Three beads are placed along a thin rod. The first bead, of mass m1 = 29 g, is placed a distance d1 = 1.5 cm from the left end of the rod. The second bead, of mass m2 = 12 g, is placed a distance d2 = 1.5 cm to the right of the first bead. The third bead, of mass m3 = 46 g, is placed a distance d3 = 4.9 cm to the right of the second bead. Assume an x-axis that points to the right. Find the center of mass, in centimeters, relative to the left end of the rod.

Three beads are placed along a thin rod. The first bead, of mass m1 = 25 g, is placed a distance d1 = 0.75 cm from the left end of the rod. The second bead, of mass m2 = 11 g, is placed a distance d2 = 1.8 cm to the right of the first bead. The third bead, of mass m3 = 48 g, is placed a distance d3 = 3.9 cm to the right of the second bead. Assume an x-axis that points to the right. -Find the center of mass, in centimeters, relative to the left end of the rod.  (Xcm = ?)

The density of aluminum is 2.7 g/cm^3. How much mass is contained in a chunk of aluminum with a volume of 379mL?

Consider a horizontal forearm. On one end of the forearm is the elbow, and on the other end is the hand. The forearm has a mass of 5.00 kg. The distance from the elbow to the hand is 34 cm. If the biceps muscle connects to the forearm a distance of 5.50  cm from the elbow, and the biceps muscle can supply a maximum force of 775. N (with the forearm in a horizontal position), what is the maximum mass (in kg) that the person can hold? (What equation can I use to solve this problem? Shouls I assume that the center of mass of the forearm to be midway/ in the middle between the elbow and the hand?)

Which of the following statements are true of the quantity mass? The standard English unit of mass the slug The mass of an object can be measured in pounds The mass of an object is variable and dependent upon its location The mass of an object is dependent upon the value of the acceleration of gravity

Samantha is 1.43 m tall on her eleventh birthday and 1.65 m tall on her twelfth birthday.       By what factor has her height increased?

Given values: m1 = 10kg, r1=75 cm,  m3=20kg, r3=25cm, m4=5kg, had to find the value of r4=? I got r4=50cm m1 = 10 kg at r1 = 75cm m3 = 20 kg at r3 = 25cm m4 = 5 kg at r4 = 50cm   1. Compute the theoretical value of r4 using the following equation: r1m1 = r3m3 + r4m4 Substitute the values of r1, r3, m1, m3, m4 and solve for r4 theoretical value and find r4 experimental value

The sonar unit on a boat is designed to measure the depth of fresh water (p = 1.00 x 103 kg/m³, Bad = 2.20 x 109 Pa). When the boat moves into salt water (p = 1025 kg/m³, Bad = 2.37 x 109 Pa), the sonar unit is no longer calibrated properly. In salt water, the sonar unit indicates the water depth to be 8.87 m. What is the actual depth (in m) of the water? Number i ! Units m

A staging that weighs 390 N supports two painters, one 290 N and the other 340 N. The reading in the left scale is F = 460 N. 460 F, What is the reading F, in the right hand scale? Answer in units of N.