Other Physics Answers

wave covers 30cm in 5s, if the distance between a crest and its neighbouring trough is 1.5cm, (a) What is the wavelength? (b) How many circles can be formed in 15s?

1)                 A tube 60 cm long is closed at one end. Resonance occurs and the vibrating air column in the tube produces sound of frequency 992 Hz. The third overtone mode is found in the air column. (ignore the end correction)

a)                 Sketch and label the waveform of the air column.

b)                Calculate

i)                   the speed of sound in air,

A car exhibits a constant acceleration of 0.300 m/s2 parallel to the roadway. The car passes over a rise in

the roadway such that the top of the rise is shaped like a circle of radius 500 m. At the moment the car is

at the top of the rise, its velocity vector is horizontal and has a magnitude of 6.00 m/s. What is the

direction of the total acceleration vector for the car at this instant?

A plane drops a package of supplies to a party of explorers, as shown in Figure below. If the plane is traveling horizontally at 40.0 m/s and is 100 m above the ground, where does the package strike the ground relative to the point at which it is released?

A man uses a pulley system to slow down the falling of a box. Find the acceleration of the box. Given that the mass of the box is 7 kg and the weight is 5 kg and the string is inextensible.

Relate the topic on uncertainty in derived quantities on estimation of time in event in your life. Cite techniques to apply uncertainty in derived quantities.

A force of 210 N is applied to an object and the object accelerates at 14 m/s2. Determine the mass

of the object in kg.

A cylinder has 150ml of water when a stone is immersed In it The water level raised Into 210cm³ what is the volume of stone