Pouvez-vous m'aider svp a cette question:Le cylindre en fer a la même masse que le bloc de polystyrène. Quelle différence y a t il alors entre les deux.

Find the momentum of 5 kg bowling ball at 10 m/s.

Identify the true statements about surface tension. Molecules along the surface of a liquid behave differently than those in the bulk liquid. Mercury has a lower surface tension than water.

In location B, what can you conclude about the sediments carried in the river?

How much energy must be supplied to break a single 21Ne nucleus into separated protons and neutrons if the nucleus has a mass of 20.98846 amu? What is the nuclear binding energy for 1 {/rm mol} of {/rm ^{21}Ne}?

What is the mass number of a chlorine atom with 17 protons and 18 neutrons?

What is the mass of a box of nails

In a phase change of water between the liquid and the gas phases, 770.1 kJ of energy was released by the system. What was the product, and how much of it was formed in the phase change? (dа ta: H₂O (l) → H₂O (g) ΔH = 44.01 kJ/mol.) A.

Explain the problem surrounding the ammonia-making process in terms of chemical equilibrium. Chemical equation for producing ammonia: N2 + 3H2 ⇌ 2NH3 + energy

How many Joules are equivalent to 75 Calories?

How do you balance nuclear equations?