1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
HACTEHA [7]
3 years ago
14

The ,______provides rigidity and protection to the plant cell​

Physics
1 answer:
balandron [24]3 years ago
7 0

Answer:

cell wall hope this will help

You might be interested in
An equation for the motion of an object is given as 2vt-4x=Bt^2 where B is a constant. The variable v indicates velocity, in met
Jlenok [28]

Answer:

acceleration m/s²

Explanation:

The units on the left side of the equation are units of length. The units on the right side of the equation must be units of length also. Acceleration times time squared gives length.

8 0
4 years ago
Read 2 more answers
What is an organism's specific role in an ecosystem
Harman [31]
<span>Niche - </span><span>An organism's particular role in an ecosystem, or how it makes its living.</span>
7 0
3 years ago
Read 2 more answers
An electron in a tv picture tube is accelerated through a potential difference of 10 kv before it hits the screen. What is the k
fomenos

Answer:

10,000 eV

Explanation:

Due to the law of conservation of energy, the kinetic energy of the electron at the end of its path is equal to its initial electric potential energy, given by:

U=q\Delta V

where

q is the electron charge

\Delta V is the potential difference

Here we have:

q=1 e is the electron's charged

\Delta V=10 kV=10,000 V is the potential difference

Substituting into the formula, we have

U=(1e)(10,000 V)=10,000 eV

8 0
4 years ago
How would you present weight change if earth had twice the mass that it does now
rosijanka [135]

Twice the mass means twice the acceleration due to gravity which will increase acceleration by the factor of 2 thus the weight will be double the time.

4 0
3 years ago
Please do parts (a) and part (b) below and include diagrams where applicable:
Harlamova29_29 [7]

Answer:

Part a)

m = 232.1 gram

Part b)

M = 928.6 gram

Explanation:

Part a)

As we know that frequency of vibration for a given spring block system is given by formula

f = \frac{1}{2\pi}\sqrt{\frac{k}{m}}

so if it is given as 0.90 Hz then we will have

0.90Hz = \frac{1}{2\pi}\sqrt{\frac{k}{m}}

Now if additional mass is attached with it the frequency changed to 0.50 Hz

0.50 Hz = \frac{1}{2\pi}\sqrt{\frac{k}{m + 520}}

now divide two equations

\frac{0.90}{0.50} = \sqrt{\frac{m + 520}{m}}

3.24m = m + 520

m = 232.1 g

Part b)

Now the frequency is changed to 0.45 Hz

so again we will have

0.45 Hz = \frac{1}{2\pi}\sqrt{\frac{k}{M}}

again divide it with first equation above

\frac{0.90}{0.45} = \sqrt{\frac{M}{m}}

as we know that m = 232.1 g

so total mass needed for 0.45 Hz will be

M = 928.6 gram

7 0
3 years ago
Other questions:
  • Why is it realistic to say all living organisms are solar powered
    11·1 answer
  • It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases 2.80 × 107 J of energy when
    7·1 answer
  • A ball is thrown straight up. What can be said about the sign of work done by the force exerted by gravity while the ball moves
    10·1 answer
  • A pulley system has an efficiency of 65.1%. If you perform 350 J of work, how much useful work does the pulley perform?
    14·1 answer
  • 2. Assertion (A): Two vectors are said to be like vectors if they have same direction.
    11·1 answer
  • An offshore oil well is 2 kilometers off the coast. The refinery is 4 kilometers down the coast. Laying pipe in the ocean is twi
    7·1 answer
  • _________ is a rhythmic disturbance that carries energy through matter or space.
    15·2 answers
  • If a 25 kg lawnmower produces 347 w and does 9514 J of work, for
    5·1 answer
  • Describe the two dimensions of the motion of an object in a circle due to centripetal force. Explain why putting them together r
    12·1 answer
  • Two illustrations of transverse waves. The one with shorter crests is labeled A. The wave with taller crests is labeled B. Which
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!