Answer:
3.69 N
Explanation:
Draw a free body diagram. There are four forces acting on the object:
Weight force W pulling straight down.
Normal force N pushing perpendicular to the inclined plane.
Friction force f pushing down the inclined plane.
Applied force P pushing up the inclined plane.
Sum of forces in the perpendicular direction:
∑F = ma
N − W cos θ = 0
N = W cos θ
Friction force is normal force times the coefficient of friction:
f = Nμ
f = Wμ cos θ
Plug in values:
f = (15.0 N) (0.300) cos 35.0°
f = 3.69 N
Ok the answer to this is quite simple all you do is multiply the objective lens magnification times the eye piece magnification. So multiply 30 times 5. 30 x 5 = 150. So your answer is answer choice C. 150 Hope this helped you. :)
First, we calculate for the weight of the object by multiplying the given mass by the acceleration due to gravity which is equal to 9.8 m/s²
Weight = (14 kg)(9.8 m/s²)
Weight = 137.2 N
The component of the weight that is along the surface of the inclined plane is equal to this weight times the sine of the given angle.
Weight = (137.2 N)(sin 52°)
weight = 108.1 N
The object will continue moving in a straight line at constant speed.
Explanation:
It is given that,
Mass of singly charged uranium 238 is,
Potential difference,
Magnetic field, B = 1.98 T
(a) Let r is the radius of their circular path. It is given by :
q is the charge on electron
r = 0.05335 meters
(b) Mass of singly charged uranium 235 is,
q is the charge on electron
r = 0.053012 meters
(c) The radius of the acceleration voltage depends on the radius of path. Here, the voltage is same but for heavier ion the radius is more as compared to the lighter ion. The ratio is nor dependent on the accelerating voltage
(d) The ratio of these path radii do not depend on the magnitude of the magnetic field.
Hence, this is the required solution.