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8090 [49]
3 years ago
12

A runner travels at a constant speed of 4 m/s. What happens to the velocity of the runner when the runner changes direction?

Chemistry
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

4m/s in the direction of the turn

Explanation:

The velocity of an object is the rate of change of its position with respect to a frame of reference.

Assuming the runner stays the same speed as he turns, his velocity will be 4m/s in the speed he turns.

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Explain what would happen to the air temperature at Riverdale School over the course of the
monitta

Answer:

Air temperature increases.

Explanation:

The air temperature at Riverdale School increases if the groundwater system were used because this system uses very huge amount of water than the other system. By using more molecules having the same temperature, the thing with more molecules has more total kinetic energy or thermal energy than the thing with fewer molecules so that's why air temperature of the school is increases.

8 0
3 years ago
An unsaturated hydrocarbon is A. a hydrocarbon that contains oxygen. B. a compound in which all carbon atoms have four single bo
LUCKY_DIMON [66]

Answer: C. a compound in which one or more carbon atoms have double or triple bonds.

Explanation:

Saturated hydrocarbons are defined as the hydrocarbons in which single bond is present between C-C atoms. The general formula used for these hydrocarbons is  C_nH_{2n+2}. Example: CH_4

Unsaturated hydrocarbons are defined as the hydrocarbons which have double or triple covalent bonds present between carbon and carbon atoms. They are known as alkenes and alkynes respectively. The general formula used for these hydrocarbons is C_nH_{2n} and C_nH_{2n-2} respectively. Example: CH_2=CH_2

Both the hydrocarbons are not soluble in water as they are non polar in nature unlike water which is polar.

Cycloalkanes are also saturated hydrocarbons as single bond is present between C-C atoms.

Thus the correct statement is An unsaturated hydrocarbon is a compound in which one or more carbon atoms have double or triple bonds.

6 0
3 years ago
A gas at 200 Celsius and 10.0L expands to 20.0L. What is the new temperature in Celsius
QveST [7]

Answer:

400celcius

Ex:

200 per 10.0L

400 per 20.0L

4 0
2 years ago
Your teacher has set up an investigation for class today. The following materials are on the science lab table.
morpeh [17]

Answer:

Explanation:

c.

4 0
2 years ago
Read 2 more answers
1. For one atom of lithium -6 I will need_____ atom of lithium -7 for an average atomic mass of 6.944? 2. For one atom of lithiu
Hoochie [10]

Answer:

For one atom of lithium -6 I will need_16.85____ atom of lithium -7 for an average atomic mass of 6.944 .

Explanation:

1 ) Let required atom be m .

\frac{6\times 1 + 7\times m}{1 + m} = 6.944

6 + 7m = 6.944 + 6.944m

7 m - 6.944 m = .944

.056 m = .944

m = 16.85

6 0
4 years ago
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