C
Crazy4someone
Guest
"i just need the answer without any explanations plz"
Light travels at a speed of about 3.00 multiplied by 108 m/s.
(a) How many miles does a pulse of light travel in a time interval of 0.100 s, which is about the blink of an eye?
(b)Compare this distance to the diameter of Earth.
(2)The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). Suppose a car is designed to accelerate at this rate. How much time (in seconds) would be required for the car to accelerate from rest to 52.8 miles per hour? (The car would need rocket boosters!)
(3)It is possible to shoot an arrow at a speed as high as 124 m/s.
(a) If friction is neglected, how high would an arrow launched at this speed rise if shot straight up?
(b) How long would the arrow be in the air?
A small mailbag is released from a helicopter that is descending steadily at 2.00 m/s.
(a) After 4.00 s, what is the speed of the mailbag?
(b) How far is it below the helicopter?
Light travels at a speed of about 3.00 multiplied by 108 m/s.
(a) How many miles does a pulse of light travel in a time interval of 0.100 s, which is about the blink of an eye?
(b)Compare this distance to the diameter of Earth.
(2)The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). Suppose a car is designed to accelerate at this rate. How much time (in seconds) would be required for the car to accelerate from rest to 52.8 miles per hour? (The car would need rocket boosters!)
(3)It is possible to shoot an arrow at a speed as high as 124 m/s.
(a) If friction is neglected, how high would an arrow launched at this speed rise if shot straight up?
(b) How long would the arrow be in the air?
A small mailbag is released from a helicopter that is descending steadily at 2.00 m/s.
(a) After 4.00 s, what is the speed of the mailbag?
(b) How far is it below the helicopter?