A reactant since it is on the left of the arrow
Answer:
Explanation:
The Sun won't explode. ... Eventually (in five or seven billion years time), the Sun's life will come to an end. Our star will swell up, becoming something called a “Red Giant” star. It might even get so big that it swallows the Earth whole.
The answer to the given statement above would be TRUE. Yes it is true that unlike the news media which may be biased, <span>science reporting can be depended on to be objective and not influenced by government policy and the interests of big corporations. Hope this answers your question.</span>
Explanation:
The total energy of the system remains conserved. It just converts from one form of energy to another.
The battery of the cell phone contains chemicals. As the electricity is passed through the cell phone, the electrical energy is converted to chemical energy. As she notices that the phone is warm and after the battery has been fully charged and the student unplugs her cell phone, the phone vibrates when a message arrives, this shows the conversion of chemical energy to mechanical energy, thermal energy etc.
Hence, we can say that the correct option is (b).
Answer:
Explanation:
Horizontal velocity V_x = 4.5 x 10⁵ m /s
vertical electric field E_y = 9.6 x 10³ N/C
acceleration in vertical direction a_y = force on proton / mass
= 9.6 x 10³ x 1.6 x 10⁻¹⁹ / 1.67 x 10⁻²⁷
= 9.2 x 10¹¹ m /s²
a ) In horizontal direction it will move with uniform velocity
time required = distance / velocity
= 5 x 10⁻² / 4.5 x 10⁵
= 1.11 x 10⁻⁷ s
b )
vertical displacement in time 1.11 x 10⁻⁷ s
h = 1/2 x at² , initial vertical velocity is zero.
= .5 x 9.2 x 10¹¹ x ( 1.11 x 10⁻⁷ )²
= 5.66 x 10⁻³ m
5.66 mm
c )
Horizontal velocity will be unchanged ie 4.5 x 10⁵ m /s
vertical velocity will change due to acceleration
= u + at
0 + 9.2 x 10¹¹ x1.11 x 10⁻⁷
= 10.21 x 10⁴ m / s
= 1.021 x 10⁵ m /s
