Why would physical science be used to study light emitted by a star?

O

A. Light is very pretty.

O

B. Light is a form of energy.

O

C. Stars form interesting shapes in the sky.

O

D. The positions of stars control our lives.

A human being can be electrocuted if a current as small as 48 mA passes near the heart. An electrician working with sweaty hands makes good contact with the two conductors he is holding.

What is the unit for mass?

Suppose an object has 40 N of tension force pulling it upward and 60 N of gravitational force pulling it downward. There are no forces acting on the object. The object then has a net upward force of 20 N. True or False

2 Polnis What is the main difference between weather and climate? O A. The length of time over which the conditions are measured B. The predictability of the conditions O O C. The location of the conditions being measured O D.

What is the distance from earth to sun in meters scientific notation?

Inside a stereo speaker, you will find two permanent magnets: one on the cone and one near the cone. True of false?

When a hurricane nears land what causes the most damage

Calculate if an electric hair dryer uses 2,400 j of energy in 2 s, what is its power?

Which of the following choices best represents a potential stressor?

How do you distinguish between speed, velocity, and acceleration?