A pendulum completes 30 cycles every minute. What is the frequency of the pendulum

The first simple, one-celled organisms that developed during the Precambrian era are called A. Trilobites B. Prokaryotes C. Stromatolites

A compunds whose empirical formula is xf3 consists of 65% f by mass. what is the atomic mass of x

Hich best explains why no current is induced? The wire needs to be coiled less tightly. The wire needs to be straight, not coiled. The magnet needs to be moved through the coils of wire. The magnet needs to be held above the coils of wire.

Three resistors which values of 15 ohm 40 ohm 60 ohm respectively are connected in parallel. what is their equivalent resistance? if a 115v potential difference is applied to the circuit, what is the total current through the circuit?

A 1900kg airplane is flying at an altitude of 510 above the ground. What is the gravitational potential energy in Joules?

A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What was the magnitude of its acceleration?

What happens to the period of a pendulum and the period of a spring as the amplitude of the oscillation increases? Briefly give an explanation for this relationship.

The element that is most abundant in earth is

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity