All Type II supernovae produce neutron stars when they collapse
Indicate whether the statement is true or false
FALSE
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The region around 2b has far fewer craters than the region around 2c) The crater floor at 2a is also flat and smooth, without many smaller craters on it. Why are regions 2a and 2b so smooth?
A) Few small craters ever formed in these regions. B) Erosion erased craters that once existed in these regions. C) Lava flows covered craters that once existed in these regions.
Red Rover, Red Rover, let Leslie come over. In this childhood game, you try to stop and catch a person who is running directly at you. Who would you rather pick?
A. Sean, who weighs 350 N and can run 5 m/s. B. Meihong, who weighs 250 N and can run 8 m/s. C. Deidra, who weighs 300 N and can run 3 m/s.
A changing electric field induces a changing
A) magnetic field. B) electromagnetic field. C) both of these D) neither of these
A 2.0-kg block slides on a rough horizontal surface. A force (P = 6.0 N) is applied to the block as shown. The magnitude of the block's acceleration is 1.2 m/s2. What is the magnitude of the force of friction acting on the block?
A. 2.0 N B. 1.4 N C. 1.6 N D. 2.8 N E. 3.4 N