A boy is pushing a 136-kg crate on a 34 degree ramp, how much force must he apply to keep it from sliding downhill and to keep it stationery?

A wire carrying a 32.0 A current passes between the poles of a strong magnet such that the wire is perpendicular to the magnet's field, and there is a 2.15 N force on the 3.00 cm of wire in the field.

4. Which of the following particles has no electric charge? a. proton c. electron b. neutron d. ion

A resistive load of 600ohms is connected to a 24V power supply. Find the current through the resistor.

Which scenarios are examples of physical changes? Check all that apply. Wood is burned in a campfire and is turned into ash and smoke. Silicon is cut into tiny pieces for computer chips. Lead is melted to form pellets.

Are there classes of inclined planes?

What is most likely the relationship between Mendel's rules of genetics and Darwin's idea of biological evolution? Mendel's genetics states laws that are now part of the theory of biological evolution.

Why would it be a problem if your household appliances were connected in a series circuit

An object with a mass of 100 g is in free fall. What is the speed of the object after it has fallen for 4 seconds? A. 39 m/s B. 9.8 m/s C. 25 m/s D. 96 m/s

How was the water filtered to remove debris and living organisms?

What causes physical vibrations in transformers at twice the frequency of the AC power involved.