A block of mass 0.18 kg is attached to a spring of force constant 2 N/m.The coefficient of friction between the block and the floor is 0.1.Initially the spring is unstretched and the block is at rest.
When its night, the light intensity is small as we know it. Some lights come from the moon, stars or other human made light source. But when its raining, the light reflection that travel to your eye w
What would be the impact on your life if lasers were banned?-Banned from commercial use in dvd players and other technological items?
Or, banned from private use as a nuisance?-I would have to go back
The Doppler effect is the change in a wavelength when the source of the wave is moving. You may notice this every day, if you are on the street and a car passes you. When the car is coming toward you,
Three objects A,B and C are kept in a straight line on a frictionless horizontal surface.They have masses m,2m and m respectively.The object A moves towards B with a speed of 9 m/s and makes an elasti
all i know about them is that theyre supposed to be vaguely like the energy version of dark matter or exotic matter--They are both made up?and probably provide some sort of political gain...
Seriousl
The length of the barrel of a primitive blowgun is 1.2 m. Upon leaving the barrel, a dart has a speed of 13 m/s. Assuming that the dart is uniformly accelerated, how long does it take for the dart to
and a location is a position, and a point is a position, then how am i supposed understand these concepts if they are defined within each other? my head really hurts, i get that a point has only a loc
A car, moving along a straight stretch of high- way, begins to accelerate at 0.042 m/s2. It takes the car 68.6 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in
An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees the car, the locomotive is 190 m from the crossing and its speed is
An object is moving in a straight line with a constant acceleration. Its position is measured at three different times, as shown in the table below.
Time (s) Position, (m)
50.10s,8.800 m
51.40s,14.50
You are driving home from school steadily at 65 mph for 130 miles. It then begins to rain and you slow to 55 mph. You arrive home after driving 3 hours and 20 minutes. (a) How far is your hometown fro
Use the equation V2^2=V1^2 +2a(S1-S2)
When the ball reaches max height, its velocity is 0, the acceleration is -9.8 m/s^2 and the difference in displacement is 50 m, so
0= (V1^2) 2(-9.8 m/s^2)(50m)
An object of mass 2.0 kg is placed at rest at the edge of the smooth horizontal table.The edge is 50cm above the floor.An object B of mass 1.5 kg moves towards object A at constant speed 2.0 m/s.After
