Question

question 3 (1 point)
assume that the force of the gravitational field strength on the surface of mars is 3.70 n/kg. an astronaut is standing on the surface of mars. in his spacesuit he has a mass of 215 kg. what would his weight be at that location?
854 n
796 n
116 n
58.1 n
question 4 (1 point)
which of the following is a source of a magnetic field?
a current-carrying coil of wire
a large iron sphere
an ebonite rod
an electrically charged cloud

Explanation:

Question 3

Step1: Recall the formula for weight

Weight \( W \) is calculated using the formula \( W = m \times g \), where \( m \) is mass and \( g \) is gravitational field strength.

Step2: Substitute the given values

Given \( m = 215 \, \text{kg} \) and \( g = 3.70 \, \text{N/kg} \), we substitute into the formula: \( W = 215 \times 3.70 \)

Step3: Calculate the product

\( 215 \times 3.70 = 795.5 \approx 796 \, \text{N} \)

A current - carrying coil of wire produces a magnetic field (due to the flow of electric current, as per electromagnetism principles). A large iron sphere is just a magnetic material but not a source of a magnetic field on its own (unless magnetized, but the option doesn't imply that). An ebonite rod is related to static electricity, not magnetic fields. An electrically charged cloud is related to electric fields, not magnetic fields.

Answer:

B. 796 N

Question 4