Select the graph that shows the correct relationship between kinetic energy and mass. Hint: If one object has 2 times the mass of a second object and their speeds are the same, then the first object has 2 times the kinetic energy of the second object. KINETIC ENERGY (3) MASS (kg) 10 15 KINETIC ENERGY (3) KINETIC ENERGY (3) 10 MASS (kg) 10 15

Pls help ASAP. Pls give proper units and significant digits to three. Pls circle the final answer as well.

i need help answering this question please

Which of the following types of energy is/are classified as potential energy? 1.Thermal energy 2.Energy stored in a spring 3.Gravitational energy (A) 2 and 3 1 only 2 only 3 only 1, 2, and 3

For the following questions (Q11-Q14), consider the compound NH4Cl, ammonium chloride, having a molar mass of 53.491 g/mol. Nicole weighs out 12.41g of NH4Cl and also 125.0 g of water for her calorimetry experiment. Nicole dissolves her ammonium chloride in the water and finds that the temperature of the water decreases from 23.7°C to 17.3°C. Assume the specific heat capacity of the water, Cs,water, is 4.184 J/(g °C) and that no energy is transferred to the calorimeter (qcal = 0 J)   Q11. Find the heat (in J) transferred to the water, qwater, during the process NH4Cl (s) ® NH4Cl (aq). Use the equation qwater = mwater Cs,water ∆T.   Q13. Using your result in Q11, calculate the enthalpy of reaction, ∆Hrxn, in units of kJ/mol.

What is the kinetic energy of a 23.1 g ball moving at 39.1 m/s? Report your answer with the correct number of significant figures. Do not include units in your answer.

Convert the heat of neutralization of acetic acid from -48.6 kj/mmol to calories per millimole and ROUND TO THE NEAREST WHOLE NUMBER AND INCLUDE THE APPROPRIATE SIGN (1 cal = 4.184 J) DO NOT INCLUDE UNITS Type your answer...

question is in the photo

A chemist carefully measures the amount of heat needed to raise the temperature of a 165.0 g sample of a pure substance from -8.5 °C to 15.1 °C. The experiment shows that 541. J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 J.g .K - 1 x10 X 3

A chemist carefully measures the amount of heat needed to raise the temperature of a 1.57 kg sample of a pure substance from-1.1 °C to 8.2 °C. The experiment shows that 6.6 kJ of heat are needed. What can the chemist report for the specific heat capacity of the substance? Be sure your answer has the correct number of significant digits. -1 DJ-g K -1 10