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alexandr1967 [171]
3 years ago
12

Need help with #7 and 8 ASAP

Physics
1 answer:
NeTakaya3 years ago
6 0

Answer:

a) 0.278    b) 22.2

Explanation:

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What is the name of the black hole in the center of the milky way
densk [106]

Answer:

Sagittarius A

Explanation:

The center of the milky way has a big giant hole known as "Sagittarius A". The size is 4 million times bigger than the sun.

4 0
3 years ago
What is the speed of a cyclist that rides west 88 km in 32 minutes?
suter [353]

Answer:

The speed of the cyclist is 2.75 km/min.

Explanation:

Given

  • The distance d = 88 km
  • Time t = 32 minutes

To determine

We need to find the speed of a cyclist.

In order to determine the speed of a cyclist, all we need to do is to divide the distance covered by a cyclist by the time taken to cover the distance.

Using the formula involving speed, time, and distance

s=\frac{d}{t}

where

  • s = speed
  • d = distance covered
  • t = time taken

substitute d = 88, and t = 32 in the formula

s=\frac{d}{t}

s=\frac{88}{32}

Cancel the common factor 8

s=\frac{11}{4}

s=2.75 km/min

Therefore, the speed of the cyclist is 2.75 km/min.

8 0
3 years ago
a solenoid has 364 coils. the flux through each changes from 2.57*10^-5 Wb to 9.44*10^-5 Wb in 0.0154s. how much EMF is generate
timurjin [86]

Answer:

1.62

Explanation:

comment section (credits to <em>charlizebarth</em>)+ correct on acellus

8 0
2 years ago
if the displacement of a car was 150 km [E] and the velocity was 15.0 km/h [E], what was the travel time?
soldi70 [24.7K]
Given,
Displacement of the car = 150 km
Velocity of the car = 15.0 km/h

We need to calculate the travel time t

We all know that the formula to calculate velocity is

Velocity = displacement / time

From the above equation,

Time = Displacement / Velocity

Substituting the values in the above equation, 

Time = 150 / 15.0 = 10 hours
Therefore, travel time = 10 hours.
4 0
3 years ago
A man exerts more pressure while standing on one foot than by two foot​
Setler [38]
Yes? Ok? That’s right??
6 0
3 years ago
Read 2 more answers
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