A black hole is a star that has

begun to collapse in on itself

too little gravity to emit light

gotten to the middle of its life

become too bright to see

The number of current paths in a series circuit is: a. one c. three b. two d. four

Polaczono szeregowo cewke ul=120 rezystor ur=100 i kondensator uc=50 Napiecie miezone voltomierzem nie moze byc: u>100 u<100 u=100 Prosze pomozcie licze na szybka odp

In which situation is the object experiencing unbalanced forces? A) A box resting on a horizontal floor. B) A car slowing as it reaches a traffic light. C) A car with its cruise control set to 30 km/h.

Which type of reaction is shown in this energy diagram? Energy Products Activation Energy Reactants Time O A. Endothermic, because energy is absorbed from the surroundings O B. Exothermic, because energy is absorbed from the surroundings O C.

A sheet of paper has a mass of 5 grams. The paper is dropped from a high building twice (it reaches terminal speed in both cases), once as a flat paper of area 600 cm2 and once crumpled as a ball of radius 2 cm.

Explain why models are often used to study other planets.

The main factors that affect an area's temperature are prevailing winds and mountains. a. True b. False

What is the displacement of an object during a specific unit of time?

Is there an end of rainbow

A downhill skier was able to move 560 meters in 25 seconds. What is the skier's average speed? (Round your answer to the nearest tenth of a meter per second.)