PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (67pts)

Answer:

The base unit for time is the second (the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance). The second can be abbreviated as s or sec.

Explanation:

Answer:

A. Quarter or less of the entire moon

Explanation:

This is because as the Moon revolves around the Earth, the light of the sun that is falling on the moon gets blocked by the Earth when we see the crescent moon.

That's why we only see the quarter or less of the entire moon shining on crescent moon night.

Answer:

Canidate B

Explanation:

Becuase he/she is good to work with, and will most likely be more determined.

Answer: below

Explanation:

binge eating then purging. Often known as bulimia. It's an eating disorder. If you starve yourself you have anorexia. If its an idea you are paranoid. Or you are very depressed and you want to get rid of your emotions. It could be called starving yourself too. But you may be looking for the word Orthorexia

Answer:

ok so I'm going left to right

a) 3 2 1 4

b) i don't know

Answer:

Tangential speed, V = 2.78 m/s.

Explanation:

Given the following data;

Centripetal acceleration = 28m/s²

Radius = 27.5cm to meters = 27.5/100 = 0.275 meters

To find the tangential speed;

Centripetal acceleration = V²/r

Substituting into the formula, we have;

28 = V²/0.275

V² = 28 * 0.275

V² = 7.7

Taking the square root of both sides, we have;

Tangential speed, V = 2.78 m/s.

The tangential speed of the sock will be 7.7 m/sec².Tangential speed is  as the linear speed of any object travelling along a circular route.

Tangential speed is defined as the linear speed of any item travelling along a circular route.

A point on the outside edge of a turntable travels further in one complete rotation than a point towards the center.

The given data in he problem is;

a is the  centripetal acceleration =28m/s?

r is the  radius of 27.5cm

v is  the tangential speed of the sock=?

[tex]\rm a= \frac{v^2}{r} \\\\ \rm v= \sqrt{ar} \\\\ \rm v= \sqrt{28 \times 0.275 } \\\\ \rm v=7.7 \ m/sec^2[/tex]

Hence the tangential speed of the sock will be 7.7 m/sec².

To learn more about the tangential speed refer to the link;

https://brainly.com/question/17689540

Answer:

Ca + ZnCO3 → CaCO3 + Zn

Explanation:

Ca + ZnCO₃ = CaCO₃ + Zn

Ca + ZnCO3 → CaCO3 + Zn is the answer.

Here Ca and ZnCO₃ are reactant and CaCO₃ and Zn are product . Reactants are written on the left side of equation and product are written on the right side.

Answer:

The correct option is, Ca + ZnCO3 —> CaCO3 +Zn

Explanation:I got it right.

Lungs is what helps u breath

Answer:

i think the answer is :lungs

Answer:

Decreasing

Explanation:

Answer: 5 meters per second (5mps)

Explanation:

Simply take 50 and divide it by 10

[tex]\frac{50}{10} =5[/tex]

The old farm house had been wrapped in insulation and sided.

refrigerator may be considered to be a heat engine operated in reverse.

The warmed water may become a thermal pollution problem in terms of the receiving body of water.

Answer:

Workdone = 1476 Nm

Explanation:

Given the following data;

Force = 164 N

Mass = 55kg

Distance = 9 m

To find the work done;

Workdone = force * distance

Workdone = 164 * 9

Workdone = 1476 Nm

Therefore, the work done by the force on the television set is 1476 Nm.

Answer:

c

Explanation:

bouncing on a trampoline

Answer:

D: All of the Above

Explanation:

I checked C and was wrong so trust me it is D

Answer:

v_f = 10.85 m/s

Explanation:

We will apply the law of conservation of momentum here:

[tex]m_{1}v_{1i} + m_{2}v_{2i} = m_{1}v_{1f}+m_{2}v_{2f}\\[/tex]

where,

m₁ = mass of roller skater = 47 kg

m₂ = mass of bag = 6 kg

v_1i = initial speed of roller skater = 12 m/s

v_2i = initial speed of the bag = 0 m/s

v_1f = final speed of the roller skater = ?

v_2f = final speed of the bag = ?

Both the bag and the skater will have same speed at the end because kater is carrying the bag:

v_1f = v_2f = v_f

Therefore, the equation will become:

[tex](47\ kg)(12\ m/s)+(6\ kg)(0\ m/s)=(47\ kg)(v_{f})+(5\ kg)(v_{f})\\564\ N.s = (47\ kg+5\ kg)(v_{f})\\v_{f} = \frac{564\ N.s}{52\ kg}\\[/tex]

v_f = 10.85 m/s

Answer:

G.P.E = 5.292 Joules

Explanation:

Given the following data;

Mass = 0.6 kg

Height = 0.9 m

To find the gravitational potential energy;

Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.

Mathematically, potential energy is given by the formula;

[tex] G.P.E = mgh[/tex]

Where,

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

But we know that acceleration due to gravity is equal to 9.8m/s²

G.P.E = 0.6*9.8*0.9

G.P.E = 5.292 Joules

Answer:

Explanation:

You know, I never really thought about this very much. I've always just thought of it as M * V. But when you look at a dictionary definition, it says it is the motion of a body.

That means that speed can be a momentum. Speed is independent of direction. So the colloquial definition does not take into account a change in direction as being very relevant.

The answer then is direction. When physics uses v, it is also counting direction.

Well we can't see (B) in your picture, so we can't comment on it.

But ' D ' depicts a correct relationship between a position and a speed.

(And C doesn't.)

Answer:

We can't see B, but D would be correct while C would not be.

Explanation:

C shows an object not moving with the position graph and shows the object decelerating in the velocity graph.

D shows the object moving at a constant speed in a positive direction and the velocity graph shows a constant velocity.  

Explanation:

An object will have a negative charge when an atom has gained electrons . it is called an anion

Answer:

I'm pretty sure the answer is 0 m/s²

Explanation:

The horizontal velocity of the second rock is 5 m/s, so if we pretend air resistance doesn't exist, it will maintain that horizontal velocity, meaning that there is no horizontal acceleration.

Answer:

I would say the best choice, would be Choice C.

For all of these scenarios a force is being applied to displace an object. But the displacement occur in the case of trying to push a car and pushing a child on a swing. Thus, options b and c are correct.

Work done in physics is the dot product of force and displacement. Therefore, every work done is associated with a force but not all force result in work done. Those force, which result in a displacement will do work done.

Holding a heavy piece of wood does not make a displacement in the object. Similarly, when we hold the door to stop we just apply a force and not displacing the door. In both cases work done is zero.

When we push a car to make it move and any movement from the side of the car result in a work done. Similarly in when we push a child in a swing we make the swing move a distance by applying force. Thus work is being done on the object.

To find more on work done, refer here:

https://brainly.com/question/13662169

#SPJ5

Answer:

the heating method in here is conventional heating due to the warn air goes to the top bunk whereas the cold air sinks down

Answer:

true

Explanation:

hope u find this helpfull

Answer:

B and C!

Explanation:

I just did it on edge. I hope this helps!

Answer:

3) a skier racing down a hill

Explanation:

Remember kinetic energy is energy which a body possess by virtue of being in motion. So anything that is in motion will gain kinetic energy and lose potential energy. Answer 3 was the only object in motion. Kinetic energy is also named energy of motion.

Answer:

Yes

Explanation:

Antarctica is usually always cold.

Answer:

Explanation:

trye

answer..

if this is a true or false question it is true

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