Answer:
T
Explanation:
= Power of the bulb = 100 W
= distance from the bulb = 2.5 m
= Intensity of light at the location
Intensity of the light at the location is given as
= 1.28 W/m²
= maximum magnetic field
Intensity is given as
T
Answer:
t = 25.5 min
Explanation:
To know how many minutes does Richard save, you first calculate the time that Richard takes with both velocities v1 = 65mph and v2 = 80mph.
Next, you calculate the difference between both times t1 and t2:
This is the time that Richard saves when he drives with a speed of 80mph. Finally, you convert the result to minutes:
hence, Richard saves 25.5 min (25 min and 30 s) when he drives with a speed of 80mph
Answer:
Acceleration is the derivative of velocity with time, but velocity is itself the derivative of position with time.
Explanation:
Hello
we can use the equation
E=mc️T
If we rearrange this to get the mass our new equation is
E/cT=mass
We have
E as 650J
c as 130J/kg⁰
️T as 45-19=26⁰
E/c️T=m
650/(130*26)=0.19 kg
That's your answer, hope it helps!
Also just a note T here is denoted as delta T showing change in temperature
