One end of a horizontal spring with force constant 76.0 N/mN/m is attached to a vertical post. A 4.00-kgkg can of beans is attached to the other end. The spring is initially neither stretched nor compressed. A constant horizontal force of 53.0 NN is then applied to the can, in the direction away from the post.

a. What is the speed of the block when the spring is stretched 0.400 m?
b. At that instant, what are the magnitude and direction of the acceleration of the block?

Yup no bull frogs here man

B) as the temperature increases, the kinetic energy of the particles increases.|-/

How many calories in food

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.