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The position of a 1.2kg mass is given by x = (2t^3 - 3t^2)m, where t is in seconds.
A) What is the net horizontal force on the mass at t = 0s?
B) What is the net horizontal force on the mass at t = 1s?
A projectile is launched with an initial speed of 40.0 m/s at an angle of 30.0° above the horizontal. What is the straight-line distance from where the projectile was launched to where it hits its target
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
Block B in the figure weighs 760 N. The coefficient of static friction between block and table is 0.28; angle ? is 27°; Find the maximum weight of block A for which the system will be stationary
Upton Chuck is riding the Nitro at Six Flags Great Adventure. If Upton free falls for 2.55 seconds, what would be his final velocity and how far would he fall.
A proton is located at the origin, and a second proton is located on the x-axis at x = 5.10 fm (1 fm = 10-15 m). If the two protons are released from rest and the alpha particle remains fixed, calculate the speed of the protons at infinity
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
A wave traveling in the +x direction has an amplitude of 0.421 m, Write the equation of the wave
What will be the equilibrium temperature when a 223 g block of copper at 258 C is placed in the 178 g aluminium calorimeter cup containing 874 g of water at 13.2 C.
A converging lens of focal length 39 cm is placed next to a converging lens of length 55 cm. What is the effective focal length for this combination
A box slides across a frictionless floor with an initial speed v = 2.2 m/s. What is the shortest length of rough floor which will stop the box
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision
A space vehicle is traveling at 3570 km/h relative to Earth when the exhausted rocket motor is disengaged, What is the speed (in km/h) of the command module relative to Earth just after the separation
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