A little boy pushes a wagon with his dog in it. The mass of the dog and the wagon together is 45 kg. The wagon accelerates at. 85 m/s2. What force is the boy pulling with?

What do peaked roofs, convertible tops, and airplane wings have in common when air moves faster across their top surfaces?

Which description does the phrase "mechanical advantage" most closely relate to?

One major difference between the innerand outer planetsis that the

A 25-newton weight falls freely from rest from the roof of a building. What is the total distance the weight falls in the first 1.0 second? (1) 19.6 m (3) 4.9 m (2) 9.8 m (4) 2.5 m

Can someone write me a story of a rock? (including like igneous, metamorphic, and sedimentary rocks?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.

Explain what each of the following scientists contribute to the atomic theory

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.

Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source of energy? a. the heat released from a living organism: potential energy b.

What should you do when operating a boat in large waves and high wind?