All categories

3 years ago

PLEASE HELP i really need help with these

Physics

2 answers:

enyata [817]3 years ago

7 0

Answer:

Explanation:

IDK

katovenus [111]3 years ago

4 0

Technology- technology is like my phone or laptop

Invention- an invention is what someone created that was not created before

Brainstorm- brainstorming is like when your writing down bits and pieces of what you will do before doing it

Constraint- constraining is like being very focused on what you are doing

Trade-off - it's like trading something for something else

You might be interested in

The constant forces F1 = 8 + 29 + 32 N and F2 = 48 - 59 - 22 N act together on a particle during a displacement from the point A

marshall27 [118]

Answer:

-600 J

Explanation:

F₁ = 8i +29 j + 32k

F₂ = 48 i - 59 j - 22 k

F = F₁ +F₂ = 8i +29 j + 32k +48 i - 59 j - 22 k

F = 56i - 30 j + 10 k

displacement d = ( 0 - 20 )i + ( 0 - 15 )j + ( 7 -0) k

d = - 20 i - 15 j + 7 k

Work Done = F dot product d

F . d = - 56 x 20 - 30 x - 15 + 10 x 7

= - 1120 +450 + 70

= -600 J

5 0

3 years ago

If it takes 600 N to move a box 5 meters, how much work is done on the box?

Arada [10]

Answer:3000joules

Explanation: work=force×distance

Work=600×5

Work=3000joules

6 0

4 years ago

Which amusement park ride utilizes periodic motion?

tatyana61 [14]

Any ride that oscillates back and forth or moves only in a complete circle utilizes periodic motion.

8 0

3 years ago

Expressing Experimental Error If the accepted value of π is 3.1416, what are the fractional error and the percent error of the e

LUCKY_DIMON [66]

Answer:

1) Δx = 0.16 m / s² , Δx = 9.72-9.8 = 0.08 m / s²

2) e% = 1.63% , , e% = 0.816%

3) 1e% = 0.04

Explanation:

The fractional error in a quantity is the absolute error between the accepted value of the quantity and the percentage error is the fractional error per 100

In this case, it is not indicated which is the measured experimental value of pi, suppose that a value of 3.142 is measured

fractional error

e = (ax - ax_average) / x_average

e = (3.142 - 3.1416) / 3.1416

e = 1.27 10⁻⁴

the percentage error is

% = e 100

% = 1.27 10-4 100

% = 1.27 10⁻²%

1) Δx = 9.96-9.8 = 0.16 m / s²

Δx = 9.72-9.8 = 0.08 m / s²

2) the percentage difference

x = 9.96 m / s2

e% = (9.96 - 9.80) / 9.80 100

e% = 1.63%

x = 9.72 m / s2

e% = (9.72 -9.80) / 9.80 100

e% = 0.816%

3) the mean value is

x_average = (x1 + x2) / 2

x_average = (9.96 + 9.72) / 2

x_average = 9.84 m / s2

e% = (9.84 - 9.80) / 9.80 100

1e% = 0.04

7 0

3 years ago

A balloon is filled with air to a capacity of 6 L while underwater at a depth where the water pressure is 210 kPA. To what volum

Colt1911 [192]

Answer: Thus the balloon will expand to 12.5 L if it suddenly rose to the surface.

Explanation:

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

$P_1V_1=P_2V_2$