All categories

3 years ago

Which one is easy to hold in hand,a glass sheet or a cardboard? give reason

Physics

1 answer:

yanalaym [24]3 years ago

4 0

Answer:

(d) Force of friction acts in solids, liquids and gases and opposes the motion with respect to each other.

You might be interested in

A bungee jumper with a weight of 613 N leaps off

Ierofanga [76]

Answer:

13.9 kJ

Explanation:

Work = force × distance

W = (613 N) (22.6 m)

W = 13,900 J

W = 13.9 kJ

6 0

4 years ago

IMPORTANT ANSWER ALL 3 PLEASE!

frozen [14]

Answer:

4. Liters

5. Celsius

6. Grams

8 0

3 years ago

What are the six regions of the Sun?

marusya05 [52]

Answer:

The Core, Radiation Zone, Convection Zone, Photosphere, Chromosphere, and the Corona.

Explanation:

4 0

3 years ago

Read 2 more answers

Aliya deposited half as much money in a savings account earning 1.9% simple interest as she invested in a money market account t

yanalaym [24]

Let A be the amount of money that Aliya deposited in the savings account. Since A is half as much as money as she invested in a money market account, then the amount that she invested in the market account is 2A.

Express the interest that Aliya earned in terms of A. Set it equal to the amount of $297.60 and then solve for A.

Since the savings account gives 1.9% simple interest, the total amount of interest that she will earn from the savings account is 1.9% of A, which is equal to:

$\frac{1.9}{100}\times A$

Since the money market account gives 3.7% simple interest, the total amount of interest that she will earn from the money market account, is 3.7% of 2A, which is equal to:

$\frac{3.7}{100}\times2A$

Add both interests in terms of A and simplify the expression:

$\begin{gathered} \frac{1.9}{100}\times A+\frac{3.7}{100}\times2A \\ =\frac{1.9}{100}\times A+\frac{7.4}{100}\times A \\ =(\frac{1.9}{100}+\frac{7.4}{100})\times A \\ =\frac{1.9+7.4}{100}\times A \\ =\frac{9.3}{100}\times A \end{gathered}$

The expression (9.3/100)*A represents the total interest after one year. Then:

$\begin{gathered} \frac{9.3}{100}\times A=297.60 \\ \Rightarrow A=\frac{100}{9.3}\times297.60 \\ \Rightarrow A=\frac{100\times297.60}{9.3} \\ \Rightarrow A=\frac{29760}{9.3} \\ \Rightarrow A=3200 \end{gathered}$

Use the value of A to find the amount that was invested in the money market account:

$2A=2\times3200=6400$

Therefore, Aliya deposited 3200 in a savings account and 6400 in a money market account.

3 0

1 year ago

A 2-kg ball is held 4 m above the ground. Relative to the ground its potential energy is

oee [108]

Answer:

78.4 J

Explanation:

The gravitational potential energy of the ball (relative to the ground) is given by

$U=mgh$

where

m = 2 kg is the mass of the ball

g = 9.8 m/s^2 is the acceleration due to gravity

h = 4 m is the height of the ball above the ground

Substituting numbers into the formula, we find

$U=(2 kg)(9.8 m/s^2)(4 m)=78.4 J$

4 0

4 years ago