What can be used to detect the powerful beams of cosmic microwave background radiation that can be detected on Earth? red giant magnets

circumpolar satellites

digital cameras

radio telescopes

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?