A plate falls vertically to the floor and breaks up into three pieces, which slide along the floor. Immediately after impact, a piece of mass 332 g moves along the x-axis with a speed of 1.45 m/s, and a piece of mass 325 g moves along the y-axis with a speed of 1.13 m/s The third piece has a mass of 136 g. What angle, in radians, does the third piece's initial velocity make with the positive x-axis

What are the phases shown in a and d called?

There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit: