Mechanics | Relativity Answers

An electron of mass 9.1 x 10^-31 kilograms inside a special vacuum chamber at Caltech undergoes acceleration of 3 x 10^4 m/sec^2 caused by an electrostatic force. Determine the force applied to the electron.

write the equation of motions of simple harmonic oscillator which has an amplitude of 5 cm and it executes 150 oscillation in 5 minutes with an initial phase of 45 degree also obtain the value of its maximum velocity

A person travels by car from one city to an-
other. She drives for 28.2 min at 73.8 km/h,9.
9 min at 105 km/h, 49.3 min at 47 km/h,
and spends 10.3 min along the way eating
lunch and buying gas.
Determine the distance between the cities
along this route.
Answer in units of km

the board is pivoted at f and a steel spring s holds the board in a horizontal position the diver weighs 640N and stands still with gravity directly above a point 1.8M from F as shown calculate the moment of the weight of the diver

An electric motor running at 1750 rev/min drives a pump through single-stage reduction gearing. The motor pinion has 16 teeth and the spur gear on the pump shaft has 80 teeth. At what speed will the pump rotate?

A plane starts from rest and travels 800m down a runway in 14
seconds. What is the acceleration of the plane?

How many (whole number of) 76 kg people
can safely occupy an elevator that can hold a
maximum mass of exactly 1 metric ton? A
metric ton is 1.000 × 103 kg.
Answer in units of people

A man of weight 667.5N stands on the middle position of a 222.5N ladder. The upper end B rests on the corner of a wall while lower end A is attached to stop to prevent slipping. The height of end B from ground is 3.66m while end A is 1.83m away from wall. Find the reaction forces at A & B.

Q.A car travelling at 60 km/hr overtakes another car travelling at 42 km/hr. Assuming the car to be 5 m long, the total road distance used for the overtake?

what net braking force must be applied to stop a car with mass of 900kg initially travelliing at velocity of 100kmh-1 within a straight line distance of 50m?