Search
Determine the force of gravity of a person if the distance is 10 times from Earth's center and when the force of gravity of an average person on Earth's surface is about 700 N.
Distance between interference fringes. Width of an interference fringe.
Refraction of a plane wave at the interface between two dielectrics.
Reflection of a plane wave at the interface between two dielectrics.
2. Using the table of constant, solve the friction of a 1,500 kg car if the driver applies the brakes on a concrete road (x), (a) on dry road
(b), on wet road
1.) How much impulse does a 10 N force produce if it is applied in 0.05s?
2.) A 0.80kg object at rest is given a force of 4.0N during a time interval of 2.0s What is the velocity of the object at the end of this time interval ?
3.) A 5.0kg ball rolls into a pillow at 2.0 m/s and stops in 5.0s, what is the average force exerted on the pillow?
4.) A 1500kg car moving east speeds up uniformly from 5.0 m/s to 30m/s in 8.0s. What constant force acts on the car
5.) How long must a 1500N force act on a 50kg cart to increase its speed from 50 m/s to 150 m/s
6.) A 300g ball moving at 20 m/s is hit by a bat. After the impact, the ball rebounds at the same speed along the same line. What was the impulse exerted by the bat on the ball?
What is the differences between these two equations?
1- "\\upsilon"x = "dx\/dt"
and
2- "\\upsilon"x = "\u2202x\/\u2202t"
In my book there are equations use d and others use ∂.
Please tell me the differences.
A car travels with a constant speed of 8 m/s. The car’s engine produces a 5699 N pushing force in order to keep the speed constant. How much power is developed by the engine?
A beam of 1MeV electrons strikes a thick target. For a beam
current of 100 microamperes, find the power dissipated in the
target.
. Estimate the time required for a 5 MeV alpha particle to slow down
and stop in silicon. Repeat for the same particle in hydrogen gas
