Answer:
B. Objects do not have to touch each other to experience a force.
Explanation:
For example ..One of the noncontact forces is magnetic force whereby a magnetic object will be attracted to another magnetic object of oppsite charged particles, through waves called electromagnetic waves. On the other hand, the two magnetic objects of similar charged particles can repel through electromagnetic waves..
Answer:
y = 6
Explanation:
Given parameters:
Given equation:
y = 2x + 10
And supposing; x = -2
Unknown:
y = ?
Solution:
We are going to solve this problem by substitution;
y = 2x + 10
since x = -2; input this into the equation to solve for y;
y = 2(-2) + 10 = -4 + 10 = 6
The value of y = 6
Answer:
692.4m/s
Explanation:
According to Newton's second law;
F = ma
F = m(v-u)/t
m is the mass
v is the final velocity
u is the initial velocity
t is the time
F is the forcr
Given
F = 450N
m = 2800kg
u =690m/s
t =15s
v = ?
Substitute into the formula
450 = 2800(v-690)/15
450×15 = 2800(v-690)
6750 = 2800(v-690)
6750/2800 =v-690
2.4 = v-690
v = 690+2.4
v = 692.4m/s
Hence the final velocity is 692.4m/s
Thunderstorms
are violent convective storms accompanied by thunder and lightning.
<span>Thunderstorms
are convective storms because it is an effect when there is an intense heating in
the Earth’s atmosphere that causes parcels of moist air that rises to the
surface of the Earth all throughout the atmosphere. A convective storm also
causes tornadoes.</span>
