Aman climbs a wall that has a height of 8.4 meters and gave the potential energy of 4620 joules. his mass is kilograms?

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this