Answer:
1,809.98 lb*m/s^2
Step-by-step explanation:
First, we want to know how much weight of the boulder is projected along the path in which the boulder can move.
The weight of the boulder is:
W = 322lb*9.8 m/s^2 = (3,155.6 lb*m/s^2)
This weight has a direction that is vertical, pointing downwards.
Now, we know that the angle of the hill is 35°
The angle that makes the direction of the weight and this angle, is:
(90° - 35°)
(A rough sketch of this situation can be seen in the image below)
Then we need to project the weight over this direction, and that will be given by:
P = W*cos(90° - 35°) = (3,155.6 lb*m/s^2)*cos(55°) = 1,809.98 lb*m/s^2
This is the force that Samuel needs to exert on the boulder if he wants the boulder to not roll down.
Answer:
True solution is the homogeneous mixture , while collodial mixture and suspension are the heterogeneous of two or more substances. Another differnce is that this two types of solutions are true solution is transparent and collodial is translucent.
The line segment goes from -7 to 1.
-7 to 0 is 7 units.
0 to 1 is 1 unit.
7 + 1 = 8 units in total
The length of the red line segment is 8 units.
Hope this helps!
Answer:
No. He wrong in the 1st step . The value of x is -7 and 0 .
Step-by-step explanation:
In order to solve the equation, you have to make the equation equals to zero by substracting 12 to both sides :



Next, you have to factorize and solve it :


