Answer:
2.1406 × m/sec
Explanation:
we know that energy is always conserved
so from the law of energy conservation
here V is the potential difference
we know that mass of proton = 1.67× kg
we have given speed =50000m/sec
so potential difference
now mass of electron =9.11×
so for electron
so the velocity of electron will be 2.1406× m/sec
Answer:
v_avg = 37 km/h
Explanation:
To find the average velocity in the complete trajectory you use the following formula:
( 1 )
v1: velocity in the first part of the trajectory = 70 km/h
v2: velocity in the second part of the trajectory = ?
You calculate v2 by using the following equation for a motion with constant velocity:
you replace the values of v1 and v2 in (1) and you obtain:
hence, the average velocity is 37 km/h
Answer:
(a)
(b) (5.05 m, 16.93 degrees wrt x-axis)
Explanation:
Given:
Let us first fond out vector D and E in their rectangular form.
Similarly,
Part (a):
We can write the resultant vector R as below:
Part (b):
Since both the components of the resultant lie on the positive x and y axes. So, the resultant makes an acute angle with the positive x-axis.
So, R = (5.05 m, 16.93 degrees wrt x-axis)