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katrin2010 [14]
2 years ago
12

Daria was swimming in a friend’s pool yesterday, when she saw that a fly had landed in the water about 5 feet away from her. She

began screaming, jumped out of the pool as fast as she could, and refused to get back in for the rest of the day. This is not the first time that her fear of bugs has interfered with a nice afternoon outside, and she has been less and less willing to participate in such activities recently. Daria probably suffers from _________.
Physics
1 answer:
jasenka [17]2 years ago
5 0

Answer:

Daria probably suffers from Entomophobia.

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A race car driver must average 200km/hr for four laps to qualify for a race. Because of engine trouble, the car averages only 17
vampirchik [111]
The average speed would have to be 260 km/hr due to the driver originally going 30 km/hr too slow the first two laps
5 0
2 years ago
A boy and a girl are riding a merry-go-round which is turning at a constant rate. the boy is near the outer edge, while the girl
scZoUnD [109]
I think that the girl has greater tangential acceleration because she is closer to the center and the acceleration is greater there. 
7 0
2 years ago
Read 2 more answers
A jogger runs 10.0 blocks do east, 5.0 blocks due South, and another two. Zero blocks do east. Assume all blocks are equal size,
Annette [7]

Jogger moves in three displacements

d1 = 10 blocks East

d2 = 5 blocks South

d3 = 2 blocks East

now we can say

total displacement towards East direction will be

d_x = 10 + 2= 12 blocks

Total displacement towards South

d_y = 5 block

now to find the net displacement we can use vector addition

d = \sqrt{d_x^2 + d_y^2}

d = \sqrt{12^2 + 5^2}

d = 13 blocks

<em>so magnitude of net displacement will be equal to 13 blocks</em>

6 0
1 year ago
A 248-g piece of copper is dropped into 390 mL of water at 22.6 °C. The final temperature of the water was measured as 39.9 °C.
Sedaia [141]

Answer:

335°C

Explanation:

Heat gained or lost is:

q = m C ΔT

where m is the mass, C is the specific heat capacity, and ΔT is the change in temperature.

Heat gained by the water = heat lost by the copper

mw Cw ΔTw = mc Cc ΔTc

The water and copper reach the same final temperature, so:

mw Cw (T - Tw) = mc Cc (Tc - T)

Given:

mw = 390 g

Cw = 4.186 J/g/°C

Tw = 22.6°C

mc = 248 g

Cc = 0.386 J/g/°C

T = 39.9°C

Find: Tc

(390) (4.186) (39.9 - 22.6) = (248) (0.386) (Tc - 39.9)

Tc = 335

7 0
1 year ago
What is the thickness required of a masonry wall having thermal conductivity 0.75 W/m K if the heat rate is to be 80% of the hea
Leya [2.2K]

Answer:

the thickness required of a masonry wall L = 375mm

Explanation:

The detailed steps and appropriate use of fourier's law of heat conduction is as shown in the attached file.

5 0
2 years ago
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