cookbook fixed

Author: tymekaxai

.DS_Store

@@ -0,0 +1,16 @@
+{
+  "custom_1": {
+    "Potential energy": {
+      "Value": 2.0,
+      "Units": ""
+    },
+    "Kinetic energy": {
+      "Value": 1.0,
+      "Units": ""
+    },
+    "Total mechanical energy": {
+      "Value": -4.0,
+      "Units": ""
+    }
+  }
+}