100k points pls solve asap or no points

Answer:

a glass of water. a loaf of bread. a bar of soap.a packet of juice. a pinch of salt.

Explanation:

that's all I know

Hi there!

Use the following equation: (Newton's Second Law)

∑F = ma, where:

∑F = net force (J)

m = mass (kg)

a = acceleration (m/s²)

Plug in the given values:

∑F = 1500 · 40 = 60,000 J

Answer:

A negative of a vector represents the direction opposite to the reference direction

Explanation:

It means that the magnitude of two vectors or same but they are opposite in direction . For example if A and B are two vectors that have equal magnitude but opposite in direction , then vector A is negative of vector B.

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Isolation and reduction of variables in an experiment is a way to reduce administrative efforts, costs and delusions occur.

An experiment is a technique used to prove or disprove a theory, or to test the efficacy or probability of something that has never been done before.

Experiments reveal cause-and-effect relationships by illustrating what happens when a specific component is changed.

Experiments have a wide range of goals and scales, but they always rely on a repeatable technique and rational interpretation of the outcomes. Natural experimental research is also available.

If you can plan a control group, you will be much better off. It increases the expense of the experiment by a factor of two and may cause delusions.

Furthermore, it doubles the administrative effort. However, it provides the most reliable and straightforward method for calculating significance,

By comparison, taking into consideration the deviations of each of the two groups of data that arise.

In many circumstances, a control group is required for analysis when you wish to look at certain lag periods or increases in addition to the final result.

Hence isolation and reduction of variables in an experiment are much more important to reduce.

To learn more about the experiment refer to the link;

https://brainly.com/question/11256472

Answer:

It will take 0.46 seconds to reach home plate by ball.

Explanation:

Total weight in tons

[tex]\\ \sf\longmapsto 2.3\times 10^6\times 2.4[/tex]

[tex]\\ \sf\longmapsto 5.52\times 10^6[/tex]

[tex]\\ \sf\longmapsto 5520000ton[/tex]

[tex]\\ \sf\longmapsto 5520000\times 1000[/tex]

[tex]\\ \sf\longmapsto 5520000000kg[/tex]

[tex]\\ \sf\longmapsto 5.52\times 10^9Kg[/tex]

Answer:

30 km/h

Explanation:

V=S:t

speed=length:time

150:5=30

Answer:

Vi=15.6m/s

Explanation:

a=(Vf-Vi)/t

when we find Vi from the above formula

Vi = Vf - at

Vi=30m/s - 12sec×1.2m/s^2

Vi = 15.6m/s

Answer:

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Answer:

The geocentric model could not fully explain these changes in the appearance of the inferior planets (the planets between the Earth and the Sun). Furthermore, Galileo's observations of Jupiter's moons made it clear that celestial bodies do move about centers other than the Earth.

Mark me as the brainlist

c) melting of ice candy is an physical change

hope it helps

Answer:

If a ray of light hits the surface of a sheet of glass, some light will be reflected by the surface of the glass. However, much of the light will pass through the glass, because glass is transparent. ... This 'bending of a ray of light' when it passes from one substance into another substance is called refraction.

Explanation:

Answer:

ifyou have a wre connect you should not have to connected

i think that is the answer

Answer:

B

Explanation:

B

Answer:

Well, there is a kind of magnet to pick up a coin.. I think you can pick up a needle with one too.. I think safety pins. depending on what its made of though.

Explanation:

Answer:

cork cannot be picked with a magnet

Explanation:

i hope that helps

The magnitudes of his q and ∆H for the copper trial would be lower than the aluminum trial.

The given parameters;

The quantity of heat transferred by each metal is calculated as follows;

Q = mcΔt

For copper metal, the quantity of heat transferred is calculated as;

[tex]Q_p = (m_wc_w + m_pc_p)(T_m - T_i)\\\\Q_p = (T_m - T_i)(m_wc_w ) + (T_m - T_i)(m_pc_p)\\\\Q_p = (T_m - T_i)(m_wc_w ) + 0.385m_p(T_m - T_i)\\\\m_p = m\\\\Q_p = (T_m - T_i)(m_wc_w ) + 0.385m(T_m - T_i)\\\\let \ (T_m - T_i)(m_wc_w ) = Q_i, \ \ \ and \ let \ (T_m- T_i) = \Delta t\\\\Q_p = Q_i + 0.385m\Delta t[/tex]

The change in heat energy for copper metal;

[tex]\Delta H = Q_p - Q_i\\\\\Delta H = (Q_i + 0.385m \Delta t) - Q_i\\\\\Delta H = 0.385 m \Delta t[/tex]

For aluminum metal, the quantity of heat transferred is calculated as;

[tex]Q_A = (m_wc_w + m_Ac_A)(T_m - T_i)\\\\Q_A = (T_m -T_i)(m_wc_w) + (T_m -T_i) (m_Ac_A)\\\\let \ (T_m -T_i)(m_wc_w) = Q_i, \ and \ let (T_m - T_i) = \Delta t\\\\Q_A = Q_i \ + \ m_Ac_A\Delta t\\\\m_A = m\\\\Q_A = Q_i \ + \ 0.9m\Delta t[/tex]

The change in heat energy for aluminum metal ;

[tex]\Delta H = Q_A - Q_i\\\\\Delta H = (Q_i + 0.9m\Delta t) - Q_i\\\\\Delta H = 0.9m\Delta t[/tex]

Thus, we can conclude that the magnitudes of his q and ∆H for the copper trial would be lower than the aluminum trial.

Learn more here:https://brainly.com/question/15345295

Explanation:

We are going to use the following equation:

[tex]v = v_0 + at \Rightarrow t = \dfrac{v - v_0}{a}[/tex]

[tex]t = \dfrac{15\:\text{m/s} - 10\:\text{m/s}}{3\:\text{m/s}^2}[/tex]

[tex]\:\:\:\:=1.67\:\text{s}[/tex]

the scientific method is described as self-correcting and cyclical therefore it ain't linear but cyclic.

Hope this helped you- have a good day bro cya)

Answer:

The tension must be equal to the weight of the bob plus the centripetal force that is provided at eth end of the motion.

h = L (1 - cos theta)  where h is the height to which the bob is raised

cos 5.730 = .995

h = .005 L

Also    1/2 m v^2 = m g h    speed of the bob at the bottom

v^2 = 2 g h = .01 g L    where 2 h = .01 L

v^2 / L = .01 g

m v^2 / L = .010 g m = .07 g    since m = 7

Total tension = m g (1 + .07) = 1.07 m g

T = 9.807 * 1.07 * 7 = 73.45 kg m / s^2

Answer:

C )A hockey puck slides easily across the ice.

Answer:

sink hole, water table decrease ,and salt water intrusion

Answer:

pls give brainliest

Explanation:

sink hole,water table descrese and salt water intrusion

Explanation:

2. v=fλ

_______________________

Answer:

-5553N

Explanation:

Fnet = ma

Fnet = 1234kg * -4.5m/s^2

Fnet = -5553N

Answer:

B.  Measuring how much energy light loses while it travels.

Explanation:

Got it right on edge.

Answer:

B

Explanation:

measuring how much energy light loses while it travels

Answer:

YEAH THE PERSON ABOVE ME IS RIGHT MARK

THEM BRAINLIST

Answer:

U calculate from CREST to REST POSITION

In the above pic question is similar like that only

Answer:

The gravitational force between the two objects is weak because their masses are small

Answer:

[tex]\boxed {\boxed {\sf 10 \ m/s \ left}}[/tex]

Explanation:

Velocity is the speed of something in a given direction. It is a vector quantity, so it has both magnitude and direction. Velocity is calculated by dividing the displacement by the time.

[tex]v= \frac{d}{t}[/tex]

The car drives 50 meters to the left in 5 seconds.

Substitute the values into the formula.

[tex]v= \frac{50 \ m \ left}{5 \ s}[/tex]

Divide.

[tex]v= 10 \ m/s \ left[/tex]

The average velocity of the car is 10 meters per second to the left.