Answer:
The average speed would be 279.167 meters per second.
Explanation:
Speed is the magnitude that expresses the variation in position of an object and as a function of time. In other words, speed is defined as the relationship established between the distance traveled and the time elapsed in the movement of a mobile.
Speed can be calculated using the following expression:
In this case:
- distance= 7,035 km
- time= 7 hours
Since the required unit of speed is meter per second, then you convert from km to meters for the case of distance, and from hours to seconds for the case of time. So:
- distance= 7,035 km= 7,035,000 m (being 1 km= 1,000 m)
- time= 7 hours= 420 minutes= 25,200 seconds (being 1 hour=60 minutes and 1 minute=60 seconds)
Replacing in the definition of speed:
Solving:
Then, <u><em>the average speed would be 279.167 meters per second.</em></u>
Zeroth Law of Thermodynamics, which in turn will mean the heat will transfer between both of them up to the point where they are in thermodynamic equilibrium. So the answer is C.
Hello,
Although you can see the pencil, it appears broken in the glass of water. This is because <span>electromagnetic waves travel at different speeds through different media.
Mark brainliest if helped!</span>
Answer:
answer is B! if it adds one it becomes platinum and if it loses one it becomes mercury.
Answer:
Acceleration up the ramp = -2.745 m/
Explanation:
Given
box is pulled at angle Θ = 
Force applied F = 185N
coefficient of friction, μ
= 0.27
mass of the box m = 35 kg
We know that,
acceleration due to gravity g = 9.8 m/
horizontal component 
= F cosΘ = 185 * cos =167.67
vertical component 
= F sinΘ =185*sin = 78.18
Another vertical component is due to gravity 
, force in given by
= mg
= 35 x 9.8
= 343.35 N
Normal force 
= -
= 343.35 - 78.18
= 265.17 N
Frictional force 
= * μ
= 265.17 * 0.27
= 71.596 N
To find acceleration, we know that,
force = mass x acceleration
acceleration = 
Here force is the summation of frictional force and horizontal component of the applied force. These force act in opposite directions.
force = -
= 71.596 - 167.67
= -96.074
acceleration = 
= -2.745 m/
