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3 years ago

As the ball rolls down the ramp, there are changes in kinetic and potential energy. How much kinetic energy does the

Physics

2 answers:

Sonja [21]3 years ago

8 0

The answer is C, 50J

Please mark brainliest Have a nice day :)

pogonyaev3 years ago

5 0

C 50j the ball is at when reaches point b

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A key lime pie in a 10.00 inch diameter plate is placed upon a rotating tray. Then, the tray is rotated such that the rim of the

juin [17]

Answer:

The angular distance in revolution is $revolution = 3.439 \ revolution$

The angular distance in radians is $\theta_{rad}= 21.6 \ radians$

The angular distance in degrees is $\theta =1238.04^o$

The angular size is $Z = \frac{2}{9} \pi \ radians$

Explanation:

From the question we are told that

The diameter is $d = 10 \ inches$

The distance moved by the rim is $D = 108 \ inches$

Generally the circumference of the pie plate is mathematically represented as

$C = \pi d$

Substituting the values

$C = 10 *3.142$

$= 31.42 \ inches$

The number resolution carried out by the pie plate is evaluated as

$revolution = \frac{D}{C}$

Substituting value

$revolution = \frac{108}{31.4}$

$revolution = 3.439 \ revolution$

The angular distance $\theta_{rad}$ is mathematically evaluated as

$\theta_{rad} = \frac{D}{r}$

Where r is the radius which is mathematically evaluated as

$r = \frac{d}{2} = \frac{10}{2} = 5 \ inches$

Substituting this into the equation for angular distance

$\theta_{rad} = \frac{108}{5}$

$\theta_{rad}= 21.6 \ radians$

The angular distance traveled in degrees is

$\theta = 3.439 *360$

$\theta =1238.04^o$

When the pie is cut into 9 equal parts

The angular size would be mathematically evaluated as

$Z = \frac{2\pi}{9}$

$Z = \frac{2}{9} \pi \ radians$

7 0

4 years ago

If u add 1.362 and 25.2 what is the correct answer?

krek1111 [17]

Answer:

26.562

Explanation:

1+25= 26

0.362+0.2= 0.562

26+0.562= 26.562

or just use a calculator

6 0

2 years ago

Maria is filling a bucket of water from a faucet. After she turns it on, she sees that the cross-sectional area of the water str

GenaCL600 [577]

Answer:

t = 47.62 sec

Explanation:

Given data;

$A_1 = 4.62 \times 10^4 m^2$

$A_2 = 2.52 \times 10^4 m^2$

h = 2.50 cm

volume 10 L

from

$A_1 v_1 = A_2 v_2$

$4.62 \times 10^4 v_1 = 2.52 \times 10^4 v_2$

$4.62 v_1 = 2.52 v_2$ ......1

from bernoulli eq

$P_1 + \frac{1}{2} \rho v_1^2 + \rho g h = P_2 + \frac{1}{2} \rho v_2^2$

$P_1 =P_2 = P_{atm}$

$v_2^2 = v_1^2 +2gh$ ... 2

from 1 and 2 equation

$v_1 = 0.46 m/s$

volume flow rate is

$Q = A_1 \times v_1 = 4.62 \times 10^[-4} v_1 = 2.1 \times 10^{-4} m^3/s$

$t = \frac{v}{Q}$

$t =\frac{10\times 10^{-3}}{2.1 \times 10^{-4}} = 47.62 s$

3 0

3 years ago

Read 2 more answers

How much work is done if a 4500 N piano is lifted 10 m?

AveGali [126]

Answer:

45000 J

Explanation: multiply the 4500 N by the 10 m

6 0

3 years ago

The Chartered Institute of Management Accountants defines activity-based cost management as follows: "An approach to the costing

egoroff_w [7]

Answer:

ABC is the activity based accounting. It is the costing done for each separate activity which maybe unit level, batch level, product sustaining or facility sustaining.

Explanation:

The basic difference between ABC and traditional costing systems can be explained with the help of the following diagram.

Traditional Costing System

Overhead Cost Accounts (For each individual expense e.g. tax)

First Stage Allocation

Cost Centers ( normally Departments)
Cost Centers ( normally Departments)

N. Cost Centers ( normally Departments)

Second Stage Allocation ( Direct Labor Or Machine Hours)

Cost Objects ( products, services and customers)

ACTIVITY BASED COSTING SYSTEMS

Overhead Cost Accounts (For each individual expense e.g. tax)

First Stage Allocation ( resource cost drivers)

Activity Cost Centers
Activity Cost Centers

N. Activity Cost Centers

Second Stage Allocation ( activity cost drivers)

Cost Objects ( products, services and customers) (Direct Costs)

Four steps are involved in the design of ABC systems.

identifying the major activities that take place in an organization
assigning cost to cost pools / cost centers for each activity
determining the cost for each major activity
assigning the cost of activities to products according to the product's demand for activities.

The first two steps relate to the first stage and final two steps to the second stage of the two - stage allocation process shown above.

5 0

3 years ago