A swing oscillates 8 times in 12 seconds

what is its period

what is its frequency

An any can travel approximately 30meters per min how many meteres could an ant move in 45mins

If a rock is thrown upward on the planet Mars with a velocity of 18 m/s, its height (in meters) after t seconds is given by H = 18t - 1.86t2. (a) Find the velocity of the rock after one second. 14.28 Correct: Your answer is correct.

A force of 250 N is applied to a 1 kg softball when struck with a bat. what is the acceleration

Sum up in a few sentences what did Cavendish discover and how did he do it?

During an investigation, Sam observes the number of hummingbirds that come to his large bird feeder at different times of day. He fills the feeder to the top the first day and counts the number of birds at 6 a. m., noon, and 6 p. m. over ten days.

A taxi hurries for 1 3/4 hours with a constant speed of 84 mph and then for another 1 hour 45 minutes with a constant speed of 24 mph. what is its average speed for the total trip?

A carbon atom has how many valence electrons?

X-rays UV light waves Sound waves Earthquake waves. All of these have which characteristic in common?

V=345m/s, 7210Hz, X=?

As a mercury atom absorbs a photon of energy, an electron in the atom changes from energy level d to energy level e. Determine the energy of the absorbed photon in electronvolts.