Help what is the answer pls

Answer:

B) 2.45 m/s^2 ( not sure i just search it )

Answer: a!! Bc 10x2=20!

Explanation:

Answer:

20N

Explanation:

F=m*a

F=10*2

F=20N

.....

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water level will decrease because there are more evaporation and transpiration

Answer:

adaptive optics.

Explanation:

Light wave can be defined as an electromagnetic wave that do not require a medium of propagation for it to travel through a vacuum of space where no particles exist.

A lens can be defined as a transparent optical instrument that refracts rays of light to produce a real image.

A telescope can be defined as an optical instrument or device which comprises of a curved mirror and lenses used for viewing distant objects i.e objects that are very far away such as stars and other planetary bodies.

The technique called adaptive optics uses a high-speed computer to monitor atmospheric distortion and adjust the optics of a telescope to partially compensate for the seeing.

Basically, adaptive optics is used by astronomers to correct the distortions caused by the turbulence of the atmospheric conditions of the Earth in real-time, so as to have an image that is as sharp as anyone taken in space.

Answer:

it would be electromagnetic waves

Answer:

5

Explanation:

Move 12 spots to the right from -7 on the number line.

Answer:

1875J

Explanation:

KE = 1/2mv2

=0.5 × 150kg × 5m/s^2

= 1875J

Therefore, the kinetic energy of the boulder is 1875J.

Answer:

6.4 m/s

Explanation:

19.2/3=6.4

Answer:

A. 2.5 mm

B. 0.25 cm

Explanation:

A. Determination of the thickness of the wire.

Number of turns (n) = 10 turns

Length (L) = 25 mm

Thickness (T) =?

T = L / n

T = 25 / 10

T = 2.5 mm

Thus, the thickness of the wire is 2.5 mm

B. Determination of the thinkness in centimetres (cm).

Thickness (in mm) = 2.5 mm

Thickness (in cm) =?

Recall:

10 mm = 1 cm

Therefore,

2.5 mm = 2.5 mm × 1 cm / 10 mm

2.5 mm = 0.25 m

Therefore, the thickness of the wire in centimetre (cm) is 0.25 cm

Explanation:

F = k |q1| |q2| / r^2

k = 9 * 10^9

q1 = - 2.5 C

q2 = 2 C

r = 100

r^2 = (10^2)^2 = 10^4

F = (9*10^9) * ( 2.5 ) ( 2) / ( 100)^2

F = 45* 10^9 / 10^4

F = 45 * 10^9 * 10 ^ -4 = 45 * 10^5 N

F = 45 * 10 ^ 5 N

Answer:

D

Explanation:

speed = frequency x wavelength

speed of light in vacuum is 3.0 x 10^8

wavelength = 5.32 x10 ^-7

3.0 x 10 ^ 8 = 5.32 x 10^-7 x frequency

frequency = 5.63909 x 10^14

round it off = 5.64 x 10^14 Hz

thus the answer is D

hope this helps please mark it

Answer:

Force = 304.5 Newton

Explanation:

Given the following data;

Initial velocity, u = 0m/s (since it started from rest).

Final velocity, v = 42m/s

Time, t = 0.02 secs

Mass = 0.145 kg

To find the force;

First of all, we would have to determine the acceleration of the ball;

Acceleration = (v - u)/t

Acceleration = (42 - 0)/0.02

Acceleration = 42/0.02

Acceleration = 2100 m/s²

Now, we solve for the force;

Force = mass * acceleration

Force = 0.145 * 2100

Force = 304.5 Newton

Answer:

0.2 m/s

Explanation:

Momentum= mass x velocity

6 kg/m/s divided by 30 m/s= 0.2 m/s

Answer:

uhm

Explanation:

the water cycle describes the continuous moving of water on earth with steps called evaporation condensation precipitation the other one

Answer:

The water cycle consists of Evaporation, Convection, Precipitation and Collection :3

Explanation:

:3

Answer:

A.  Can the wave transfer matter?

Explanation:

Answer:

L = 6 m n = 3 f = 45/10 = 4.5 Hz → T = 1/f = 0.22 s

wavelength = 2L/n = 2×6÷3= 4 m

speed(v) = wavelength × f = 4×4.5 = 18 m/s

Explanation:

second solution for frequency:

f= speed(v) / wavelength = nv/2L = 3×18÷(2×6) = 4.5 Hz

Answer:

V = 20 m/s

Explanation:

Given the following data;

Mass = 80kg

Kinetic energy = 16,000 joules

To find the velocity;

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

[tex] K.E = \frac{1}{2}MV^{2}[/tex]

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents velocity measured in metres per seconds square.

Substituting into the formula, we have;

16000 = ½*80*V²

16000 = 40V²

V² = 16000/40

V² = 400

Taking the square root of both sides, we have;

V = 20 m/s

Answer:

A warm current

Explanation:

Answer:

A warm current is moving away from the equator towards the poles. The water in a warm current is warmer than the surrounding water.

Answer:

10meter per second square

Explanation:

since the bike is from rest, the initial velocity is zero and the final velocity is 20m/s . so by formula a=v-u/t

a = 20-0/10

a = 2

Answer:

Explanation:

Answer:

false

Explanation:

equilibrium means equal

therefore thermal equilibrium means when objects are at equal temperature

Answer:

Yep.

Explanation:

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. Gravity will pull the object down. So yes, gravity affects kinetic energy.

Answer:

Kinetic energy is energy an object has because of its motion. A ball held in the air, for example, has gravitational potential energy. If released, as the ball moves faster and faster toward the ground, the force of gravity will transfer the potential energy to kinetic energy.

Explanation:

Answer:

The kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four.

Found it on the internet

Explanation:

Hope this helps dude

Answer:

Pressure = 24000 N/m²

Explanation:

Given the following data;

Force = 120N

Area = 0.5cm² to meters = 0.5/100 = 0.005 m²

To find the pressure;

Pressure= force/area

Pressure= 120/0.005

Pressure = 24000 N/m²

Therefore, the pressure on the archer's fingers is 24000 Newton per meters square.

The pressure on the archer's finger will be  [tex]P=240 \ \frac{N}{cm^2}[/tex]

Pressure is defined as the normal force applied to the particular area. The formula is given as

[tex]P= \dfrac{F}{A}[/tex]

Here

F= Force applied

A= Area at which the force is applied

Now it is given that

F= 120 N

A= 0.5 [tex]cm^2[/tex]

Now by putting the values in the formula we get

[tex]P=\dfrac{120}{0.5} =240\ \frac{N}{cm^2}[/tex]

Thus the pressure on the archer's finger will be  [tex]P=240 \ \frac{N}{cm^2}[/tex]

To know more about Pressure follow

https://brainly.com/question/991185

Answer:

Golf

Explanation:

Golf is NOT considered an invasion game or sport