Work+Force*Distance. Rearranging, F=W/d. Calculating, the force must be 0.0215 N.
Answer:
2.066 atm
Explanation:
PV = nRT increase T volume and n and R remain constant
30 C = 303.15 K 40 C = 313.15
P prop to T new P will be 313.15/303.15 * 2 atm = 2.066 atm
Answer:
240 J
Explanation:
Efficiency is given by, 
where T is temperature and subscripts s and w to represent steam and normal weather respectively. Substituting temperature of steam and normal weather with with the given figures then efficiency will be 
Also, work done by engine is given by,
W=Qe =0.48*500=240 J
Answer:
C. A baseball bat strikes a baseball.
Explanation:
Newton's second law of motion states that acceleration happens when force is applied on the mass.
<em>A baseball bat strikes a baseball is the best example of Newton's second law of motion because acceleration of the baseball is directly proportional to the force by which baseball bat hit it.</em>
Hence, the correct option is 'C. A baseball bat strikes a baseball.'
