A race car makes one lap around a track of radius 60 m in 6 s. What is the average velocity of the car as it goes around the circular track? Round your answer to one decimal place.
A 1.5 kilogram projectile launched at some angle leaves the ground with kinetic energy totally 250 joules at the highest height, its kinetic energy is 105 joules. To what vertical height did the projectile rise?
A proton is placed in uniform electric field that is directed downward and has a magnitude of 5.0 N/C. What is the magnitude and direction of the electric force experience by the proton?
the energy used by an electric iron for 1 minute is 33 kJ, at a voltage of 220 volts. How large the current is in the electric iron?
A 0.500 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly distributed 40.0 pC charge on its surface. what is the potential near its surface?
Find the electric field midway between a 2-μC point charge wich are 2.5m apart.
A father pushes his young daughter on a sled up a 15o inclined-plane which is moving at a
constant velocity. If the push of the father is directed horizontally with a magnitude of
92.0 N, (a) how much work is done by the applied force of the father on the sled with the girl
up to a height of 3.25 m from the base of the inclined plane? (b) What is the work done by
the weight on the sled with the girl if its total mass is 35.0 kg?
How much Work will be done if 420 J of Heat has been added to the Isothermal Process.
Two equal charges are located 1m from each other. The force acting between them is 2N. How many Coulombs is each charge?
In a series of 2ohms,4ohms,3ohms,2ohms,4ohms and 3voltage find the current in the circuit