All living things are made up of two or more cells true or false

Answers

Answer 1

Answer: The answer is false because there are single celled organisms.

Related Questions

In a certain semiconducting material the charge carriers each have a charge of 1.6 x 10-19C. How many are entering the semiconductor per second when the current is 2.0 nA?
Which shows the correct order of forces, from weakest to strongest?o weak, strong, gravitational, electromagneticO electromagnetic, weak, strong, gravitationalO gravitational, weak, electromagnetic, strongO weak, electromagnetic, gravitational, strong
The refractive index of water is greater than that of air but is less than that of glass or a diamond. Under which condition can there be total internal reflection in water?
The ability of a material to transfer heat or electric current is calledA. conductivity.B. insulation.C. porosity.D. convection.
A 405 Hz tuning fork and a piano key are struck together, and no beats are heard. When a 402 Hz tuning fork and the same piano key are struck, three beats are heard. What is the frequency of the piano key?

As an object increases in altitude, its mass: Decreases
OR remains the same

Answers

Answer:

Remains same

Explanation:

Mass of an object is measure of the matter it contains. It is independent of height. Commonly when we weigh something we measure its weight and not mass. Weight is a product of mass (m) and acceleration due to gravity (g).

As altitude changes, the amount of matter doesn't change thus the mass will remain constant. But due to the change in height the gravitational force will change and thus weight will vary.

No matter where you are, your mass stays the same. It's weight that changes. Also applies to any object.

A 7.5 kg block is placed on a table . If it's bottom surface area is 0.6m2 how much pressure does the block exert on the table top?

Answers

Pressure is defined as the force per unit area. This measurement is more convenient to use for describing a force exerted. The standard unit for pressure is Pascal. For this problem, force is the gravitational pull from the block. Calculations are as follows:

P = F/A where F = mg

F = 7.5 ( 9.81) = 73.6 N

P = 73.6 N / 0.6 m^2 = 122.6 Pa

A piece of a newly synthesized material of mass 25.0 g at 80.0◦C is placed in a calorimeter containing 100.0 g of water at 20.0◦C. If the final temperature of the system is 24.0◦C, what is the specific heat capacity of this new material? 1. 1.20 J/g ◦C 2. 7.46 J/g ◦C 3. 4.76 J/g ◦C 4. 0.30 J/g ◦C 5. 0.84 J/g ◦C

Answers

Answer:

1.Cp₁ = 1.2 J/g.⁰C

Explanation:

For new material:

m₁ = 25 g

T₁ = 80⁰C

specific heat of water = Cp₁

For water :

m₂ = 100 g

T₂ = 20⁰C

The final temperature T=24⁰C

We know that specific heat of water Cp₂ = 4.187 kJ/kg.K

The heat lost new material = Heat gain by Water

m₁ Cp₁ ( T₁ - T ) = m₂ Cp₂ (T- T₂)

25 x Cp₁ (80- 24 ) = 100 x 4.817 (24 - 20 )

Cp₁ x 56 = 4 x 4.187 x 4

$C_(p1)=(4* 4.187* 4)/(56)\ kJ/kg.K$

Cp₁ = 1.19 kJ/kg.K

Cp₁ = 1.2 J/g.⁰C

The work done by stretching a certain spring increases by 0.13x joules per centimeter (where x is the displacement, in centimeters, beyond the spring's natural length). How much work (in Joules) must be done in order to stretch the spring from x?

Answers

Answer:

$W = 0.06\cdot (x_(f)^(2)-x_(o)^(2))$

Explanation:

The work done by stretching the spring is:

$W = 0.13\int\limits^{x_(f)}_{x_(o)} x\, dx$

$W = 0.06\cdot (x_(f)^(2)-x_(o)^(2))$

If a car goes along a straight road heading west and speeds up from 25 ft/s to 60 ft/s in 5 s, calculate the acceleration.

Answers

Acceleration =

   (change in speed) / (time for the change)
and
   direction of the change.

Change in speed = (end speed)-(start speed) = (60 - 25) = 35 f/s
Time for the change = 5 sec
Direction of the change = west

   Acceleration = 7 ft/sec² west .

What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s? A. 5.0 J B. 6.5 J C. 10.0 J D. 12.5 J

Answers

The kinetic energy of a moving body can be determined from its mass and velocity of the body. The kinetic energy of 1.0-kg billiard ball that moves at 5.0 m/s is 12.5 J. Hence, option D is correct.

What is kinetic energy?

Kinetic energy is a form of energy generated in body by virtue of its motion. It is directly proportional to the mass and square of velocity of the body. The equation of kinetic energy is written as follows:

KE = 1/2 mv²

When a body starts moving its kinetic starts to increase while the potential energy drops out. However the total mechanical energy in the system will be conserved.

The mass of the billiard ball is given 1 kg and the velocity is 5 m/s. Then the kinetic energy of the ball is calculated as follows:

KE = 1/2 1 kg × ( 5 m/s )².

= 1/2 × 25

= 12.5 J.

Therefore, the kinetic energy of 1.0-kg billiard ball that moves at 5.0 m/s is 12.5 J. Hence, option D is correct.

To find more about kinetic energy, refer the link below:

brainly.com/question/12669551

#SPJ5

The formula for a kinetic energy (KE) is
KE = 0.5*m*v²

Given m = 1.0 kg, v = 5.0 m/s, so
KE = 0.5*1.0*(5.0)² = 12.5 J

The answer is D.

Other Questions

How can you determine the speed of an object with only a tape measure and a stopwatch?

Which type of weather event is caused by a tropical low-pressure system with strong, sustained winds?

Tech A says that a battery stores electrical energy in chemical form. Tech B says that a battery creates direct current. Who is correct?

What could you do to change the volume of a gas?