The flame on a gas stove heats the bottom of a metal pot is conduction.
The sun gives you a sunburn is a radiation
Answer:
From left = 1.2L
From back = 0.9L
Explanation:
5 x = 3(L-X) + 2(2L-X)
X = 0.7L
Distance from left = 1.2L
7y = 2(L-X)+1(2L-x)
Y = 0.4L
Distance from back = 0.9L
Answer:
Put the two solid spheres on an inclined plane
. Use a meter-stick to hold the spheres on the plane. Release the two spheres at the same time and let down roll down. Observe the two spheres as they roll down and repeat the steps. The hollow sphere will roll last while the solid sphere will roll first. The hollow sphere has more rotational inertia than the solid sphere. This is because the mass of the hollow sphere is distributed farther from its center of gravity.
Explanation:
The description of the experiment for the two spheres is given below:
1. Put the two solid spheres on an inclined plane
.
2. Use a meter-stick to hold the spheres on the plane.
3. Release the two spheres at the same time and let down roll down.
4. Observe the two spheres as they roll down and repeat the steps.
5. The hollow sphere will roll last while the solid sphere will roll first. The hollow sphere has more rotational inertia than the solid sphere. This is because the mass of the hollow sphere is distributed farther from its center of gravity.
Answer:
Q1 = 7.25*10^(-16) C
Explanation:
We are given;
electric field strength = (1 x 10^5 N/C
drag force (F) = 7.25 x 10^(-11) N
The question says it's moving with constant velocity. This means that he particle is in equilibrium and not accelerating.
Columbs law force of attraction or repulsion between two charges is given as;
F=(KQ1Q2)/r²
Now, electric field strength is given as the formula;(K*Q2)/r², thus plugging the relevant values gives us;
7.25 x 10^(-11) N= (1 x 10^(5) N/C)Q1 Q1 = 7.25 x 10^(-11) /(1 x 10^(5))
Q1 = 7.25*10^(-16) C
The relationship between the voltage and the current in the circuit is:
where
is the voltage difference, R the resistance of the circuit (and therefore, the resistance of the battery) and I the current flowing in the circuit. By using I=19 A and
, we can find the internal resistance of the battery:
