Answer:
A) 0N
Explanation:
According to Newton's 1st Law: an object in motion will keep its motion unless acted upon by a force. Hence, for an object to travel at a constant speed, no force should be exerted into the object.
Answer:104.853 kPa
Explanation:
Given
Depth of water
on the top of water a layer of oil layer is present
specific gravity of oil
Assuming Atmospheric Pressure to be
We know Pressure due to Pressure Difference is given by
Answer: Vertical height of rocket is 824.24ft
Explanation: see attachment.
Opp/ Adj = Tan 70°
h/ 300 = Tan 70°
h= 300tan 70°
h = 824.24ft
Answer:
Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape, with a profile much like that of a warrior's shield.
Explanation:
This problem is relatively simple, in order to solve this problem the only formula you need to know is the formula for friction, which is:
<span>Ff = UsN </span>
<span>where Us is the coefficient of static friction and N is the normal force. </span>
<span>In order to get the crate moving you must first apply enough force to overcome the static friction: </span>
<span>Fapplied = Ff </span>
<span>Since Fapplied = 43 Newtons: </span>
<span>Fapplied = Ff = 43 = UsN </span>
<span>and it was given that Us = 0.11, so all you have to do is isolate N by dividing both sides by 0.11 </span>
<span>43/0.11 = N = 390.9 which is approximately 391 or C. 3.9x10^2</span>