A ruby laser beam is reflected from the surface of a CD onto a wall. The brightest spot is the reflected beam at an angle equal to the angle of incidence. However, fringes are also observed. If the wall is 1.8 m from the CD, and the first bright fringe is 0.880 m from the central maximum, what is the spacing (in m) of grooves on the CD
Answers: 1
Physics, 21.06.2019 15:30
A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision
Answers: 3
Physics, 22.06.2019 04:30
The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
Answers: 1
Physics, 22.06.2019 16:00
Agroup of monkeys is trying to cross the river in a rowboat. the maximum buoyant force on the rowboat is 2,000 n. the weight of the rowboat is 1,000 n. each monkey has a weight of 150 n. how many monkeys can safely cross in the rowboat at one time? explain your reasoning, including any calculations you used to find the answer.
Answers: 1
Physics, 22.06.2019 18:20
Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b
Answers: 2
A ruby laser beam is reflected from the surface of a CD onto a wall. The brightest spot is the refle...
Biology, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
Spanish, 04.03.2021 03:20
Biology, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
World Languages, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
Physics, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
Mathematics, 04.03.2021 03:20
English, 04.03.2021 03:20