Answer:
Evan drive at speed = 81.67 m/hr
Explanation:
Normal speed of Evan = 70 m/hr
Time taken by Evan to visit his grandmother = 35 min = hr
Distance covered by Evan = =
= miles
According to the problem, one day Evan was running 5 minutes late. So, the time Evan has to visit his grandmother is 30 mins.
To reach on time, Evan should be drive at the speed :
Speed =
=
= 81.67 m/hr
Answer: The reason weight for average adult is 530N
Explanation: The clearly see this answer, let's convert this weight to kg using F=mg
530=m×9.8
g is a constant of 9.8m/s2
We divide both sides by 9.8 to get
54kg then this weight is reasonable for an average adult.
Five
<u>Givens</u>
B = 18 m
Theta = 112o
<u>Solve</u>
By = 18*sin(112) = 16.68
Bx = 18*cos(112) = -6.74
The answer is D
Seven
theta = - 40o It's going clockwise. You just put the angle in your calculator as -40o
By = 15*sin(-40) = -9.64
Bx = 15*con(-40) = 11.48
Answer: A
Eight.
I'm going to answer this one as it is written.
Fx = F * cos(37)
Fx = 20N * cos(37)
Fx = 15.87 N The answer is A.
Fy is not calculated for this because Fy pulls Rover up. He's not going to like that very much. You have to know this when you are walking your dog and you pull him up at an angle. Part of what you are doing is choking him for no good purpose. That's part of the physics of everyday living.
Answer:
4347.8 m/s
Explanation:
It is given that the radius of the circular path traversed by proton and electron is same. Also, we know that magnitude of charge on an electron and proton is same. Magnetic field strength is same for both.
Take the ratio:
Explanation:
using Ohm's law which is defined as V=IR
where V is the voltage, I is the current and R the resistance