It a because I learn it in class today
The amount of time saved on the 86.0 mile trip from Tulsa entrance to Oklahoma City is 0.42 hours
<h3>What is time?</h3>
Time is the measurement of a past, present, or future event. The S.I unit of time is seconds (s)
To get the time that was saved on the 8.6-mile trip, we use the formula below.
Formula:
- Ts = (d/v₁)-(d/v₂)................. Equation 1.
Where:
- Ts = Time saved on the trip
- d = distance covered during the trip
- v₁ = Initial legal speed limit
- v₂ = final/current legal speed limit.
From the question,
Given:
- d = 86.0 mile
- v₁ = 55.0 mi/h
- v₂ = 75.0 mi/h
Substitute these values into equation 1
- Ts = (86/55)-(86/75)
- Ts = 1.564-1.147
- Ts = 0.42 h.
Hence, The amount of time saved on the 86.0 mile trip from Tulsa entrance to Oklahoma City is 0.42 hours.
Learn more about time here: brainly.com/question/13893070
12 increase When force is multiplied by the distance over which it is applied, that amount is given ... force * distance = work
The electrostatic force between two charges is given by
where
k is the Coulomb's constant
q1 and q2 are the two charges
r is their separation
In this problem, the two charges are identical, so we can call them q1=q2=q, and the formula becomes
Since we know the magnitude of the force and the separation between the two charges, we can re-arrange the equation to find the value of each charge:
Answer:
0.0118125 (kg)
Explanation:
mass = density x volume
First, find the volume of the cube as you're already given the density. You're also given the length of the cube, 1.5 cm. You need to convert this to m since the density's unit is kg/m^2
1.5cm x (1m/100cm) = 0.015m
Since Volume = (length)^3,
Volume of the cube = (0.015)^3
Volume of the cube = 3.375*10^-6
So mass of the cube = (3500)(3.375*10^-6) = 0.0118125 (kg)
