Which force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2? a.) 0.25 n b.) 49 n c.)196 n d.)748 n

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

Which of the following are guidelines to follow for obtaining accurate observations

1700 j of energy is lost from 0.14 kg object , the temperature decreases from 50°c to 45°c what is the specific heat of this object, amd what is the material ?