How do physicists use science?

O A. They read books.

O B. They are always correct.

OC. They have opinions.

O D. They observe the world.

4) Electric nature of lightning was established by (a) Robert Hook (b) Isaac Newton (c) Benjamin Franklin (d) Robert Koch

Heat transfer occurs

Using the data provided in the graph and the table, interpolate to find the potential energy (U) at a height (H) of 2.5 meters and extrapolate to find the potential energy at a height of 4.5 meters.

A student who takes a multiple-choice test by reading the stem of each item, generating the correct response before looking at the choices, and then chooses the response closes to the answer is using (A) a heuristic (B) vicarious problem-solving (C)

brianna swings a ball on the end of a rope in a circle. The rope is 1.5 m long. The ball completes a full circle every 2.2s. What is the tangential speed of the ball

After the discovery of the electron, scientists knew that atoms must also have positively changed particles because? A. Atoms have mass B. Atoms have electrical charge C. Atoms have neutral charge

Use the drop down menus to complete each sentence the force applied to the physics cart is manipulated. This is the BLANK variable. The cart accelerated due to the force applied to the cart.

A car travels at 40km/hr for 2 hours and at 55 km/hr for 2 hours. How far has the car traveled? What is its average velocity?

The comparison of work output to work input is called the mechanical. advantage ... a. true. b. false

Bob, Jill, Kim, and Steve measure an object's length, density, mass, and brightness, respectively. Which student must derive a unit of measurement? A. Bob B. Jill C. Kim D. Steve