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An object moves along the x axis according to the equation x = 3.85t2 ? 2.00t + 3.00, where x is in meters and t is in seconds. (a) Determine the average speed between t = 2.80 s and t = 4.60 s. (b) Determine the instantaneous speed at t = 2.80 s. (c)Determine the instantaneous speed at t = 4.60 s. (d) Determine the average acceleration between t = 2.80 s and t = 4.60 s. (e) Determine the instantaneous acceleration at t = 2.80 s. (f)Determine the instantaneous acceleration at t = 4.60 s. (g) At what time is the object at rest?
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 46.0 cm. What is the value of the acceleration of gravity on this planet
Three parallel wire 5 m long carry each 24 A of current in the same direction. Find the magnitude force on each wire
A negative charge of -2.0 multiplied by 10-4 C and a positive charge of 9.5 multiplied by 10-4 C are divided by 0.30 m. What is the force between the two charges.
A proton moving at 3.6*10^5m/s to the right enters a region where a uniform electric field of magnitude 60kN/C points to the left
a frictionless pulley which can be modeled as a 0.80 solid cylinder with a 0.30 m radius has a rope going over it. What is the angular acceleration of the pulley
Consider a simple cubic crystal structure with a cube edge a= 3.5x10^-10 m and suppose it is used to scatter 3.10x^-10 m x-rays, Find the Bragg angle theta
three resistors of 75, 50 , 100 ohms are connected to a 9 volt source. determine the power dissipated by the circuit
What happens when a proton moves parallel to a magnetic field and when a proton moves perpendicular to a magnetic field
what magnitude of horizontal force must the person apply to keep it moving with constant velocity? c) If the person continued to push with the force used to start the motion, what would be the acceleration of the trunk.
Gas flows from a reservoir at 2000 psi pressure into a well at 1 atm pressure, what is the actual volumetric flow in the well
A skier (m=63.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 6.10 m and D = 12.2 m, find H.
A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.50 m/s collides head-on with a 0.84 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
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