
-/2 points SerPSE10 15.5.0P.022. My Notes A pendulum's angular position is given by e-0.0310 cos(at), where...
0.0310 cos wit, where 0 is in radians and 6 = 8.28 rad/s. Determine the period and length The angular position of a pendulum is represented by the equation 0 of the pendulum. period length Enter a number. m Need Help? Read it
3. [-/1 Points] DETAILS SERPSE10 10.1.P.002. MY NOTES PRACTICE ANOTHER A bar on a hinge starts from rest and rotates with an angular acceleration a = 13 + 7t, where a is in rad/s2 and t is in seconds. Determine the angle in radians through which the bar turns in the first 3.80 s. rad Need Help? Read It Submit Answer
10. -13 points SerPSE10 15.5.0P.026. My Notes A simple pendulum is 6.00 m long. (a) What is the period of small oscillations for this pendulum if it is located in an elevator accelerating upward at 4.00 m/s?? (b) What is the period of small oscillations for this pendulum if it is located in an elevator accelerating downward at 4.00 m/s2? (c) What is the period of this pendulum if it is placed in a truck that is accelerating horizontally at...
11. + -11 points SerPSE10 8.5.OP.022.MI. My Notes + Ask A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from rest and is pulled up a mine shaft by a cable connected to a winch. The shaft is inclined at 34.5° above the horizontal. The car accelerates uniformly to a speed of 2.05 m/s in 11.0 s and then continues at constant speed. (a) What power must the winch motor...
the angular position of a pendulum is represented by the equation theta=0.0300cos(omega)(t) , where theta is in radians and omega=4.73 rad/s. Determine the period and length of the pendulum in seconds and meters, respectivley
7. -13 points SerPSE10 27.4.OP 022 My Notes Ask Your Teache A 2.00-nF capacitor with an initial charge of 4.48 μc is discharged through a 1.66-kΩ resistor. (a) Calculate the current in the resistor 9.00 μs after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that do dt mA (b) what charge remains on the capacitor after 8.00 μs? (c) What is the (magnitude of the) maximum current...
-13 points SerPSE10 15.3.0P.018. My Notes A 381 g particle attached to a horizontal spring moves in simple harmonic motion with a period of 0.220 s. The total mechanical energy of the spring- mass system is 5.26 J. (a) What is the maximum speed of the particle (in m/s)? m/s (b) What is the spring constant (in N/m)? N/m (c) What is the amplitude of the motion (in m)? Need Help? Read It
The angular position of a point on a rotating wheel is given by
θ = 1.6 + 4.2t2 +
1.7t3, where θ is in radians and
t is in seconds
(a) At t = 0, what is the point's angular position?
(b) At t = 0, what is the point's angular velocity?
(c) What is its angular velocity at t = 4.0 s?
(d) Calculate its angular acceleration at t = 2.0
s.
(e) Is its angular acceleration constant?
is...
My Notes Ask Your Teache 2. -13 points SerPSE10 8.2.P.003. and slides on the frictionless track shown in the figure A block of mass m 6.70 kg is released from rest from point below. (Leth, = 7.40 m.) S. 20 m 2.00 m (a) Determine the block's speed at points and ©. m/s (b) Determine the network done by the gravitational force on the block as it moves from point to point 0. Need Help? Read Watch It 3. -12...
-/3 points 4 SerPSE10 15.3.0P.012. My Notes A 300 g load attached to a horizontal spring moves in simple harmonic motion with a period of 0.340 s. The total mechanical energy of the spring-load system is 4.00 J. (a) What is the spring constant (in N/m)? N/m (b) What is the amplitude (in m) of the motion? m (e) What If? What is the percentage change in amplitude of motion if the total energy of the system is increased to...