HELP PLZ!!! what’s the answer?

Answer:

give brainliest please

Explanation:

T- lymphocytes or T cells

Answer:

Explanation:

The mass of the car can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{2700}{1.63} \\ = 1656.4417...[/tex]

We have the final answer as

Hope this helps you

Answer:

0.45m/s

Explanation:

Given parameters:

Distance = 1.8m

Time  = 4s

Unknown:

Speed of the car  = ?

Solution:

The speed of a body is the distance divided by the time.

       Speed  = [tex]\frac{distance}{time}[/tex]  

So;

     Speed  = [tex]\frac{1.8}{4}[/tex]   = 0.45m/s

Answer:

False

Explanation:

the total distance of a moving body is always positive

Distance is the total distance between any two points

I think its "a dropped penny sinks at the bottom of a pond". Because, non-contact force is a force that you don't touch, like gravity or weight, that falls but you didn't drop it on purpose nature did or gravity itself did.

Answer:

Masseter

The masseter runs from the temporal bone (that forms part of the sides and base of the skull) to the lower jaw (the mandible). It lifts the lower jaw, to close the mouth. The masseter is the strongest muscle in your body.

Temporalis

The temporalis begins on two bones of the skull, at the front (the frontal) and at the side and base (the temporal). It runs to the top of the lower jaw (the mandible). Like the masseter, the temporalis helps close the mouth.

Deltoid

The deltoids are the triangular muscles of the shoulder. The strongest point is the central section, which raises the arm sideways. The front and back parts of the muscle twist the arm. Deltoid comes from the Greek word deltoeides, meaning shaped like a (river) delta, which is triangular.

Pectoralis major

(The pecs!) The pectoralis major is a large, fan-shaped muscle. It covers much of the front upper chest, beginning at the breastbone (or sternum) including the second to the sixth ribs.

Adductor Longus

The adductor longus is located on the inner thigh. Adduct means move, so this muscle allows the thigh bone (the femur) to move inward and to the side.

Soleus

Located in the lower leg, the soleus runs from the lower leg bones (the tibia and fibula) to the heel (the calcaneus). The soleus muscle flexes the foot by moving the foot at the ankle. It also helps circulation by pumping blood back up towards the head.

Biceps brachii

The biceps brachii runs from the shoulder to the elbow. It is attached to the shoulder blade (the scapula), and extends along the front surface of the upper arm bone (the humerus). When the bicep contracts, the arm bends at the elbow. Notice that humerus sounds like humour – we call this area of the elbow the funny bone.

The Buccinator

The buccinator muscle compresses the cheek. This muscle allows you to whistle, blow, and suck; and it contributes to the action of chewing.

The Suprahyoid

The suprahyoid muscles raise the hyoid bone, the floor of the mouth, and the larynx during deglutition.

The Splenius

The splenius muscles originate at the midline and run laterally and superiorly to their insertions. From the sides and the back of the neck, the splenius capitis inserts onto the head region, and the splenius cervicis extends onto the cervical region. These muscles can extend the head, laterally flex it, and rotate it.

Answer:

naturalistic observation

Explanation:

Answer:

4.7m

Explanation:

Given parameters:

Mass of the book  = 1kg

Gravitational potential energy  = 46J

Unknown:

Height of the shelf  = ?

Solution:

The potential energy is due to the position of a body above the ground.

        Gravitational potential energy  = mgh

m is the mass,

g is the acceleration due gravity  = 9.8m/s²

h is the height which is unknown

                       46  = 1 x 9.8 x h

                       h  = 4.7m

Answer:

Inertia is the tendency of an object to resist a change in its motion. Because of inertia, a resting object will remain at rest, and a moving object will keep moving. Objects with greater mass have greater inertia

Answer:

The Football

Explanation:

They have the same velocity, but different shapes and weight. Although the balling ball would be easier to stop (due to slow velocity), but if you see a bowling coming your way in the air, GET OUT OF THE WAY!

Answer:

The position where an earthquake begins below the earths surface is called the hypo center. The point directly above the hypo center is called the epicenter.

Explanation:

www.usga.gov | United States of America Department of Geological Surveys.

Answer:

Explanation:

6.25

The magnitude of the centripetal force that must be applied is 6.25 N.

The given parameters;

The magnitude of the centripetal force that must be applied is determined by the product of the mass of the object and the centripetal acceleration.

The centripetal force is calculated as follows;

[tex]F_c = ma_c = \frac{mv^2}{r} \\\\F_c = \frac{0.5 \times 5^2}{2} \\\\F_c = 6.25 \ N[/tex]

Thus, the magnitude of the centripetal force that must be applied is 6.25 N.

Learn more here: https://brainly.com/question/14905888

Answer:

Swimmer B had the greatest displacement:)

Explanation:

Hope you do great! :)

brainliest would be nice:)

Answer:

You are given that the mass of the clock M is 95 kg.

This is true whether the clock is in motion or not.

Fs is the frictional force required to keep the clock from moving.

Thus Fk = uk W = uk M g      the force required to move clock at constant speed.     (the kinetic frictional force)

uk = 560 N / 931 N = .644   since the weight of the clock is 931 N  (95 * 9.8)

us  is the frictional force requited to start the clock moving

us = static frictional force = 650 / 931 -= .698

Answer:

When the motion of an object changes, the forces are unbalanced. Balanced forces are equal in size and opposite in direction. When forces are balanced, there is no change in motion.

Explanation:

Answer:

Yes

Explanation:

Example of ionic bonding takes place between magnesium(mg) and oxygen(02) to form magnesium oxide (mg0).... Magnesium loses two electrons to form Mg2+, and oxygen gains two electrons to form 02-

Answer:

Explanation:

I hope it helps

Answer:

6.5 m/s

Explanation:

We are given that

Distance, s=100 m

Initial speed, u=1.4 m/s

Acceleration, [tex]a=0.20 m/s^2[/tex]

We have to find the final velocity at the end of the 100.0 m.

We know that

[tex]v^2-u^2=2as[/tex]

Using the formula

[tex]v^2-(1.4)^2=2\times 0.20\times 100[/tex]

[tex]v^2-1.96=40[/tex]

[tex]v^2=40+1.96[/tex]

[tex]v^2=41.96[/tex]

[tex]v=\sqrt{41.96}[/tex]

[tex]v=6.5 m/s[/tex]

Hence, her final velocity at the end of the 100.0 m=6.5 m/s

Answer:

6.5

Explanation:

Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

Answer:

nebula

Explanation:

Answer:

P = 90 W

Explanation:

Mass of an object, m = 30 kg

Speed of the object, v = 15 m/s

Distance, d = 10 m

Work done, W = 900 J

Time, t = 10 s

We need to find the power generated by this project. We know that power is equal to work done divided by time taken.

So,

[tex]P=\dfrac{W}{t}\\\\P=\dfrac{900\ J}{10\ s}\\\\P=90\ W[/tex]

So, the required power generated is 90 W.

Answer:

Follows are the solution to this question:

Explanation:

In point a:

Place of particles

[tex]X(t)=\int V_{x}(t)dt[/tex]

       [tex]=\int 2t^{2}dt\\\\=\frac{2}{3}t^{3}+C[/tex]

[tex]\to t=0\\\\ \to X(0)=2.3 \ m[/tex]

[tex]\to X(0)=0+C\\\\ \to C=2.3\ m[/tex]

[tex]\to X(t)=( \frac{2}{3})t^3 + 2.3\\\\ \to t=2.2\\\\\to X=( \frac{2}{3})\times 2.2^3 +2.3 \\\\[/tex]

        [tex]= \frac{2}{3}\times 10.648 +2.3\\\\= \frac{21.296}{3}+2.3\\\\ = 7.09+2.3\\\\ =9.39\\\\ =9.4\ m[/tex]

In point b:

when [tex]t=2.2 \ s[/tex]

the Particle velocity  [tex](V)=2 \times 2.22 =9.68\ \frac{m}{s}[/tex]

In point c:

Calculating the Particle acceleration:

[tex]\to a=\frac{dV}{dt} =4\ t\\\\\to t=2.2 \ s\\\\\to a=4\times 2.2 =8.8 \ \frac{m}{s^2}[/tex]

Answer:

A

Explanation:

I took that test

Answer:

D

Explanation:

Through the process of cellular respiration, Energy in food is converted into energy that can be used by the body.

During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, energy is transferred  to ATP