Physics, 17.11.2020 05:50 mrnotsosmart744

As shown in the figure, a 2.00-kg block is held in place against the spring by a 50-N horizontal external force. The external force is removed, and the block is projected with a velocity v1 = 1.2 m/s at as it separates from the spring. The block descends a ramp and has a velocity v2 = 2.0 m/s at the bottom. The track is frictionless between points A and B. The block enters a rough section at B, extending to E. The coefficient of kinetic friction between the block and the rough surface is 0.30. The velocity of the block is v3 = 1.4 m/s at C. The block moves on to D, where it stops. A) What is the total energy of the spring block system before the block descends down the ramp.

B) How high is the ramp?

C) How far did the block move from B to C?

D) How far did the block move from C to D?

E) What is the work done by friction on the block from B to D?

F) What is the Mechanical energy of the spring-block system at E?

G) How much was the spring compressed by the external force

H) What is the spring constant?

As shown in the figure, a 2.00-kg block is held in place against the spring by a 50-N horizontal ex

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 19:20

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

Answers: 1

Answer

Physics, 22.06.2019 23:20

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

Answers: 2

Answer

Physics, 23.06.2019 02:30

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?

Answers: 1

Answer

Physics, 23.06.2019 11:00

Mr. polifka does a demonstration in science class. he holds an unlit match six inches above a candle flame. after a while, the match bursts into flame.

Answers: 1

Answer

You know the right answer?

As shown in the figure, a 2.00-kg block is held in place against the spring by a 50-N horizontal ext...

Questions