Speed refers to what and is it scalar or vector

If you have 430.0 mL of water at 25.00 °C and add 140.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

Given: An unbroken length of size 12 AWG conductor is looped inside a junction box so that there is more than 12 inches of free conductor. The conductor is not spliced and does not terminate on a device.

Which of these instruments is listed with the wrong type of lens that it uses? •telescope, convex •camera, convex •flashlight, concave •microscope, concave

The red shift is a phenomenon resulting from ___ A - the gravity effect B - the doppler effect C - the Copernicus effect D - the newton effect

A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet. If the bullet has a mass of 22.

What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases? A. The resistance has increased. B. The volts have decreased. C. The power has increased.

The velocity - time graph of a ball of mass 25g moving on road is as given below: (a) How much force does the road exert on the ball to bring it to rest? (b) What is the direction of the force exerted by the road?

A spring required a force of 5.0 n to compress it 0.1 m. How much work is required to stretch the spring 0.4 m?

ou purchase a rectangular piece of metal that has dimen - sions 5.0 * 15.0 * 30.0 mm and mass 0.0158 kg. The seller tells you that the metal is gold. To check this, you compute the average density of the piece.