Physics, 02.11.2019 04:31 LindaCat78
During world war i, the germans had a gun called big bertha that was used to shell paris. the shell had an initial speed of 1.4 km/s at an initial inclination of 65.8 â—¦ to the horizontal. the acceleration of gravity is 9.8 m/s 2 . how far away did the shell hit?
Answers: 2
Physics, 22.06.2019 07:30
The slope of a velocity time graph over any interval of time gives the during that interval
Answers: 1
Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
Answers: 3
Physics, 22.06.2019 15:10
An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 Ëšf and standard atmospheric pressure, what is the value of the mach number?
Answers: 2
Physics, 23.06.2019 01:00
To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.
Answers: 1
During world war i, the germans had a gun called big bertha that was used to shell paris. the shell...
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