The mass and related weight on the respective objects on four different planets is
4 kg, 40n, earth
6 kg, 24n, mars
2 kg, 50n, jupiter
4 kg, 36n, venus
a) based on the information given, explain why the gravitational force on earth is stronger than on venus.(3%)
b) explain the relationship between the weight and the gravitational force of the planet on the object.(2%)
c) predict what will happen if the mass of the four planets is the same(3%)

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

Why is the use of carbon-14 limited