A block initially at rest is allowed to slide down a frictionless ramp and attains a speed v at the bottom. to achieve a speed of 1.8v at the bottom, how many times as high must a new ramp be?

Why is gravity so weird? Will mark as brainliest

Object A has a mass of 12 g and a density of 3 g/cm3. Object B has a mass of 12 g and a density of 5 g/cm3. Which object has a greater volume and by how much? A. Object A, by 2 6 cubic centimeters B. Object A, by 1.6 cubic centimeters C.

A battery with an emf of 1.50 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 1.40 V and the current is 0.17 A. What is the value of the external resistor R?

In order to be sure a grinder used in production is operating properly, what feature of the grinder should be checked daily?

The particles that make up all matter are called

Element X has a mass number of 40 and an atomic number of 20, and element Y has a mass number of 56 and an atomic number of 26. Element X has more neutrons and fewer electrons than element Y. more neutrons and electrons than element Y.

How does mass affect average speed?

Object A attracts object B with a gravitational force of 10 newtons from a given distance. If the distance between the two objects is doubled, what is the changed force of attraction between them? A. 2.5 newtons B. 5 newtons C. 20 newtons D.

A small particle starts from rest from the origin of an xy-coordinate system and travels in the xy-plane. Its acceleration in the x-direction is 2.0 m/s2, and its acceleration in the y-direction is 1.0 m/s2.

What is a circuit, s resistance if 12v produces 2A of current?