HELPP PLEASE, which scientist is credited with identifying the human blood groups?

A shopper pushes a 5.32 kg grocery cart with a 12.7 N force directed at -28.7° below horizontal. A friction force of 8.33 N push

atroni [7]

Answer:

0.8214 m/s^2

Explanation:

Fnet= Fpushed - Ffriction

Fpushed = 12.7N Ffriction = 8.33N

Fnet = 12.7N - 8.33N = 4.37N

Fnet= mass(acceleration)

Fnet = 4.37N mass = 5.32 kg

4.37N = 5.32 kg(acceleration)

acceleration= 0.8214 m/s^2

3 0

3 years ago

Two people push on the same door from opposite sides as shown. A man pushes on a door from the left. A woman pushes on the door

AURORKA [14]

Answer:

The door will move when the forces exerted by each individual becomes unbalanced.

Explanation:

The Door will only move when the forces exerted by each of the individual is unbalanced i.e. when the Torque is unbalanced

This is because there will only be a reaction or movement of an object when the applied force > resistant force acting on the object.

example : An object at rest will only move when the applied force is greater than the frictional forces acting on the object at rest.

8 0

3 years ago

A block slides down a plane inclinded at an angle of 37° to the vertical with an acceleration of 6m/s each second. what is the c

Irina18 [472]

Answer:

0.315

Explanation:

resolving weight into components and applying second law of motion we obtain the result

All has been explained in attachment

Download pdf

6 0

4 years ago

A red light, green light, and blue light differ in A. amplitude. B. complexity. C. wavelength. D. purity.

Sindrei [870]

Answer:

A red light, green light, and blue light differ in wavelength

Explanation:

A red light, green light, and blue light differ in wavelength .

Different colors have different wavelengths or frequencies . Two light having different color may have different amplitude . Amplitude decides the intensity of light , not color. Sometimes , a light may be mixture of many color light like white light of the sun . Such light are not pure .

6 0

3 years ago

A very long straight current-carrying wire produces a magnetic field of 20 mT at a distance d from the wire. To measure a field

Dimas [21]

Answer:

A. 4d

Explanation:

Magnetic field strength is inversely proportional to distance. So in order to have a smaller magnetic field, we need to move further out from the wire. How far we go exactly can be determined from the formula: B=(μ₀I)/(2πr)

(That is derived from Ampere's Law, which states ∫B•dl=μ₀I)

With that you can set up a ratio between the magnetic fields in both cases. Because the current is the same for both instances, everything reduces out on one side of the equation and leaves you with something that relates the two distances by a ratio of each magnetic field value.

My work is in the attachment, comment for questions.

7 0

3 years ago