Physics, 22.05.2020 22:06 marelinatalia2000
An object is placed very close to the focal point of a concave spherical mirror, but not precisely at the focal point. Where does the image form?
very far away from the mirror
very close to the focal point
very close to the surface of the mirror
very close to the center of curvature
Answers: 2
Physics, 22.06.2019 03:30
Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse
Answers: 3
Physics, 22.06.2019 09:00
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.
Answers: 3
Physics, 23.06.2019 04:10
Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.
Answers: 2
Physics, 23.06.2019 04:31
A90db sound wave strikes an eardrum whose area is 5.0ร10^-5m^2. how much energy is absorbed by the eardrum per second
Answers: 1
An object is placed very close to the focal point of a concave spherical mirror, but not precisely a...
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