Answer:
<h2>19,600 J</h2>
Step-by-step explanation:
The potential energy of a body can be found by using the formula
PE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
We have
PE = 500 × 9.8 × 4
We have the final answer as
<h3>19,600 J</h3>
Hope this helps you
Answer:
$1.25
Step-by-step explanation:
This can best be determined using a set of linear equations that are solved simultaneously.
This pair of linear equations may be solved simultaneously by using the elimination method. This will involve ensuring that the coefficient of one of the unknown variables is the same in both equations.
Let the cost of a cookie be c, cost of a doughnut be d and that of a box of doughnut hole be h then if cost of 4 cookies, 6 doughnuts, and 3 boxes of doughnut holes is $8.15, we have
4a + 6d + 3h = 8.15
and the cost of 2 cookies, 3 doughnuts, and 4 boxes of doughnuts holes is $7.20 then
2a + 3d + 4h = 7.20
Dividing the first by 2
2a + 3d + 1.5h = 4.075
subtracting from the second equation
2.5h = 3.125
h = 1.25
The cost of a box of doughnut holes is $1.25
The component of the cars velocity eastward is 14 m/s
A vector is an quantity that has both magnitude and direction.
Vector resolution is the method of separating a vector into its horizontal component as well as its vertical component.
The horizontal component of a vector is the influence of the velocity on the object horizontally.
Given that the velocity (V) = 24 m/s, the angle (θ) = 90° - 35° = 55°
Therefore:
Car velocity eastward (Vₓ) = Vcos(θ) = 24 * cos(55) = 14 m/s
The component of the cars velocity eastward is 14 m/s
Find more at: brainly.com/question/12526159
Answer:
80
Step-by-step explanation:
<h2>Hope this helped </h2>
