What is the answer for this in scientific notation (6.77 x 10³) + (5.85 x 10³) = ?

Two asteroids in outer space collide and stick together. The mass of each asteroid, and the velocity of each asteroid before the impact, are known.

Brianna weighs 425 N. She climbs a flight of stairs to a height of 8 m. It takes her 6 seconds. How much work does Brianna do when she climbs the stairs? A. 71 J B. 2550 J C. 3400 J D. 53 J

Earth's energy (blank) is a description of how Earth uses the energy from the Sun as it flows in and out of the Earth system.

A 235-kg crate is pushed horizontally with a force of 791 n. if the coefficient of kinetic friction is 0.25, calculate the acceleration of the crate.

What is one symptoms of heat stroke?

Suppose s (t) is the position of an object moving along a line at time t is greater than or equal to 0. What is the average velocity between the times t=a and t=b? What is the instantaneous velocity at t=a?

Estimate how long it would take one person to mow a football field using an ordinary home lawn mower. suppose that the mower moves with a 1-km/h speed, has a 0.5-m width, and a field is 360 ft long and 160 ft wide. 1 m = 3.281 ft.

Badri makes the table below to review the factors that affect the electric force between objects. Which change will correct the error in Badri's table?

A star with the same mass of the sun has a newly discovered planet whose semi-major axis of 2.48 au and an eccentricity of 0.08. what is the aphelion distance of the new planet

A weather balloon is inflated to a volume of 2.2 x 10^3 L with 374 g of helium. What is the density of helium in grams per liter?