Physics, 14.02.2020 20:35 meganwintergirl
PL-1) A spring that hangs vertically is 25 cm long when no weight is attached to its lower end. Steve adds 250 g of mass to the end of the spring, which stretches to a new length of 37 cm. What is the spring constant, k, in N/m?
Answers: 3
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Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?
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Physics, 22.06.2019 14:30
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
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Physics, 22.06.2019 23:40
A2.50 Ć 105 w motor is used for 26.4 s to pull a boat straight toward shore. how far does the boat move toward shore if a force of 4.20 Ć 104 n is applied by the motor?
Answers: 2
PL-1) A spring that hangs vertically is 25 cm long when no weight is attached to its lower end. Stev...
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