During what phase of the moon does a solar eclipse take place01

A positive charge is moving from the floor of a room toward the ceiling. A magnetic field runs from east to west. In what direction is the magnetic force on the moving positive charge? a. toward the north b. toward the south c. toward the east d.

Most costal areas have tides and low tides everyday

An 3.7 lb hammer head, traveling at 5.8 ft/s strikes a nail and is brought to a stop in 0.00068 s. The acceleration of gravity is 32 ft/s 2. What force did the nail receive? Answer in units of lb.

Which of the following must be true about an object for it to be in uniform circular motion? A. It must have zero centripetal acceleration. B, It must have increasing centripetal acceleration. c. It must be moving at a constant speed. D.

A beam of light, traveling in air, strikes a plate of transparent material at an angle of incidence of 56.0°. It is observed that the reflected and refracted beams form an angle of 90.0°. What is the index of refraction of this material?

Which of the following contains both protons and neutrons? a. outer shell b. nucleus c. covalent bond d. ionic bond

Density is a property of matter that relates

A main sequence star cools and expands. It must be entering which stage? A. white dwarf B. black dwarf C. red giant D. neutron star ... ?

Question 1: A man trailing a trolley bag and suddenly, the wheels of the trolley bag get locked. The man realises that he has to put extra effort to drag the bag. The man finds it difficult to drag the bag because

A body is thrown up with a velocity of u ... it reaches maximum height of h ... if its velocity is doubled the maximum height it reaches is?