Which of the following is an element?

A. Water

B. Carbon Dioxide

C. Oxygen

D. Ammonia

A bullet with mass 0.04000 kg, traveling at a speed of 310.0 m/s, strikes a stationary block of wood having mass 6.960 kg. The bullet embeds into the block. The speed, in m/s, of the bullet-plus-wood combination immediately after the collision is

Pepe and alfredo are resting on an offshore raft after a swim. they estimate that 3.00 m separates a trough and an adjacent crest of surface waves on the lake.

A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 n. starting from rest, the sled attains a speed of 2.0 m/s in 8.0 m.

a block of mass 10 kg is kept on a horizontal surface of coefficient of friction 0.1 if horizontal force of 5N acts on body then fractional force is equal to

Which of the following statements is true about magnetic fields. Magnets and magnetic fields were only just discovered in the last 500 years. The earth's magnetic field is confined within the core of the earth.

Where in the body does neutral, acidic and basic (alkaline) solutions usually exist?

What is the current in a circuit with a 12.0 V battery and a 4.0 Ω resistor?

Three resistors, R1 = 10 Ω, R2 = 20 Ω and R3 = 30 Ω are connected in series to a 12 V battery. Find: a. The equivalent resistance of the circuit. b. The current in each resistor. c. The voltage across each resistor. d.

What are the basic rules of basketball? Are the rules different for men's versus women's competition?

A note is being played on a string on a guitar. The string is then pushed to the side while still in contact with the same fret. What happens to the frequency of the note then played compared to the original note?