Answer:
h = 80m L = 60m
Explanation:
Độ cao Ng ta ném hòn bi là
t= => 4^2 =
h= 80m
Tầm bay xa:
L= Vo . t = 15.4 = 60m
Chúc học tốt nghen
At 30 C, exactly 95 grams of this salt dissolved completely in 100 grams of water. According to the solubility chart, the salt i
2 answers:
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Answer:
The total resistance is 106 Ω and the current in the circuit is 0.11 A.
Explanation:
Given that,
Voltage of the battery, V = 12 V
Resistors 34 Ω, 42Ω, and 30Ω are connected in series.
The total resistance is given by :}
R = 34 + 42 +30
= 106Ω
Let I is the total current in the circuit. Using ohm's law to find it such that,
Hence, the total resistance is 106 Ω and the current in the circuit is 0.11 A.
Hi there!
Recall the equation for weight.
W = Weight (N)
M = Mass (kg)
g = acceleration due to gravity (m/s²)
The weight of an object depends upon its MASS and the strength of the GRAVITATIONAL field. We can solve for weight:
Answer:
a) v = 0
b) The aceleration is 1.41
c) The block is accelerating away from the wall.
Explanation:
First, you need to think about the effect this constant force is causing in the spring: it causes a displacement in the equilibrium point of the system, therefore we need to know where it sits now:
At equilibrium no movement is present reducing friction to 0:
This means that the spring can be compressed with the single force up to 68 cm, Any further compression will cause an unbalanced system and the occilation of the mass.
The spring can't be compressed by the given force to 80 cm, therefore it must have been compressed by another force and then released.
In this case, the instantanous speed is 0, since the block has just been released.
In the same instant we can stimate the free body diagram of forces by the next two equations:
For the y axis:
To calculate the force of friction:
Therefore for x axis: