A tow truck exerts a force of 3000 N on a car that accelerates at 2 m/s2. What is the mass of the car?
A) 500 kg
B) 1000 kg
C) 1500 kg
D) 3000 kg
E) none of these
Answer: C
You might also like to view...
Based on what you have learned from your rankings in Parts A and B which statement best describes how variation in the Earth-Sun distance affects the seasons?
A. No matter where you live or what the seasons, it is generally hotter when Earth is closer to the Sun and colder when Earth is farther from the Sun. B. The variation in Earth-Sun distance over the course of each year has virtually no effect on the seasons. C. Summer occurs when Earth is closer to the Sun and winter occurs when Earth is farther from the Sun
Which object has the most kinetic energy?
A) a 4-ton truck moving 50 km/hr B) a 3-ton truck moving 70 km/hr C) a 2-ton truck moving 90 km/hr D) a 1-ton truck moving 110 km/hr E) A, B, C, and D all have the same kinetic energy.
A violation of the second law of thermodynamics would occur if
a. a ball lying on the ground started to bounce. b. transfer of energy by heat moved energy from an object at low temperature to an object at a higher temperature. c. a refrigerator heated the air in the room in which the refrigerator is located. d. any of the above occurred. e. (a) or (b) occurred, but not (c).
One limit on the age of the Universe is that it must be older than the oldest stars.
Answer the following statement true (T) or false (F)