A 40 kg mass is dropped from a tall rooftop and accelerates at 9.8 m/s2

. What is the weight of

the dropped object?

A) 392 N

B) 9.8 N

C) 40 N

D) 0 N

Because stars are said to have a life cycle, we expect that they will eventually die cease to have an orbit continue to move in circular orbits create living organisim

c) What is moment of inertia? How is it defined (write an equation, explaining all the terms) ? What is the parallel axis principle for moment of inertia?

100Gw x 35ms (note: a watt is a joule per second)

Ike is cutting the grass using a human-powered lawn mower. he pushes the mower with a force of 45 n directed at an angle of 41° below the horizontal direction. calculate the work that mike does on the mower each time he pushes it 9.

Uses of solar cells?

What's are some forms of chemical energy

True or false a liquid does not have a definite shape, but it does have a definite volume.

HOw are ferns and trees alike and different and what would survive longer without rain fern or tree

1. Using Pj = e^-BE/Z in the Gibb's form for the entropy, show that F = kb Tln (Z), where F = U - TS is the Helmholtz free energy. Here Z= e^-BE is the canonical partition function ...

Modern oil tankers weigh over a half-million tons and have lengths of up to a quarter of a mile. Such massive ships require a distance of 5.0 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h.