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ValentinkaMS [17]
3 years ago
11

Science Net Forces. Could somebody help me?

Physics
1 answer:
tensa zangetsu [6.8K]3 years ago
7 0
2) Unbalanced. Mike will push the box with a force of 20 N. The forces would be balanced if the box responded with 30 N.

3) Balanced. Both boys are pulling with the same force. Neither is winning.

4) Unbalanced. The rope will move with 10 N to the west. The teachers are winning.

5) Unbalanced. The kids are pulling 220 N to the east. The kids are winning.

6) Balanced. You and the dog are pulling with the same force.
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The average distance from Earth to the Moon is 384,000 km.
Fofino [41]

Answers:

1) Time it takes to travel to the moon

Velocity V is defined as:

V=\frac{d}{t}

Where:

d=384,000 km is the average distance from Earth to the Moon

V=800 km/h is the velocity of the spacecraft

t the time

Isolating t:

t=\frac{d}{V}

t=\frac{384,000 km}{800 km/h}

t=480 h This is the time in hours

2) Time in days

A day is equivalent to 24 hours:

1 day= 24 h

Hence:

t=480 h (\frac{1 day}{24 h})

t=480 h (\frac{1 day}{24 h})=20 days This is the time in days

3) Time in months

A month is equivalent to 30.4 days:

1 month= 30.4 days

Hence:

t=480 h (\frac{1 day}{24 h})

t=20 days (\frac{1 month}{30.4 days})=0.65 months This is the time in months

6 0
3 years ago
A helicopter's speed increases
sergij07 [2.7K]

Answer:

the helis speed increased its speed by 35 m/s. Unless you are asking me what was the speed per second. if you were asking me for the speed per second then that would be a different answer

Explanation:

7 0
3 years ago
What wave on the electromagnetic spectrum has the highest frequency?
Jet001 [13]

Answer:

Explanation:

Answer: Gamma rays

Gamma rays have the highest frequency.

What is an electromagnetic wave?

An electromagnetic wave requires no medium for its propagation.

It consists of a spectrum of different wavelengths.

Different wavelengths of rays have different energies and different frequencies.

Higher frequency rays have the highest energies.

What is gamma-ray?

These are ionized radiations.

Gamma radiations are obtained from the decay of the atomic nucleus.

It has the highest frequency which is why it can penetrate through matter.

It has the smallest wavelength and highest energy.

The frequency of gamma rays is more than 10^19 cycles per second and wavelength less than 100 picometers.

6 0
2 years ago
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a water pump takes water through 12m. Water is discharged at the surface at the rate of 2Kg/s, and the discharge speed of each d
pickupchik [31]

Answer:

45

Explanation:

3 0
3 years ago
The frequency of a wave remains constant if the medium, temperature, and pressure do not change.
Shalnov [3]

Trueeeeeee

The frequency of a wave remains constant if the medium, temperature, and pressure do not change.

7 0
3 years ago
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