determine the smallest mass of lead that when tied using a string to a wooden boat on a pond will be enough to sink the toy boat. assuming specific gravity of wood is 0.5 and density of water is 1000kg per cubic metre?

A mother and daughter are on a seesaw in the park. How far from the center must the 111 lb mother sit in order to balance the 65 lb daughter sitting 8 ft from the center?

Which has more significant figures 3.456 or 2.0002?

How is the movement of the electrons different when the two hydrogen atoms are brought together

When a device is used in a circuit in which the voltage is 81 V, the current flowing through the device is 3a. what is the resistance of the device?

A car traveling on a street stopped 30 meters after the brakes were applied. About how fast was the car traveling?

What is the innermost layer of the sun's atmosphere called?

Suppose 3 neutrons are released by an atom of U-235 in the first stage of a fission chain reaction. Each of these neutrons has enough energy to cause another fission reaction in another nucleus of U-235, releasing more neutrons.

What is empirical evidence and what's is it not

What is orbital radii?

Which statement about our solar system is false? a. The Kuniper Belt is between Uranus and Neptune. b. The Sun is the only star in our solar system. c. Our solar system is made up of the Sun and other objects that orbit the Sun. d.