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maw [93]
3 years ago
7

You drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip tak

es 20 min. What is your velocity in m/s?
-9 m/s
+4 m/s
0 m/s
-3 m/s
Physics
2 answers:
Mrac [35]3 years ago
6 0
1. Find the total distance.
2 km + 4 km + 4.5 km = 10.5 km

2. Convert this distance into metres.
1 kilometre = 1000 metres
10.5 x 1000 = 10,500 metres

3. Convert the time taken into seconds.
1 minute = 60 seconds
20 x 60 = 1,200 seconds

4. Divide the total distance by the total time taken.
10,500 / 1,200 = 8.75

Your velocity is 8.75 m/s
Luba_88 [7]3 years ago
4 0
Your velocity is 8.75 m/s
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When conducting this experiment, some procedures call for heating the substance several
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when completing a science experiment it is important to run multiple tests do as to reduce the risk of any outliers of false results

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Which of the following statements are true for magnetic force acting on a current-carrying wire in a uniform magnetic field? Che
qaws [65]

Answer:

The following statements are correct.

1. The magnetic force on the current-carrying wire is strongest when the current is perpendicular to the magnetic field lines.

2. The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the field.

3. The direction of the magnetic force acting on a current-carrying wire in a uniform magnetic field is perpendicular to the direction of the current.

Wrong statements:

1. The magnetic force on the current-carrying wire is strongest when the current is parallel to the magnetic field lines.

Explanation:

6 0
3 years ago
When a net force of 17.0 newtons is applied to a dictionary placed on a frictionless table, it accelerates by 3.75 meters/second
4vir4ik [10]
Force = (mass) x (acceleration)    (Newton's second law of motion)

Divide both sides of the equation by 'acceleration', and you have

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8 0
3 years ago
In an economy, the demand for labor is given by the equation W = 15 - (1/200) L and the supply of labor is given by the equation
mr_godi [17]

Answer:

the equilibrium wage rate is 10  and the equilibrium quantity of labor is 1000 workers

Explanation:

The equilibrium wage rate and the equilibrium quantity of labor are found as the point where the equation of demand intercepts the equation of supply, so the equilibrium quantity of labor is:

W_{Demand} = W_{Supply}

15 - (1/200) L = 5 + (1/200) L

15 - 5 =  (1/200) L +  (1/200) L

10 = (2/200) L

(10*200)/2 = L

1000 = L

Then, the equilibrium wage rate is calculated using either the equation of demand for labor or the equation of supply of labor. If we use the equation of demand for labor, we get:

W = 15 - (1/200) L

W = 15 - (1/200) 1000

W = 10

Finally, the equilibrium wage rate is 10 and the equilibrium quantity of labor is 1000 workers

7 0
3 years ago
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