Reagan has a an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If she collected all of the pieces of the cup, how much mass would all of the pieces have combined?

Related Questions

• A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.50 m/s and observes that it takes 1.2 s to reach the water. How high above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable. Round your answer to the nearest whole number.
• A hammer taps on the end of a 3.4-m-long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travels through the air. The pulses are separated in time by 8.40 ms .What is the speed of sound in this metal?
• In ______ I of meiosis, the chromosomes all line up in pairs in the middle.
• 1. Laser beam with wavelength 632.8 nm is aimed perpendicularly at opaque screen with two identical slits on it, positioned horizontally, and close enough so that both of them fall in the beam cross section. By shifting vertically the screen, each slits can be illuminated independently, allowing the other to be disregarded. On an observation screen positioned 1m further from the opaque screen, the diffraction patterns from the independent slit illumination were found identical, with minima 6.5 mm apart. The interference pattern maxima from simultaneous illumination of both slits were 0.53 mm apart. What are the double slit characteristics (slit width, slit separation)
• A 54 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. The acceleration of gravity is 9.8 m/s 2 . Find her altitude as she crosses the bar. Neglect air resistance, as well as any energy absorbed by the pole. Answer in units of m
• Explain why gases make better thermal insulators than solids or liquids
• How many neutrons does element X have if its atomic number is 39 and its mass number is 79?
• Two small, conducting spheres, initially uncharged, are brought into contact and given a total charge of 5.00x10^4 electrons. The spheres are then separated until their centers are 12.0 cm apart. Assuming the total number of electrons on the spheres remains the same as they are separated: a) What is the magnitude of the force that each sphere exerts on the other? b) Is the force attractive or repulsive?
• Two ships, A and B, leave port simultaneously. Ship A travels northwest at 21 knots, while Ship B proceeds at 25 knots in a direction 32° west of south. Using 1 knot as equal to 1 nautical mile per hour: (a) We must calculate the magnitude of the velocity of Ship A relative to Ship B in knots. (b) Determine the direction of Ship A's velocity relative to Ship B, measured with respect to east. (c) We need to find out after how many hours the ships will be 180 nautical miles apart. (d) Finally, we'll determine the bearing of Ship B relative to Ship A at that time, using east as the positive x-direction and measuring north of east as a positive angle, with angles ranging from -180 degrees to 180 degrees, rounded to the nearest degree.
• 1. A wheel has a radius of 4.1 m. How far (path length) does a point on the wheel travel if the wheel is rotated through angles of 30◦ , 30 rad, and 30 revolutions, respectively?