Explanation:
To determine which force does more work, we can calculate the work done by each force using the formula:
Work = Force × Distance
For the first scenario:
Work = 500 N × 10 m = 5000 N·m
For the second scenario:
Work = 100 N × 40 m = 4000 N·m
Therefore, the force of 500 N moving through 10 m does more work, with a total of 5000 N·m.
Answer:
velocity
Explanation:
The pet turtle is moving at a certain speed, and to determine how slow it's moving, we can calculate its speed.
Speed is a scalar quantity, which means it only has magnitude and no direction. Velocity, on the other hand, is a vector quantity and includes both magnitude and direction.
To calculate the speed of the turtle, you can use the formula for speed:
Speed (S) = Distance (D) / Time (T)
In this case, the turtle moves 30.1 mm in 72 seconds:
S = 30.1 mm / 72 s
To make the units more convenient, we can convert millimeters to meters (1 meter = 1000 millimeters):
S = (30.1 mm / 1000) m / 72 s
S ≈ 0.000301 m / 72 s
Now, let's calculate the speed:
S ≈ 0.00000418056 m/s
So, the pet turtle is moving at a speed of approximately 0.00000418056 meters per second.
It's important to note that this is indeed a speed, not a velocity, because it only provides the magnitude of the motion (how fast it's moving) without specifying a direction.
Answer:
The answer is B.
Explanation:
Given that the current (Ampere) in a series circuit is same so we can ignore it. We can assume that the total voltage is 60V and all the 3 resistance are different, 20Ω, 40Ω and 60Ω. So first, we have to find the total resistance by adding :
Total resistance = 20Ω + 40Ω + 60Ω
=120Ω
Next, we have to find out that 1Ω is equal to how many voltage by dividing :
120Ω = 60V
1Ω = 60V ÷ 120
1Ω=0.5V
Lastly, we have to calculate the voltage at R1 so we have to multiply by 20 (R1) :
1Ω = 0.5V
20Ω = 0.5V × 20
20Ω = 10V
the answer is 11 km/h ... i just took the test