What is the working principle of lever

A charge - 1.3 * 10-5 C is fixed on the x-axis at 7 m, and a charge 1 * 10-5 C is fixed on the y-axis at 4 m. Calculate the magnitude of the resultant electric field E~ at the origin. Answer in units of N/C.

41. Why would it be a poor idea to have the back of your hand up against the outfield wall when you catch a long fly ball?

A car has a mass of 1.20 * 103 kilograms and a momentum of 2.00 * 104 kilogram meters/second. What is the velocity of the car?

How are soundwaves different from other ways

A disk-shaped merry-go-round of radius 2.93 m and mass 135 kg rotates freely with an angular speed of 0.621 rev/s. A 62.4 kg person running tangential to the rim of the merry-go-round at 3.21 m/s jumps onto its rim and holds on.

nitially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discovered. How did the scientific world respond to this new information?

Changes in the skin color of skin are often an indication of a homeostasis imbalance which would color Suggest Addison disease?

Sobre un plano inclinado que tiene un ángulo de 30 grados se dispara un proyectil con una velocidad inicial de 50 m/s y formando un ángulo de 60 grados con la horizontal, calcular en que punto del plano inclinado pegara

How does the resistance change as you add bulbs to a series circuit? The resistance does not change. The resistance decreases. The resistance increases.

What was the acceleration of the 2 kg cart. What was the acceleration of the 4 kg cart. What was the acceleration of the 6 kg cart