Using a telescope, you track a rocket that was launched 13 km away recording the angle theta between the telescope and the ground at half‑second intervals. estimate the velocity of the rocket of theta(10)=0.205 and theta(10.5)=0.225.

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f