Physics Kinematics Level: Misc Level
A projectile is launched upward at an angle. what should this angle be with respect to the horizontal in order for the projectile to travel the farthest distance? Explain why?
Physics Gravitation Level: Misc Level
What are the restrictions on the orbit of a communications satellite it is to appear motinless in the sky as viewed from any location on earth?
Physics Gravitation Level: Misc Level
Why does the force of gravity change the speed of a satellite in an ellipticall orbit?
Physics Gravitation Level: Misc Level
Many people mistakenly believe that astronauts that orbit the Earth are ''above gravity''Calculate the accelration due to gravity (g)for space shuttle territory, 200 kilometers above Earth,s surface. Earth,s mass is 6x 10 kilograms and its radius is 6.38 x 10 meters (6380 kilometers).Your answer is what percentage of 9.8 m/s2?
Physics Current Electricity Level: Misc Level
How much current will flow through the 8.0 Q resistor?
a.1.0A
b.0.29 A
c.0.50 A
d.2.0 A
e.None of the other responses
Physics Current Electricity Level: Misc Level
In a certain DC circuit, 1.50 A of current flows through a 4.00 Q metal resistor for a period of 90.0 s. During this time interval, what is the net number of electrons that have passed through a cross-section of the resistor?
a.135
b.8.43x1020
c.3.37x1021
d.1.04x1017
e.5.06x1021
Physics Current Electricity Level: Misc Level
For the circuit shown, what is the magnitude of the potential difference across the 6.00 Q resistor?
a.4.50 V
b.3.60 V
c.6.00 V
d.6.75 V
e.1.80 V
Physics Electrostatics Level: Misc Level
A positive charge of 2*10^-6 coul experience of 06 newton when placed at a point in an electric field. The strength of the field at that point in newton/coul is?
Physics Electrostatics Level: Misc Level
how much work is required to move an electron through a potential difference of 200 volts in an electric field?
Physics Electrostatics Level: Misc Level
Q 1 and Q2 represent teo point charges originally a distance R (not) apart. If the charge Q1 is tripled while charge Q2 is halved, how far apart would they now have to be in order to have the same force between them as in the original situation?
Physics Electrostatics Level: Misc Level
two protons are placed 1.0 cm apart and released from rest. What is the magnitude and initial acceleration of either proton?
Physics Relativity Level: Misc Level
A rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what direction with respect to the billboard would a space travler have to pass for the billboard to appear square?
Physics Relativity Level: Misc Level
How long would a meter stick appear if it were travelling like a properly thrown spear at 99.5% of the speed of light?
Physics Relativity Level: Misc Level
State and explain the principle of equivalence. Please also provide one or two simple examples.
Physics Relativity Level: Misc Level
Define;A) Time dilation, B,) Mass-Energy equivalence
