Gravitational potential energy is energy an object possesses because of its position in a gravitational field. The equation for gravitational potential energy is GPE = mgh.
GPE = 1200(1.6)(350) = 672000 J
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Answer;
- Transverse wave
- Longitudinal wave
- Electromagnetic wave
The standard wave format for any wave is transverse wave. When depicting longitudinal wave in standard wave format, the direction of motion must be rotated by 90 degrees. Only one of two waves is shown at a time when placing electromagnetic wave in standard wave format.
Explanation;
Transverse wave is a wave in which the vibration of particles is perpendicular with the direction of the wave motion. Longitudinal wave on the other hand are waves in which the vibration of particles is parallel to the direction of the wave motion.
Electromagnetic waves are wave which do not require a material medium for transmission, they include, radio waves, microwaves, UV light, etc. Most electromagnetic waves are transverse in nature.
Answer:
the coefficient of Kinetic friction between the tires and road is 0.38
Option A) .38 is the correct answer
Explanation:
Given that;
final velocity v = 0
initial velocity u = 15m/s
time taken t = 4 s
acceleration a = ?
from the equation of motion
v = u + at
we substitute
0 = 15 + a × 4
acceleration a = -15/4 = - 3.75 m/s²
the negative sign tells us that its a deacceleration so the sign can be ignored.
Deacceleration due to friction a = μ × g
we substitute
3.75 = μ × 9.8
μ = 3.75 / 9.8 = 0.3826 ≈ 0.38
Therefore the coefficient of Kinetic friction between the tires and road is 0.38
Option A) .38 is the correct answer
Answer:
250N
Explanation:
weight = Mass(in kg) × Gravitational field strength
25 × 10 = 250N
