A 30 cm3 chunk of platinum weighs 6.3 N. It is carefully submerged in a tub of molasses. One cm3 of molasses weighs 0.013 N.

a. What is the weight of the molasses displaced by the platinum?

b. Will the platinum sink or float in the molasses?

A classroom is air-conditioned using window air-conditioning units. The cooling load is due to people, lights, and heat transfer through the walls and the windows. There are 40 students and 10 bulbs in the class room.

A pile driver lifts a 450 kg weight and then lets it fall onto the end of a steel pipe that needs to be driven into the ground. A fall of 1.5 m drives the pipe in 45 cm. What is the average force exerted on the pipe?

michelle withdrew 120$ from her bank account. she now has 3345$ in her account qrite and solve an equation to find how much money m was in her account before she made the withdrawal

A 30 kg girl sits on a seesaw 4.0 m from the fulcrum. what distance from the fulcrum should a 40kg boy sit in order to balance the seesaw

Which of the following types of light has the most energy to give to an electron? -infrared -blue -ultraviolet -orange

I am looking for this answer : Which shows a correct order of steps in the scientific method? develop a hypothesis, analyze data, make observations, draw conclusions make observations, draw conclusions, develop a hypothesis, analyze data.

A gas in a piston is compressed doing - 439 j of work, and its internal energy increases by 318 j. how much heat flows? (be careful with + and -. + w = expansion. + q = added, + u = temp goes up) (unit = j)

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started