-6
A 2.0 m-long string vibrates at its second-harmonic frequency with a maximum amplitude of 1.5cm . One end of the string is at x =0cm . Find the oscillation amplitude at X=10, 20,30,40,50,60.
A given motorcycle has a mass of 235 kg. When driven in a circular pah with a radius of 25.0 m, the centripetal force generated is 1850 N. If the mass of the biker is 72 kg, what is the tangential s
A firefighter with a weight of 673 N slides down a vertical pole with an acceleration of 3.05 m/s2, directed downward. What are the magnitudes and directions (choose the positive direction up) of th
A 0.21 kg particle moves along an x axis according to x(t) = - 11 + 3 t + 5 t^2 - 5 t^3, with x in meters and t in seconds. What are projections of the net force acting on the particle at t = 3.2 s
What is the magnitude of the athlete's average force on the shot during the acceleration phase? (Hint: Treat the motion during the acceleration phase as though it were along a ramp at the given angl
The distance that a certain particle moves may be calculated from the expression d= at+bt^2 where a and b are constants and t is elapsed time, what must the dimesions of the quantities A and B be re
By considering the conservation of both energy and momentum, find the speeds of both spheres after they are released and at the point just before they collide.
Calculate the maximum height above the roof reached by the rock. Calculate the magnitude of the velocity of the rock just before it strikes the ground.
At time = 19.3 , what are the x-component of the dog's velocity? 2-At time = 19.3 , what are the y-component of the dog's velocity? Express your answer using two significant figures.
What is the magnitude of the other horizontal forces acting on the child, besides the tension in the handle? Assume the child moves along with the wagon.
A child pulls an 15 kg- wagon with a horizontal handle whose mass is 1.9 kg , accelerating the wagon and handle at 2.5 m/s^2 . A. Find the tension force at end of the handle near to the child. B. Fi
We have ammeter and we measure the current of a bulb. When the ammeter is set on 300ma and the bulb is not as bright. But when the ammeter is set to 3A the bulb is brighter then before and the meter
The frequency of oscillation depends on the restoring force of the web and the mass of the insect. Spiders respond more quickly to larger - and therefore more valuable - prey, which they can disting
How much power does each dog supply to p the sled/driver system at a constant speed of 9.00 m/s where the coefficient of friction between the sled and the snow is 0.150?
Calculate the frequency of the dampened oscillation. Hz (b) By what percentage does the amplitude of the oscillation decrease in each cycle?
(a) Explain why the bump, from your viewpoint behind the car, executes simple harmonic motion (b) If the radii of the car's tires are 0.425 m, what is the bump's period of oscillation?
At which point in the travel of the mass is the kinetic energy of the mass at its maximum?