If a star is 10 light-years away from us and it explodes today, when will we know that it exploded?

today

10 years from today

10 parsecs from today

The speed of sound is dependent on which of the following? the medium through which the sound travels the object that creates the sound the refraction of the sound none of the above

According to the Premable to Bill of Rights what is the purpose of the bill of rights guaranteed everyone's rights to stop people from depriving others of their rights

Which of these is most directly related to the mass of an object? Weight Acceleration Volume Inertia

The zone of earthquakes and volcanoes surrounding the pacific ocean is called

A 1kg block is pushed with an external force of 20 newtons then slows to rest after moving 3M if the coefficient of friction between the block and the table is. 5 what is the total work done by the block?

Which answer choice best explains why nuclear reactions release more energy than chemical reactions? Electrostatic forces of repulsion are thousands of times stronger than gravitational forces.

A train's mass is 18181.81 kg. What is its weight?

a 3.0m long frictionless pendulum swings with a maximum angluar displacement of 10 degree from the vertical. at its lowest position the kinetic energy of the pendulum is 20.0j what is the potential energy of the pendulum when the kientic energy is 5.

How are hypotheses and theories related to each other?

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?