A golf ball is dropped from rest from a height of 8.30 m. It hits the pavement, then bounces back up, rising just 5.40 m before falling back down again. A boy then catches the ball when it is 1.50...

a disc of mass m is moving on a horizontal surface with velocity v collides elastically to an identical stationary disc as shoen in figure the velocities of two disc after collision are

A. If you want to measure the density of a cube. you measured mass is 10kg\pm ± 0.1kg. All of your length,height and width are 10m\pm ± 0.1m. Using error propagation theory, please calculate the uncertainty...

as a 5.00-kg sample of liquid mercury is cooled into a solid, it liberates 157 kJ of energy. For mercury, the melting point is 234 K, the heat of fusion is 11.3 kJ/kg, and the specific heat is...

The motion of the earth's crustal plates is described by a model referred to as a tectonic .measurement indicate that the Borneo island have westward plate tectonic speed of 1.3 cm per year.estimate...

a. Identify a control variable mentioned in the procedure. b. Identify the experimental variable in the procedure. c. Write a hypothesis for this experiment. d. Identify the data in this...

A planet has the same gravitational field strength as the earth. In an experiment, a particle is fired vertically upward from ground level of the planet. When the particle is uncharged and fired at...

A ship sails 30 kilometers 70 degrees north of east. It then turns 110 degrees to the west, giving it a new heading of 0 degrees north of west. After sailing another 30 kilometers, how far is...

orces of 80 N at 130 degrees, and 10 N at an angle of 190 degrees, measured counter-clockwise from the positive x-axis, act on an object. What is the magnitude of the resultant force (in...

A ball is thrown upward at time t=0 from the ground with an initial velocity of 18 m/s (~ 40 mph). Assume that g = 10 m/s2. What is the greatest height (in meters) reached by the ball?

A helium-neon laswer produces light with a peak wavelength of 633 nm when at rest. Imagine that such a laser is being carried on a spaceship. If you observe light from the spaceship's laser to have...

The wave y1 = 0.12 sin π/3(5x+200t-1) propagates on a string of linear density 0.02 kg/m. (a) Calculate the average power transmitted. (b) If the wave y2 = 0.12 sin π /3(5x+200t+3)...