Which object represents a compound machine? @3.2.6. B4 @2

A)

Battery

B)

Pliers

C)

Match

The atomic number of a nucleus decreases during which nuclear reactions? A. Nuclear fission and alpha decay B. Nuclear fusion and beta decay (positron emission) C. Nuclear fission and beta decay (electron emission) D. Nuclear fusion and alpha decay

If 80 joules of work were necessary to move a 5 newton box, how far was the box moved?

Match the following molecules with the number of atoms they contain. 1. 2Fe 2. 2Al3O2 3. 4O2 4. 5C 5. H2SO4 Answers to the question 2 5 7 8 10

A wave has a speed of 50 m/s and a frequency of 10 Hz. Calculate its wavelength.

How is a crime scene secured?

Calculate the kinetic energy of a charging elephant if its mass is 5,000kg and it moves at 8m/s

Why is a decrease in Earth's ozone harmful to life?

What force does a window washer want acting on him when trying to keep the same position

How many Mars-sized planets can fit in Jupiter

Is tin magnetic, ferromagnetic or non-magnetic?