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initial speed: v = 72 km/h = 20 m/s. mass: m = 0.7 kg time of the impact: t = 0.1 s average force: F The speed after impact is the same as initial speed, but velocity has got ...
Imagine a following situation: a stationary (not moving) object with a mass of 5 kg is suspended in the air by two strings. The angles between strings and the vertical directions are 15 and 55 degrees. Wh...
A scalar is a quantity that has only magnitude (size)E.G Distance, Speed, TemperatureA vector is a quantity that has magnitude and a direction.E.G Displacement, Velocity, Change in Tempe...
The key equation is that of the energy of a photon.
E = hc/λ
Using λ = 550nm gives E = 3.61x10^-19...
To solve this problem, we must apply conservation of momentum. Even though there is kinetic energy being added to the probe-capsule system by the explosion, momentum will always be conserved if there a...
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