For an exponential function, y = A∙emx, what is the value of y when x = 0?

a.
A

b.
e

c.
x

d.
b

e.
zero

Answer:

A

Explanation:

D measusers the speed

C measures GPE

B tests Hookes Law

A is rhe only one that isnt related to physics and has chemistry involved

Answer:

Invasive plants also degrade the environment by changing the species composition and the ecology of invaded ecosystems

Explanation:

Answer:

they can harm the enviroment by changing the species composition and the ecology of invaded ecosystems !!

Answer:

If the charges of both the paper and glass attract we can deduce that both charges with opposite signs. If they were repelling each other then their charges would have the same sign.

so in this case:

ONE HAS A POSITIVE CHARGE WHILE THE OTHER HAS A NEGATIVE CHARGE

Answer:

You do a study of hypnotherapy to determine how effective it is in increasing the number of hourse of sleep subjects get each night. You measure hours of sleep for 12 subjects with the following results. Construct a 95% confidence interval for the mean number of hours slept for the population (assumed normal) from which you took the data.

Answer:

FD (Force Diagram)

Explanation:

Answer:

Ratchet- To rotate the screw by turning it so that the object is gently held between the shud and spindle of the screw.

Sleeve- To mark main scale and base line.

Thimble- To mark circular scale.

Main scale- To read length correct up to 1mm.

Circular scale- Helps to read length correct up to 0.01mm.

Answer:

Convection is the transfer of heat from one place to another along with the motion of the object's particles. Water is a poor conductor. However, when the bottom water is heated, it turns out that the top water is also hot. This means that there is another way of transferring heat to the water, namely convection.

Explanation:

A convectional current is a process that involves the movement of energy from one place to another.

Answer:

the frequency and the radiation of radiation decreases.

Explanation:

Answer: Its (B)

Explanation

Answer:

Option B

Explanation:

See angular velocity is decreasing with respect to time , angular acceleration is negative .

The slope of the graph should be angular acceleration as slope is change in y with respect to x .

Here initial velocity made twice

so y intercept or vertical intercept should go twice up wards.

The horizontal intercept will also go twice rightwards because slope or angular acceleration is constant given .

If scale is one box=1units

Remember that displacement will be doubled also

Answer:

39.2 m/s

Explanation:

Find the time for the first one to hit the ground

h = vo t - 4.9 t^2     with h = o

0 = 49 t - 4.9 t^2       t = 10

second stone hits ground in 10 - 2 - 8 seconds

0 = vo (8) - 4.9(8)^2

vo = 39.2 m/s

When a stone is thrown vertically upwards at a velocity of 49m/s, and after 2s another stone is thrown vertically upwards,  If the two stones strike the ground at the same time the velocity with which the second stone will be 39.2 m/s.

velocity is rate of change of displacement with respect to time. it is measured in m/s.

When a stone is thrown vertically upwards acceleration due to gravity acts opposite to the velocity. At the maximum height, final velocity becomes equal to zero. hence according to kinematic equation.

v₂² = v₁² - 2as = 0

v₁² = 2as

49² = 2×9.8×s

s = 49²  ÷ 2×9.8

s = 122.5 m

This is maximum height attained by the a stone.

Time required for the first stone to attain max height,

s = ut -1/2at²

122.5 = 49t - 1/2*9.8t²

9.8t²-98t+245= 0 this is quadratic equation in t, solving it we get,

t= 5s

Total time of the flight of the first stone is 10s

According to the problem, Both the stones falls at same time, hence Total time of flight of second stone will be 10-2 = 8s

According to to projectile motion time of the flight is given by,

t = 2vsinθ ÷ g

here θ = 90°

t = 2v/g

8 = 2v/9.8

v = 8×9.8/2

v = 39.2 m/s

The velocity of the second stone with which it was thrown is 39.2 m/s.

To know more about displacement ;

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#SPJ2.

as the skateboard moves halfway down the hill, kinetic energy will increase, and potential will decrease, but the total will stay 500 J

potential energy will go from 500 to (500÷ 2) = 250 J

kinetic will go from 0 to 250J halfway

wyzant

Answer:

A. An attractive, weak force

Explanation:

I got it right

An attractive, weak force best explains the interaction between the two charges. The force between two charges is known as the Columb's force.

When the matter is put in an electromagnetic field, it has an electric charge, which causes it to experience a force. A positive or negative electric charge can exist.

Charges that are similar repel each other, whereas charges that are dissimilar attract each other. The term "neutral" refers to an item that has no net charge.

A large positive charge is placed very far away from a small negative charge. Due to the far distance, the force will be a weak force.

While due to the opposite polarity the charge is attractive in nature.

Hence an attractive, weak force best explains the interaction between the two charges

To learn more about the charge refer to the link;

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Explanation:

Answer:

3m/s

Explanation:

Speed is distance/time,

36m/12s = 3m/s

Answer:

directly

Explanation:

Answer: Directly

Explanation:

Answer:

frictional force

Answer:

See Below

Explanation:

1) When we add another lamp into a series circuit, the total resistance increases, this means that the total current is the same. Also, the potential difference across each of the lamps decreases. This means that the lamps all become dimmer.

2)When we add another lamp into a parallel circuit in a new branch, the total resistance decreases, the current through each lamp decreases. Also, the potential difference across each of the lamps is the same. This means that the lamps have the same brightness.

Answer:

525 j

Explanation:

Work = force * distance

               350 N * 1.5 m =

1 × 3 = 3

36 ÷ 2 = 18

18 + 3 = 21

14 × 3 = 42 you can also do 7 × 6 and will get the same result because 7 is half of 14 and 3 is half of 6

21 + 42 = 63

63 ÷ 6 = 10.5 [tex]-- >[/tex] 10 remainder of 3 remainder means left over

Answer:

40N

Explanation:

the forces act in the same direction so we add the forces

Answer:

if its adding its 9 if its multiplying its 18 if its division its 2

Explanation:

after rereading: Yes, there is a term for water on the moon and it's called lunar water, pretty straightforward. you can check out moon.nasa.gov, or literally look this up in the magical (g-engine) and it'll gove you a few articles.

______________________

oh my, sorry, i thought the question asked if the moon moved water, in which case: I wouldn't say that the moon actually MOVES the water, but yes, its gravitational force is strong enough to affect tides on Earth. (i could've sworn that's what I saw but whatever, sorry!)

Most of the night sky would be dark with only a few stars if the solar system were moved on the edge of galaxy.

If the Sun and Earth were moved on the edge of an elliptical galaxy, we can see most of dark and few stars in the sky at night because stars are present at large number at the center of galaxy and fewer at th edges.

So we can conclude that most of the night sky would be dark with only a few stars if the solar system were moved on the edge of galaxy.

Learn more about galaxy here: https://brainly.com/question/13956361

The error in the measurement of sin 90 degrees at the given error in angle is  0.001.

The error in measurement is obtained from the difference between the actual measurement and the observed measurement.

The error of sin 90 degrees is calculated as follows;

Actual measurement = sin 90 = 1

Observed measurement = sin(90 - 0.5)

Observed measurement = sin(89.5) = 0.999

Error in measurement = Actual measurement - Observed measurement Error in measurement = 1 - 0.999

Error in measurement  = 0.001

Thus, the error in the measurement of sin 90 degrees at the given error in angle is  0.001.

Learn more about error in measurement here: https://brainly.com/question/26668346

Answer:

the measured charge will be -2 elementary charges.

Explanation:

Magnetism is the property of a material produced, by the motion of electric charge resulting in attraction and repulsion between objects.

We can make the claim that light can be reflected, which is justified by the reflection seen on the water as well as the colors seen in the photo.

We can claim that light can and is being reflected in this image due to the reflection in the water as well as the colors. As the light traveling in the air collides with the water, it abruptly changes speed, causing a portion of these waves to be reflected back, thus creating a mirror image on the surface of the water. This is also the case with colors, which are caused by a material reflecting all but one wavelength of light.

Therefore, we can confirm that it is possible to make the claim that light can be reflected, which is justified by the reflection seen on the water as well as the colors seen in the photo.

To learn more about how light behaves visit:

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Answer:

"Health psychology is a specialty area that focuses on how biology, psychology, behavior, and social factors influence health and illness."

-Verywell Mind

Hope I helped!

Explanation:

Answer:

Surface tension, capillary action, and viscosity are unique properties of liquids that depend on the nature of intermolecular interactions. Surface tension is the energy required to increase the surface area of a liquid by a given amount. The stronger the intermolecular interactions, the greater the surface tension