A 50g mass of metal (c=0.20 cal/g°C) at 90°c is dropped into water at 30°c and the temperatures stabilized at 40°c.

100g

50g

2.0g

70g

A block of mass 2 kg is traveling in the positive direction at 3 m/s. Another block of mass 1.5 kg, traveling in the same direction at 4 m/s, collides elastically with the first block. Find the final velocities of the blocks.

Light from a lamp is shining on a surface. how can you increase the intensity of the light on the surface?

Provide support to the argument that Cornell university did violate ethical requirements for research

When one continental plate slides beneath another A. weathering and erosion work to build high plateaus and mountain ranges. B. the process of melting returns material to the Earth's surface. C.

A circuit has a current of 1.2 A. If the voltage decreases to one-third of its original amount while the resistance remains constant, what will be the resulting current? 03A 0 0.4A 0 12A G 3.6A

Two boats start together and race across a 74-km-wide lake and back. Boat A goes across at 74 km/h and returns at 74 km/h. Boat B goes across at 37 km/h, and its crew, realizing how far behind it is getting, returns at 111 km/h.

Working of electric generator

Two pieces of steel are welded together at a construction site. What best describes the value of Q in this situation?

Mitchell learned about convection in class. In convection, warmer fluids rise and cooler fluids sink because they have different densities. He decides to conduct a scientific investigation to measure how the density of water changes with temperature.

Jupiter has approximately 100 times the volume of earth? True False