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3 years ago

15

Jane described two substances which participate in photosynthesis. Substance A: Combines with water Substance B: Gaseous product

formed Which statement is correct?

2 answers:

Nadya [2.5K]3 years ago

6 0

C is the correct answer choice

saul85 [17]3 years ago

5 0

<span>I am pretty sure the correct answer is C.
It makes the most sense.
Please correct me if I'm wrong.</span>

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The law of conservation of energy stated that ?

givi [52]

Answer:

The total energy of an isolated remains constant. It is said to be conserved over time.

5 0

3 years ago

You are carrying a 7.0-kg bag of groceries as you walk at constant velocity along the sidewalk. You walk a distance of 82 meters

MAVERICK [17]

Answer:

0J

Option: B

Explanation:

Work is done when something is moved by the force in the direction of the force. That is the force (e.g., the weight) and the direction the object moves must be aligned for work to be done. In this given condition, the direction is horizontal and the force is downward as its gravity force. That 90° between the two vectors.

The work function is W = m × g ×h × cosθ

$\text { Where, in this case theta }=90^{\circ}$

Hence,

Work done = 7 × 9.8 × 1.5 × cos(90)

Work done = 0 (cos $90^{\circ}$ = 0)

Work done = 0

Therefore work done is 0 J.

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4 years ago

A computer monitor accelerates electrons and directs them to the screen in order to create an image. If the accelerating plates

tensa zangetsu [6.8K]

Answer:

Electric field at a distance of 1.45 cm will be $172.41\times 10^4N/C$

Explanation:

We have given the distance d = 1.45 cm = 0.0145 m

And the potential difference $V=2.5\times 10^4volt$

There is a relation between potential difference and electric field

Electric field at a distance d due to a potential difference is given by

$E=\frac{V}{d}$ , here E is electric field, V is potential difference and d is distance

So $E=\frac{V}{d}=\frac{2.5\times 10^4}{0.0145}=172.41\times 10^4N/C$

8 0

4 years ago

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 55.0 cm. She finds the pendulum m

forsale [732]

Answer:

Acceleration due to gravity will be $g=5.718m/sec^2$

Explanation:

We have given length of pendulum l = 55 cm = 0.55 m

It is given that pendulum completed 100 swings in 145 sec

So time taken by pendulum for 1 swing $=\frac{145}{100}=1.45sec$

We have to find the acceleration due to gravity at that point

We know that time period of pendulum;um is given by

$T=2\pi \sqrt{\frac{l}{g}}$

So $1.45=2\times 3.14\times \sqrt{\frac{0.55}{g}}$

$\sqrt{\frac{0.55}{g}}=0.230$

Squaring both side

${\frac{0.3025}{g}}=0.0529$

$g=5.718m/sec^2$

So acceleration due to gravity will be $g=5.718m/sec^2$

3 0

4 years ago

Experiments need to be repeated by the scientist and also replicated by other scientists.

BlackZzzverrR [31]

Answer:

true

Explanation:

6 0

3 years ago

Read 2 more answers