Similarity: Speed and velocity both represent a way to measure the change in position of an object relative to time. in fact for a straight line motion the speed and velocity of an object are the same .speed and velocity are measured in the same unit Difference: Speed is the ratio of the distance travelled over the time taken to travel .it gives us an idea of how fast an object is moving .it is a scaler quantity .that is it only have a magnitude but no direction Velocity r is the ratio of displacement and the time taken for this motion .it gives us an idea of how fast the object is changing its position. velocity is a vector quantity and has both magnitude and directio

Follow the steps provided in the simulation to add water to the graduated cylinder, select one of the three samples (copper, silver, or gold), set its mass to the values given in the statements below, and calculate its density. here is a summary of the steps required: add water by clicking and holding prepare a known volume of water button. until the desired volume of water has been added. if more than the desired volume is added, click the reset button. button and redo the procedure. a single click will add about 21.0 ml of water. to set the mass, click and hold weigh out metal button. until the desired amount of metal is added to the weighing pan. once the desired mass of the metal is added, release the button. transfer the metal to water and then click on calculate density button. to see how the density is calculated using water displacement to measure the volume of the solid. to save time you can approximate the initial volume of water to â±1 ml and the initial mass of the solid to â±1 g. for example, if you are asked to add 23 ml of water, add between 22 ml and 24 ml. which metals in each of the following sets will have equal density? check all that apply.

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?