Answer:
A) True. Voltmeters measure voltages
C) True. They are placed in parallel
E) True ammeters are used to measure current
Explanation:
The devices for voltage measurement are the voltmeter and ammeter
Voltmeters have very high intense resistance and are placed in parallel
The ammeters have very small resist and are placed in series
Based on this establishment, let's analyze the statements
A) True. Voltmeters measure voltages
B) False has high intense resistance
C) True. They are placed in parallel
D) False ammeters are placed in series
E) True ammeters are used to measure current
F) False ammeters have a low internal resistance
Answer:
Explanation:
There is electric field between the plates whose value is given by the following expression
electric field E = V /d where V is potential between the plates and d is distance between them
E = 300 / 5 x 10⁻³
= 60 x 10³ N/c
Force on electron = q E where q is charge on the electron
F = 1.6 X 10⁻¹⁹ X 60 X 10³ = 96 X 10⁻¹⁶ N.
Acceleration a = force / mass
a = 96 x 10⁻¹⁶/ mass = 96 x 10⁻¹⁶ / 9.1 x 10⁻³¹
= 10.55 x 10¹⁵ m / s²
For midway , distance travelled
s = 2.5 x 10⁻³ m
s = 1\2 a t²
t =
=
t = .474 x 10⁻¹⁸ s
For striking the plate time is calculated as follows
t = [/tex]
t = 0.67 x 10⁻¹⁸ s
Answer:
16 2/3 hr
Explanation:
250 000 km / 15 000 km/hr = 16 2/3 hours
Answer:
a = 2.44 m/s²
Explanation:
The Net force acting on the car downwards the plane will be equal to the component of the weight that is parallel to the plane.
Thus;
mg(sin θ) = ma
Thus;. g(sin θ) = a
g is acceleration due to gravity = 9.81 m/s²
θ = 14.4°
Thus;
9.81 × sin 14.4 = a
a = 2.44 m/s²
Explanation:
hello,
a = ( v - u ) / t
where u is the initial velocity.
and v is the final velocity.
t represents time,
and a represents acceleration.
in this case,
a = 1.4 m/s²
u = 6 m/s
v = 13 m/s
hence,
1.4 = (13 - 6)/t
1.4t = 7
t = 7/1.4
t = 5 s
thank you!