Calculate the time that a neutron will take to pass through the nucleus (2r) if there are no interactions.

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Contains chemical energy. a. heat b. light c. natural gas