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

4. What is anti node?

Is it possible for an object that has a constant negative acceleration to change the direction in which it is moving.

How do humans contribute to eutrophication in both of these cases? ● Farms: ● Lawns:

Why is wood a renewable resource? A) We use it over and over again. B) It takes millions of years to replace. C) Trees grow everywhere, so we always have some. D) It can be replaced in a reasonable amount of time.

What is the force in if the force out was 20 Newtons and the mechanical advantage was 4?

The power of a 1.5-volt alkaline cell varies with the number of hours of operation. A brand new D-cell can deliver as much as 13 A through a copper wire connected between terminals. Determine the power of a brand new D-cell.

You measure a watch's hour and minute hands to be 7.4 mm and 12.1 mm long, respectively. Part A In one day, by how much does the distance traveled by the tip of the minute hand exceed the distance traveled by the tip of the hour hand?

Describe the possible long term impact of a catastrophic event

Calculate the mass defect of the helium nucleus 42He. The mass of neutral 42He is given by MHe=4.002603u.

A transparent film laminated to a fabric is identified in the study material as a. stretch fabric. b. PVC. c. a skin. d. two-faced fabric