Answer:
a).The ball fall by d=8.75m height
b). The ball is falling at time t=1.63s
Explanation:
The problem have no question to answer however typical questions are:
a).By how much does the ball clear or fall short of clearing the crossbar?
b) Does the ball approach the crossbar while still rising or while falling?
,, ,.
The time to get the distance
a).
Now find the ball's height at this time
b).
Now find the reach maximum height if the football reaches is is maximum height
Solve to t
Answer:
A. it is near the inside surface of the balloon
Explanation:
As we can see in the question shown above, the electric charge is distributed on the surface of a spherical conductive envelope, a balloon. This means that the surface of the balloon becomes automatically energized and the regions closest to that surface experience greater electrical force. With this we can affirm that the center of the balloon has a lesser electrical force, since it is the region farthest from the surface.
Based on this, we can say that the particle that is inside the balloon will be subjected to a greater electrical force when it is close to the inner surface of the balloon.
Answer:
Person in the Control group: SpongeBob
Independent variable: Muscle cream
Dependent variable: Amount of muscle power
Larry's conclusion should conclude that the MUSCLE CREAM double a person’s muscle power when used as part of a muscle-building workout.
Explanation:
Independent variable is the variable that is changed or manipulated by the experimenter in an experiment. In this experiment, the MUSCLE CREAM is the variable being changed for the groups i.e. Patrick and SpongeBob. Hence, the MUSCLE CREAM is the independent variable.
The dependent variable is the variable that responds to changes made to the independent variable. In this experiment, the dependent/responding variable is the AMOUNT OF MUSCLE POWER.
Control group is the group of an experiment that does not receive the experimental variable (muscle cream). In this experiment, the person that does not receive the experimental variable is SpongeBob i.e. was lathered with the regular lotion.
Larry, who is the one conducting the experiment, should conclude that MUSCLE POWER doubles a person’s muscle power when used as part of a muscle-building workout.
With the assumption that the acceleration due to gravity is 9.8m/s^2 and that the upwards direction is positive:
We can use the kinematics equation,
, where v is velocity, a is acceleration, and S is displacement. Initial velocity is given as 5.4 m/s. We know final velocity is 0, because we want to know the displacement at the peak of the tennis ball's motion. Acceleration is -9.8m/s^2. Just plug in these values to find the displacement:
So the tennis ball goes 1.51 meters upwards.
<span><span>A dragster going at 5 m/s north increases
its velocity to 23 m/s north in 4 seconds. What is its acceleration during this
time interval? In order to calculate the acceleration of the boat we first have
to identify the suited formula for acceleration in this scenario. </span>
<span>Hence, a = vf – vi / t. Vi = 5 m/s Vf = 23 m/s T =
4 seconds </span>
<span>Solution: </span>
<span>A = 23 m/s – 5m/s / 4s </span>
A = 4.5m/s^2 </span>