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3 years ago

6

What do most scientists think causes Bovine Spongiform Encephalopathy (Mad Cow Disease)?

2 answers:

Marianna [84]3 years ago

8 0

Most scientists believe that it is caused by an abnormal protein in brain tissue, called a prion, that can cause fatal disease when eaten.

Katena32 [7]3 years ago

3 0

Additionally, these types of proteins, as mentioned above, are caused by mutations in its actual production. Because all proteins have a specific shape, if one protein's shape is damaged in some way, then they will not be able to fulfill their purpose. In this case, the brain disease you mentioned has mutated and malformed proteins that are normally found to begin near the blood vessels in the neck.

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What is the net force required to accelerate a 884 kg car at 2 m/sec2?

EastWind [94]

Answer:

1768 N

Explanation:

We can solve the problem by using Newton's second law:

$F=ma$

where

F is the net force acting on an object

m is the mass of the object

a is its acceleration

In this problem, we have a car of mass

m = 884 kg

And its acceleration is

$a=2 m/s^2$

Substituting into the equation, we find the net force on the car:

$F=(884)(2)=1768 N$

3 0

3 years ago

A velocity selector is built with a magnetic field of magnitude 5.2 T and an electric field of strength 4.6 × 10 ^4 N/C. The dir

MAXImum [283]

<h2>Answer</h2>

Option A that is 8.8 × 10^3 m/s

<h2>Explanation</h2>

The magnetic field B is defined from the Lorentz Force Law, and specifically from the magnetic force on a moving charge. It says

Field-strength = BVqsinΔ

<h2>v = E/B </h2>

Since field are perpendicular so sin90 = 1

v = 4.6/10^4 / 5.2

v = 8846.15 m /s

The speed at which electrons pass through the selector without deflection = 8846.15 m /s

4 0

3 years ago

Read 2 more answers

Pls help A car starts from rest and gains a velocity of 20m/s in 10 seconds calculate its acceleration and the distance covered

Soloha48 [4]

Answer:

$\boxed{\sf Acceleration \ (a) = 2 \ m/s^{2}}$

$\boxed{\sf Distance \ covered \ (s) = 100 \ m}$

Given:

Initial velocity (u) = 0 m/s

Final velocity (v) = 20 m/s

Time taken (t) = 10 sec

To Find:

(i) Acceleration (a)

(ii) Distance covered (s)

Explanation:

$\sf (i) \ From \ 1^{st} \ equation \ of \ motion:$

$\sf \implies v = u + at$

$\sf \implies 20 = 0 + a(10)$

$\sf \implies 10a = 20$

$\sf \implies \frac{10a}{10} = \frac{20}{10}$

$\sf \implies a = 2 \: m/ {s}^{2}$

$\sf (ii) \ From \ 2^{nd} \ equation \ of \ motion:$

$\sf \implies s = ut + \frac{1}{2} a {t}^{2}$

$\sf \implies s = (0)(10) + \frac{1}{2} \times 2 \times {(10)}^{2}$

$\sf \implies s = \frac{1}{ \cancel{2}} \times \cancel{2} \times {(10)}^{2}$

$\sf \implies s = {10}^{2}$

$\sf \implies s = 100 \: m$

6 0

3 years ago

The force of gravity acting on an object is the object's ______. A. acceleration B. mass C. weight D. matter

ryzh [129]

Answer:

d

Explanation:

3 0

3 years ago

Read 2 more answers

Assume you are given an int variable named nElements and a two-dimensional array that has been created and assigned to a2d. Writ

Alex777 [14]

Answer:

Explained

Explanation:

public int dimension(int [][]a2d,int nElements)

{

int count = 0;

for(int i = 0;i < a2d.length ; i++)

{

count = count + a2d[i].length;

}

return count;

}

3 0

3 years ago