A 6.0-kg object, initially at rest in free space, explodes into three segments of equal mass. Two of these segments are observed to be moving with equal speeds of 20 m/s with an angle of 60 between their directions of motion. How much kinetic energy is released in this explosion?
a. 2.4 kJ
b. 2.9 kJ
c. 2.0 kJ
d. 3.4 kJ
e. 1.2 kJ
Question 2
A 2.0-kg object moving 3.0 m/s strikes a 1.0-kg object initially at rest. Immediately after the collision, the 2.0-kg object has a velocity of 1.5 m/s directed 30 from its initial direction of motion. What is the y component of the velocity of the 1.0-kg object just after the collision?
a. -3.7 m/s
b. -3.4 m/s
c. -1.5 m/s
d. -2.4 m/s
e. -4.1 m/s
The Hubble Space Telescope
Create space between metatarsals by pulling sides of foot away from each other.
An ice-free summer opens the Arctic for exploration
Foods made with fat substitutes aren’t calorie free
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...
An electron is accelerated from rest through a potential difference. After acceleration the ...