Answer:
decreases at a constant rate
Explanation:
At A, the vertical velocity component is positive. At B, it is 0. At C, it is negative.
So the vertical velocity component is decreasing, specifically at the rate of the acceleration due to gravity.
Answer:
D
Explanation:
Whatever question mark is, it will have to have a 1 taken away from the atomic number of Br.
The atomic mass of the electron doesn't change anything, so whatever ? is, it has a mass of 85.
Since ? is 85 / 34 Se, the answer much be D
Answer:
Force will be
Explanation:
We have given side of wire d = 2.3 cm = 0.023 m
Magnetic field B = 1.5 T
Velocity v = 2.1 m/sec
Resistance R = 3 ohm
We know that current is given by
Power is given by
We know that power is also given by
So
Answer:
A. It uses less energy to make something from recycled materials than from new materials.
Explanation:
I think it is this one because it is the only one that is not harmful to the environment. Also, I took the test a few minutes ago.
Answer & Explanation:
volume of the block = 4.5 x 5 x 6 = 135 cm^3 also equal to 1.35 x 10^-4 m^3
USE THE FORMULA
<em>Density = mass / volume</em>
<em><u /></em>
<em><u>Answer in gcm^-3</u></em>
<em>Density = 1502 / 135</em>
<u>Density = 11.1 gcm^-3</u>
<em><u /></em>
<em><u>Answer in kgm^-3</u></em>
<em>Density = 1.502 / 1.35 x 10^-4</em>
<u>Density = 11125.9 kgm^-3</u>