An unknown material has a mass of 0.447 kg, and its temperature increases by 2.87°C when 943 J of heat are added. What is the specific heat of the material? (Unit=J (kg*C))

We have an object with a density of 620g/cm^3 and a volume of 75cm cm^3. What is the mass of this object

Joaquin has hockey practice at the same ice rink where Alton has curling practice. One day, they were both playing on the ice with their equipment.

Why g value varies but G is constant

The speed of light is closest to 300,000

What part of the compressional wave has the lowest density

Why are some craters on the moon bigger than others

What object oriented feature can we use to have a single test program, with one set of method calls in which the user can decide which bag implementation (array - or link-based) needs testing?

What might motivate someone to study forensics

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to five times her weight as she goes through the dip. If r = 17.

A mass spectrometer accelerates doubly ionized atoms of charge 2e over a potential difference V before they enter a uniform magnetic field B which is perpendicular to the direction of motion of the ions.