Question 1. If an electric sphere has a charge of +0.655 nC what is the electric field strength for an object 50.0 m away

Question 2. An unknown planet has an average radius of 7.2 X 10^4 meters, with a mass of approximately 9.58 X 10^18 kg

Draw a picture of the unknown planet with gravitational field lines including the direction of the arrows point in the field lines.

Calculate the gravitational field strength

Question 3. If the radius of earth doubled in size and the mass tripled, what would the new gravitational field strength be!

Question 4. Of the electric field strength of a spheres is calculated to be 3.50 X 10^6 N/C when measured from 16.0cm away what is the electric charge on the sphere?

Question 5.

Mrs. Kenny is wearing a t shirt that says frequency=4.28 X 10^14 Hz” as the t shirts colour reflects that exact frequency. Calculate the wavelength and identify the colour of Mr. Kenny’s t shirt?

Question 6. At the end of their life cycle a low mass star and a high mass star will become (respectively)

A. Low mass star would be a white dwarf and high mass star would be a neutron star

B. Low mass star would be a white dwarf and high mass star would be black hole

C. Low mass star would be neutron star and high mass star would be white dwarf

D. Low mass star would be Neutron and high mass star would be Neutron star

Question 7. A certain type of EMR produced by violent explosions in space has a wavelength of 1.00 x 10^ m. This type of electromagnetic radiation can be detected by the equipment at the

A. Chandra X ray observatory

B. Algonquin radio observatory

C. Space infrared telescope facility

D. Compton gamma ray observatory