Meanings of equal mass in English

Five hundred grams of antimatter rushed to embrace an equal mass of ordinary matter.

We will replace it on the booster with a manned spacecraft of equal mass.

Others have perhaps been equally laborious, and have collected an equal mass of materials.

Making even one would equal mass murder.

It supports the hypothesis that, on an equal mass basis, particle health effects differ due to differences in compositions and size.

Results: Inflammatory responses to ambient PM varied markedly on an equal mass basis, with PM(2.5-10) displaying the largest signals and contrasts among sites.

Take three or more equal masses.

Going back to Isaac Newton and his second law of motion it's abundantly clear: force equals mass times acceleration.

Momentum equals mass x velocity.

I assume that as a physicist, you say, "Force equals mass times acceleration," and you can explain why.

"It's the old, 'momentum equals mass times velocity,' business we had in mechanics."

By the same line of reasoning, force still equals mass times acceleration no matter how big your magic wand might be.

But her movement had been quick and for an acrobat, energy equaled mass: weight that pulled her through the rotation of the move.