Answer:
C) either of these depending on speed
Explanation:
In classical mechanics, the momentum of a body is defined as the product of its mass and its velocity at a given time. Although the bullet has a smaller mass than the container ship, its momentum may be greater or lesser than container ship's, depending on its speed.
Refer to the diagram shown below.
The angle is in quadrant 4, therefore cos θ is positive.
The length of the hypotenuse is determined from the Pythagorean theorem as
c² = 3² + 4² = 25
c = 5
Calculate cosine of the reference angle.
cos θ = 3/5
Answer: 3/5
Answer:
Explanation:
<u>The pressure of a Fluid</u>
A fluid of density exerts pressure at a distance y (deep) given by
Where g is the acceleration of gravity or
This formula computes the pressure assuming the initial pressure is 0 at fluid (water in this case) level.
Knowing the measured pressure, we can know how deep the diver went by solving the equation for y
Let's plug in the given values
Thus
Answer:
The answer is 18 N.
Explanation:
A force can be divided into components x and y components. The component along the x-axis is called the horizontal component and along the y-axis is called the vertical component. In this case, as the force is in a horizontal direction and is also known as x-component of force. The x- component of force is
Fx = Fcosθ
Fx = 22(cos 35°)
Fx = 22 x 0.819
Fx = 18 N
Child's horizontal pull forces are equal to that of frictional resistance force on the wagon.