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
sertanlavr [38]
3 years ago
12

A particle of mass m is projected from point A with an initial velocity v0 perpendicular to line OA and moves under a central fo

rce F along a semicircular path of diameter OA. Observing that r = r0 cos θ and r 2 q = h, show that the speed of the particle is v = v0 /cos2 θ

Mathematics
1 answer:
Mademuasel [1]3 years ago
8 0

Answer:

Detailed solution is given :

You might be interested in
The formula for the area A of a trapezoid is A=1/2(b1+b2)h, where b1 and b2 represents the lengths of the bases and h represents
aleksandr82 [10.1K]

Answer:

B. h=2A/(b1+b2) . . . . parentheses are needed

Step-by-step explanation:

Multiply the equation by the inverse of the coefficient of h. That coefficient is (b1 +b2)/2, so its inverse is 2/(b1 +b2). Parentheses are needed.

... 2A/(b1 +b2) = h

_____

<em>Comment on the answer choices</em>

As written, <em>none of them are correct</em>. The denominator can only be written without parentheses if the division bar is horizontal, and so serves also as a grouping symbol.

6 0
4 years ago
Side's of a triangle to side of a square​
Masja [62]

Answer:

3:4

Step-by-step explanation:

there are 3 sides on a triangle and 4 on a square

3 0
3 years ago
Read 2 more answers
Which is twenty thousand eight hundred twelve written with base-ten numerals
vagabundo [1.1K]

Answer:

The answer is 20812

The numeral system we use is a base ten numeral system. Base ten numeral numbers are: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

The number has:

2 "tens thousands" = 2 * 10000 = 20000

0 "thousands" = 0

8 "hundreds " = 8 * 100 = 800

1 "tens" = 1 * 10 = 10

2 "ones" = 2 * 1 = 2

Sum all the results => 20000+800+10+2 = 20812

That is how you write a number using base ten numerals (numbers from 0 to 9)

6 0
4 years ago
A regression model involved 18 independent variables and 200 observations. The critical value of t for testing the significance
Evgen [1.6K]

Answer:

The correct answer to the following question will be Option d (181 degrees of freedom).

Step-by-step explanation:

The given values are:

Regression model,

n = 200

Observations,

p = 18

Now,

⇒  n-p-1

On putting the estimated values, we get

⇒  200-18-1

⇒  181

So that the correct choice will be "181 degrees of freedom".

6 0
3 years ago
Hi I’ll appreciate it if you help me!
dexar [7]
The answer would be 30in.
Reasoning: if the two figures are proportional, you would set it up in a proportion. It would be 36/x=12/10. Then cross multiply, so it would be 12x and 36(10). Afterwords you’ll have 12x=360, then divide both sides by 12 and you’ll end up with 30.
4 0
3 years ago
Other questions:
  • write quadratic equation whose roots are 4 and -3 and whose leading coefficient is 5 use the letter X to represent the variable
    7·1 answer
  • Help asap<br> Solve for x. 2x2 – 7x = 4
    14·2 answers
  • Is 4/5 greater than 0. 75
    7·1 answer
  • Which is an equation of an asymptote of the hyperbola?
    14·1 answer
  • What is the value of 2 in 83628 and 208
    8·2 answers
  • Solve this quadratic equation using factorization<br> 8xsquared-14x-4=0
    8·2 answers
  • A retailer sold an electric item to a customer at a loss of 10 percent the customer purchase it for rs 25425 including 13, perce
    14·1 answer
  • List the temperatures in order from hottest to
    8·1 answer
  • If the side length of a square is 4 inches, its area is __ square inches and its priemeter is __ inches.
    8·1 answer
  • Gerald will chooses color of shirt and a style of tie to wear today. He can choose from a
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!