Rodrigo F.

An object is placed 4.0 cm to the left of a convex lens with a focal length of +8.0 cm . Where is the image of the object?(a) 8 cm to the left of the lens(b) 8 cm to the right of the lens(c) 12 cm... more

What is the molarity of a solution that contains 112 g of NaCl in 6 L of solution? ______M

A 1210 kg car is driving NE (at45.0°) at 15.2 m/s when it isstruck by a moving 1540 kg car.Afterward, they stick together andmove directly east (at 0°) at 23.3m/s. What was the y-componentof the... more

A 7.50 kg bowling ball moving6.42 m/s strikes a 1.60 kg bowlingpin at rest. After, the ball moves5.43 m/s at a 12.0° angle. What isthe x-component of the pin's finalvelocity?Can someone please ... more

What Celsius temperature, T2 is required to change the volume of the gas sample in Part A ( T1 = 33 degree Celsius, V1 = 1.22×103  ) to a volume of 2.44×103? Assume no change in pressure or the... more

Silicon, which occurs in nature as SiO2, is the material from which most computer chips are made. If SiO2 is heated until it melts into a liquid, it reacts with solid carbon to form liquid silicon... more

I need help with this physics question:A metal block with mass m = 7.50 kg is connected by a cord wrapped around a 1.25-kg hollow cylinder pulley with a frictionless axle as shown. The... more

At 0°C and 760 mm Hg, 28 grams of nitrogen occupy 22.4 liters. Compute the mass of one liter of nitrogen at 35.0°C and 1500 mm Hg.

a) what is the pilot's velocity relative to the ground for each leg of the trip?b) What is the time for each leg of the trip, in minutes?c) how long, in minutes, would the trip take if there were... more

A 7.6 −kg−kg box having an initial speed of 4.5 m/sm/s slides along a rough table and comes to rest.Estimate the total change in entropy of the universe. Assume all objects are at room... more