A 2 meter tall astronaut standing on mars drops her glasses from her nose. how long will the astronaut have before he hits the ground?

A rock is dropped into a well hits the water in 5 secs. if there is no air resistance, what would be the rocks final speed?

Whenever there is a change of state, such as a solid to liquid or liquid to gas, heat energy can be added without a temperature change because?

A 100W light bulb worked 6h. How much will we pay for electricity if 1KWh costs 6 dinars?

Consider a solid metal sphere (S) a few centimeters in diameter and a feather (F). For each quantity in the list that follows, indicate whether the quantity is the same, greater, or lesser in the case of S or in that of FExplain in each case why you

A hanging wire made of an alloy of nickel with diameter 0.07 cm is initially 2.7 m long. When a 43 kg mass is hung from it, the wire stretches an amount 1.48 cm. A mole of nickel has a mass of 59 grams, and its density is 8.9 g/cm3.

An emf is induced by rotating a - turn, diameter coil in the Earth's magnetic field. What average emf is induced, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to the field in

If the first maximum of one circular diffraction pattern passes through the center of a second diffraction pattern, the two sources responsible for the pattern will appear to be a single source. A. True. B. False

When plants and animals die, their bodies are decomposed by organisms such as bacteria or fungi. Which statement is true regarding the decomposition process?

Two capacitors C1 and C2 are charged to 120V and 200V respectively. It is found that by connecting them together the potential on each one can be made zero. Then what is the relation between C1 and C2

How would the solar system compare to the milky way if balls and marbles were used to scale their sizes