Answer:
b. 0.20 m/s.
Explanation:
Given;
initial mass, m = 0.2 kg
maximum speed, v = 0.3 m/s
The total energy of the spring at the given maximum speed is calculated as;
K.E = ¹/₂mv²
K.E = 0.5 x 0.2 x 0.3²
K.E = 0.009 J
If the mass is changed to 0.4 kg
¹/₂mv² = K.E
mv² = 2K.E
Therefore, the maximum speed is 0.20 m/s
OMGG I LOVE LOVE LOVE the midnight summer's dream
Either A or D
Bottom's the donkey right?
I'm sure that it's D or A since I know C , Pease is a ... fairy?
Need to refresh my memory!
Answer:
F = 29.64 × 10-¹¹N
Explanation:
From newton's law of gravitation which states that every object in the universe will attract each other with a force which is directly proportional to the product of their masses and inversely proportional to the square of their distance apart.
That is, F = (Gm1m2)/ r²
From the question m1=4kg, m2 = 2.5kg, r= 1.5m,G = 6.67×10-¹¹
F=( 6.67×10-¹¹ × 4 × 2.5) / 1.5²
F = (66.7×10-¹¹) / 2.25
F = 66.7/2.25 × 10-¹¹ N
F = 29.64 × 10-¹¹N
F = 29.64 × 10-¹¹N
I hope this was helpful, please mark as brainliest
Current passes on an inductor when a voltage has been applied, reguarded as an open circuit.
30/(10+20)
=1 amperes