Which has a greater momentum? A 1200kg car traveling at 30m/s or a 2000kg truck traveling at 20m/s

What is a shooting star? A comets streaking through the sky B. stars falling on Earth C. meteoroids falling on Earth D. asteroids revolving around the Sun

How can the ear drum be damaged

Vanadium metal has a molar heat capacity of 24.9 J/mol·K. Given that q = Cm * n * ΔT, how many moles of vanadium are present if 3.27 ✕ 103 J of heat is required to raise the temperature of the sample by 36.7 K?

The Atomic Mass of an element is A) The sum of the number of protons and electrons in one atom of the element B) Twice the number of protons in one atom of the element C) A ratio based on the mass of a carbon-12 atom D) A weighted average of the

Which color is more energetic orange or blue? why?

The pressure at the bottom of a jug filled with water does not depend on

at what other angle will a thrown ball go the same distance as one thrown at an angle of 75 degrees?

A record player turntable initially rotating at 3313 rev/min is braked to a stop at a constant rotational acceleration. The turntable has a rotational inertia of 0.031kg? m2.

A steam engine does 12 kJ or work in 55 s. how much power does the engine produce?

What is the energy source that heats a contracting protostar?