A"scale" is constructed with a 4-ft-long cord and the 10-lb block d. the cord is fixed to a pin at a and passes over two small pulleys at b and c. determine the weight of the suspended block e if the system is in equilibrium when s=1.5 ft. a "scale" is constructed with a 4--long cord and the 10- block . the cord is fixed to a pin at and passes over two small pulleys at and . determine the weight of the suspended block if the system is in equilibrium when w=14.91 lb w=17.63 lb w=18.33 lb w=8.01 lb

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev

What is part of a line has one endpoint and continues in one direction?