How to generate electricity from biogas?

A 1 cm^3 block with a density of 0.92 g/cm^3 is floating in a container of water (d = 1g / cm^3). You may ignore any air pressure throughout this problem. What buoyant force is necessary to keep the block from sinking?

Describe the speed of the motorcycle between the beginning and the second hour of the trip

Find the gravitational potential energy of the stone. A stone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. The stone rolls down 10 meters and comes to rest on a patch of moss.

You are studying sunlight passing through the top layer of the atmosphere of venus to learn about its composition. what type of spectrum would you see?

A pesticide was applied to a population of roaches, and it was determined that the LD50 was 55mgkg. If the average mass of a roach was 0.02kg, which of the following approaches will determine the dose in mg per roach?

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.