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A) A 1232.0 g mass is on a horizontal surface with ?k = 0.33, and is in contact with a massless spring with a force constant of 652.0 N/m which is compressed. When the spring is released, it does 0.81 J of work on the mass while returning to its equilibrium position. Calculate the distance the spring was compressed.
B) What is the velocity of the mass as it loses contact with the spring?
If the parachutist comes to rest with constant acceleration over a distance of 0.710 m, illustrate what force does the ground exerts on her?
By how much horizontal force would you need to apply to a 3.0 N plastic calculator to start it moving from rest? How much horizontal force would you need to keep it moving?
Find the potential 1.18 cm from a proton. The Coulomb constant is 8.9876 × 10^9 N m^2/C^2 and the elemental charge is 1.602 × 10^?19 C
Express the power in terms of some or all of the variables given in the problem introduction.
A horse races once around a circular track in a time of 18.0 s, with a speed of 18.0 m/s. Illustrate what is the radius of the track? Give your answer in meters, but do not include units.
A 7.3 x10^3 kg space vehicle and its empty 6.8 x 10^2 kg booster unit are moving together through space at 370 m s. An explosion lasting 2.2s is used to separate the two parts.
Mattwe pulls his little sister sarah in a sled on an icy surface, with a force of 60 N at an angle of 37 ° upward from the horizontal. If he pulls her a distance of 12m, then determine the work done by matthew?
What is the car's maximum speed on an incline of 1 in 20 (ie, if theta is the angle of the incline with the horizontal, sin = 1/20)? Illustrate what is its power output on a 1-in-10 incline if the car is traveling at 10 m/s?
A parallel-plate air capacitor of area A = 20.9 cm2 and plate separation of d = 2.50 mm is charged by a battery to a voltage of 63.0 V, What is the charge on the capacitor
Intuitively, the man will not catch the bus unless he is running fast enough. In mathematical terms, there is a constraint on the man's speed so that the equation above gives a solution for that is a real positive number.
A skier with a mass of 63 kg starts from rest and skis down an icy slope that has a length of 50 m at an angle of 32 degrees with respect to the horizontal. Iillustrate what is the speed of the skier at the bottom of the slope?
A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm.
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