-

Not sure how to solve this, help would be greatly appreciated!

When a pendulum with a period of 2.00000 s is moved to a new location from one where the acceleration due to gravity was 9.80 m/s2, its new period becomes 1.99734 s. By how much does the acceleration due to gravity differ at its new location?

Kinda confused on how to solve this problem, help would be greatly appreciated!

A uniform rod of length L is pivoted at L/4 from one end. It is pulled to one side through a very small angle and allowed to oscillate in a vertical plane. Determine the period of oscillation of the pendulum if L = 4.78 m.

_____ s

Kinda confused on how to solve this one, help would be greatly appreciated!

A uniform rod of length L is pivoted at L/4 from one end. It is pulled to one side through a very small angle and allowed to oscillate in a vertical plane. Determine the period of oscillation of the pendulum if L = 4.78 m.

_____ s

Here's another problem I'm having trouble with:

The diagram shows a thin rod of uniform mass distribution pivoted about one end by a pin passing through that point. The mass of the rod is 0.470 kg and its length is 2.20 m. When the rod is released from its horizontal position, it swings down to the vertical position as shown.

(a) Determine the speed of its center of gravity at its lowest position. ____m/s

(b) When the rod reaches the vertical position, calculate the tangential speed of the free end of the rod. ____m/s

Mary is an avid game show fan and one of the contestants on a popular game show. She spins the wheel, and after 5.5 revolutions, the wheel comes to rest on a space that has a $1500 value prize. If the initial angular speed of the wheel is 4.05 rad/s, find the angle through which the wheel has turned when the angular speed reaches 2.20 rad/s.

I keep getting 24.36 as my answer but apparently it's not right.

Two particles are traveling in space. Particle #1 has a mass of m1 = 2.11 kg  and a velocity  v1 = (2.51î + 1.87ĵ − 3.03k) m/s.  Particle #2 has a mass of  m2 = 3.35 kg  and a velocity  v2 = (1.31î − 0.950ĵ + 6.12k) m/s. Determine the following for these two particles. 

(a) velocity of the center of mass

vcm = _____ m/s 

(b) total momentum of the system

ptotal = _____ kg · m/s

A rod with a length L = 0.385 m  and a nonuniform linear mass density rests along the y axis with one end at the origin. If the linear mass density of the rod is given by  λ= (4.50 ✕ 10−2 kg/m) + (1.50 ✕ 10−2 kg/m2)y, determine the following. 

(a) mass of the rod in kg

(b) distance (in m) of the center of mass of the rod from the origin

A simple pendulum is constructed by attaching a 0.900 kg ball to a 0.230 m long cord of negligible mass. If air resistance is negligible and the pendulum is swinging such that its maximum angular displacement is 30.0° determine the following.

(a) speed of the ball when it passes through its lowest position

(b) tension in the string when the ball is at its highest position

(c) tension in the string when the ball is at its lowest position

A box with a mass of 8.55 kg slides up a ramp inclined at an angle of 28.0° with the horizontal. The initial speed is 1.70 m/s and the coefficient of kinetic friction between the block and the ramp is 0.500. Determine the distance the block slides before coming to rest.

As shown in the figure below, a box of mass m = 61.0 kg  (initially at rest) is pushed a distance  d = 81.0 m  across a frictionless warehouse floor under the influence of two forces. A force of  F1 = 211 N  directed at an angle of 30.0° below the horizontal and a force  F2 = 110 N  acting in a direction that opposes the motion.

https://www.webassign.net/webassigncalcphys1/7-p-0...

What is the work done on the box by the force F2?

_____ J

Help would be much appreciated, I haven't seen a problem like this before:

A flea jumps by exerting a force of   Fflea = −1.92 * 10^-5 ĵ N   straight down on the ground. A breeze blowing on the flea parallel to the ground exerts a force of   Fwind = (−2.76 * 10^-5 î + 4.86 * 10^-5 k) N   on the flea.

Find the acceleration of the flea if its mass is   6.00 * 10^-7 kg.   Express your answer in vector form. Assume that the +x axis is to the right, the +y axis is up along the page, and the +z axis is out of the screen towards you as shown in the figure below.

https://www.webassign.net/waplots/0/e/b6be460c8457...

Help would be much appreciated, I haven't seen a problem like this before:

An object of mass 11.0-kg subjected to a non-zero net force moves with an acceleration of (8.00î − 8.00ĵ) m/s2.

(a) Determine the magnitude and direction of the net force acting on it.

magnitude _____ N

direction _____° counterclockwise from the +x axis 

(b) What acceleration would a 33.0-kg object have if the same net force is applied to it? Express your answer in vector form.

a = _____ m/s^2

H2SO3 + 2 LiOH --> 2 H2O + Li2SO3

A chemist uses a standard solution of 0.236 M lithium hydroxide (LiOH) to titrate 35.72 mL of sulfurous acid acid (H2SO3), she finds that it requires 24.15 mL of the base to reach the end-point of the titration. What is the molarity of the acid solution?

Your answer must be rounded to the correct number of significant figures.