How many copies of H2O are required to balance this chemical equation? CH4 + 2O2 CO2 + __H2O A. 1 B. 2 C. 3 D. 4

What type of craft should be used for orienteering in the water?

A reactionary force when pushing

The person in the middle weighs 500 n, and the tension on the rope is 400 n. what is the weight of the scaffolding?

A Carnot engine takes 3000 J from a reservoir at 600 K, does some work, and discards some heat to a reservoir at 300 K. What is its efficiency? 50% 60% 20% 30%

What is a transverse wave? a. particles that travel parallel to the direction of energy movement b. particles that travel in a reverse direction to the direction of energy movement c.

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?