What is a disadvantage of using renewable energy resources? A. They may require energy storage.
B. They do not produce greenhouse gases.
C. They can be replenished,
D. They do not pollute the atmosphere,

Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above