Arocket moves at the speed of 4.9 miles per second. ben writes the following steps to calculate this speed in kilometers/hour (km/h). [1 mile = 1.6 kilometer] step 1: multiply 4.9 by 1.6. step 2: divide the result obtained in step 1 by 60. step 3: multiply the result obtained in step 2 by 60. step 4: write the number obtained in step 3 with the unit km/h. which step is incorrect in the conversion?

The correct answer is Step 2. Step 2 is incorrect in Ben's calculation.

Step 2: Divide the result obtained in step 1 by 60.

Ben should have multiplied by the result obtained in step 1 by 60. That give the km covered per minute. This is because 60 sec is equal to 1 min.

In 1 sec the distance covered is (4.9 x 1.6) km

So in 60 sec or in 1 min the distance covered will be (4.9 x 1.6 x 60) km

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.