Answer:
5.37 m/s
0.98 seconds
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²
Velocity of the ball when it passes an observer sitting at a window is 5.37 m/s
Time taken by the ball to pass the observer sitting at a window is 0.98 seconds
Answer:
Required time, t = 0.84 seconds
Explanation:
It is given that,
Initial speed of an object, u = 22 m/s
Final velocity of an object, v = 27 m/s
Acceleration, a = 5.93 m/s²
We have to find the time required for an object to go a speed of 22 m/s to a speed of 27 m/s. It can be solved by using first equation of motion as:
Where
t = time
t = 0.84 seconds
Hence, the time required for an object is 0.84 seconds.
Answer:
B.) The cake rises as gas bubbles form in the baking cake.
Explanation:
I got A on the quiz
The Moon would take off in a straight line, at a constant speed, with the
same speed and direction it had at the instant that gravity got switched off.
(Of course, if ALL gravity got switched off, then the Moon would fall apart.
The radioactive and volcanic heat activity in its core would continue, and
suddenly there wouldn't be anything to hold it together. Same for the Earth.)
The constellation is the dependent variable because they depend on the stars to form them.
Stars are independent variables in this case because they do not need constellations to form them.
Constellations are dependent variables in this case because they depend on stars to form them. Constellations are literally a group of stars that make an imaginary picture to us.
