In his science project, Ben explained the pyramid of energy with an example of the population of birds and the insects they feed on. Can he invert the pyramid to show the flow of energy?

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

Which type of wave is characterized by circular motion? A. transverse wave B. longitudinal wave C. primary wave D. surface wave

Is carbon dioxide a fluid

How to calculate the speed of light?

A bar having a length of 5 in. and cross-sectional area of 0.7 in.² is subjected to an axial force of 8000 lb. If the bar stretches 0.002 in., determine the modulus of elasticity of the material. The material has linear elastic behavior.

Which of the following generally speed up a reaction? A. increasing the activation energy B. removing any catalysts C. adding more heat D. shaking the container holding the reaction

Cual es el peso de 5L de un fluido que tiene una densidad 3.5 veces mayor que la del agua?

A flask containing neon gas is connected to an open-ended mercury manometer. The open end is exposed to the atmosphere, where the prevailing pressure is 745 torr. The mercury level in the open arm is 50.

1. f= 2. v= 3. 2 = 4. T= 8 m/s 8 sec 8 Hz 8 m Match the letters with the measurements

A skier speeds down a smooth ski slope which is at an angle of θ = 23° with the horizontal. The mass of the skier is 71 kg. Take the downhill direction to be positive and uphill to be negative.