Physics Answers

A child kicks a ball with a force of 160 n. If the ball has a mass of 300g how quickly will it accelerate?

A light source emits visible light of two wavelengths: λ = 430 nm and λ’ = 510 nm. The source is used in a double- 

slits interference experiment in which L =1.50 m and d = 0.025 0 mm. Are there any locations on the screen where  

the bright fringes from the two wavelengths overlap exactly?

A gun is fired with a velocity of 150m|s at an angle of 30°to the horizontal calculate its time of flight

A car that travels at 6.3 km/hr for 2.0 hrs, at 5.7 for 1.0 hr and at 6.6 for half an hour. What is its average speed?

A man with a mass of 50kg rides a Ferris wheel of radius 10 meters rotating in a vertical circle at at a constant speed of 3.0 m/s. Which will gave a greater impulse during collision with other vehicle, a 2500 kg running at 60 km/H or 3200 kg bus moving 21m/s? Show your solution.

A man with a mass of 50kg rides a Ferris wheel of radius 10 meters rotating in a vertical circle at a constant speed of 3.0 m/s. The normal force on the man from the seat when the man is at its lowest point.

A particle with a charge of 5nC has a distance of 0.5m away from a charge of 9.5nC. What is its electric potential energy?

With the proper figures, describe the following terms in the context of Series R-L-C circuit

(i) Resonance Frequency (f0)

(ii) Power factor for f = f0,

(iii) Half-Power Bandwidth

(iv) Selectivity (Quality Factor) 

A gold ball is given an initial speed of 20. meters per second and returns to level ground. Which launch angle above level ground results in the ball traveling the greatest horizontal distance?[Neglect friction]

an object travels in a circular orbit. If the speed of the object is halved, it's centripetal acceleration will be...