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3 years ago

PLEASE HELP ASAP I WILL GIVE BRAINLIEST!!!!!!!!

Physics

2 answers:

romanna [79]3 years ago

8 0

One fourth of the moon's lighted side is visible from Earth

when the Moon is at position-D in its orbit ... it looks like a

crescent in the sky.

There's a massive blunder in this drawing.

Look at the Moon at Third Quarter.

It's drawn with its dark side toward the sun, and its

lit-up side away from the sun ! That's just silly.

Teachers can make mistakes too.

Firlakuza [10]3 years ago

5 0

The answer would be D

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This question is typical on some driver’s license exams: A car moving at 45 km/h skids 15 m with locked brakes. How far will the

sergiy2304 [10]

from kinematics equation if we know that final speed is ZERO and initial speed is given that due to constant deceleration the object will stop in some distance "d" and this distance can be calculated by kinematics

$v_f^2 - v_i^2 = 2 a d$

$0 - v^2 = 2(a)d$

here acceleration due to friction will be same at all different speed

so for 45 km/h speed the distance of stop is 15 m

while at other speed 112.5 km/h the distance will be unknown

now we will have

$0 - 45^2 = 2(a)15$

$0 - 112.5^2 = 2(a)d$

now divide above two equations

$\frac{45^2}{112.5^2} = \frac{15}{d}$

$d = 93.75 m$

So it will stop in distance 93.75 m

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3 years ago

how do scientists know that black holes exist A. by running experiments on the sun B. by observing objects and light around blac

NNADVOKAT [17]

Answer:

E. none of the above

Explanation:

I hope thats right

8 0

3 years ago

Read 2 more answers

What is the change in electric potential energy in moving an electron from a location 3 × 10-10 m from a proton to a location 7

joja [24]

Answer:

4.39 x 10^-19 J

Explanation:

q1 = 1.6 x 10^-19 C

q2 = - 1.6 x 10^-19 C

r1 = 3 x 10^-10 m

r2 = 7 x 10^-10 m

The formula for the potential energy is given by

U1 = k q1 q2 / r1 = - (9 x 10^9 x 1.6 x 10^-19 x 1.6 x 10^-19) / (3 x 10^-10)

U1 = - 7.68 x 10^-19 J

U2 = k q1 q2 / r2 = - (9 x 10^9 x 1.6 x 10^-19 x 1.6 x 10^-19) / (7 x 10^-10)

U2 = - 3.29 x 10^-19 J

Change in potential energy is

U2 - U1 = - 3.29 x 10^-19 + 7.68 x 10^-19 = 4.39 x 10^-19 J

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4 years ago

Why sheets of newspaper can be used to keep ice cream cold and keep fish and chips hot?

stich3 [128]

Answer: Paper

Explanation: It is a insulator

7 0

4 years ago

Advances in genetic engineering show that it is possible to:_____________. 1. enhance learning and memory ability in nonhuman or

san4es73 [151]

Answer:

1. enhance learning and memory ability in nonhuman organisms.

Explanation:

Genetic engineering can be defined as the process by which scientists modify the genome of an organism using new molecular tools. The resulting organism after the modification is known as Genetically Modified Organisms (GMO).

To create this genetically modified organisms requires recombinant DNA.

Advances in genetic engineering show that it is possible to enhance learning and memory ability in nonhuman organisms through biotechnology.

3 0

4 years ago