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AnnZ [28]
3 years ago
10

What is the difference in force of a car and a tractor

Physics
1 answer:
vodka [1.7K]3 years ago
6 0

Answer:

See a tractor is more slow but has a greater force and a car is fast but has a slower force

Explanation:

so your answer is Tractors have more force then cars

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You are on vacation in San Francisco and decide to take a cable car to see the city. A 5800-kgkg cable car goes 260 mm up a hill
Stella [2.4K]

Answer:

4.325\times10^6J

Explanation:

Mass of the cable car, m = 5800 kg

It goes 260 m up a hill, along a slope of \theta=17^o

Therefore vertical elevation of the car = 260sin\theta=260sin17^o=76.0166m

Now, when you get into the cable car, it's velocity is zero, that is, initial kinetic energy is zero (since K.E. = \frac{1}{2} mv^2). Similarly as the car reaches the top, it halts and hence final kinetic energy is zero.

Therefore the only possible change in the cable car system is the change in it's gravitational potential energy.

Hence, total change in energy = mgh = 5800\times9.81\times76.0166J=4.325\times10^6J

where, g = acceleration due to gravity

h = height/vertical elevation

4 0
3 years ago
An infrared wave has a wavelength of 6.5 × 10–4 cm. what is this distance in angstroms, å?
Citrus2011 [14]
1 angstrom = 10^-8 cm 
6.5 x 10-4 cm  = 65 000 x 10-8 cm = 65 000 angstroms 
answer 65 000 angstroms
7 0
3 years ago
Read 2 more answers
Urgent!!!! Timed quiz. Calculate the velocity of the pink car.
dem82 [27]

Answer:

Option A

20 m/s

Explanation:

From the law of conservation of linear momentum, the sum of momentum before and after collision equals zero hence for this case also, the sum of momentum of the two cars before collision should be equal to momentum after collision.

Momentum is given as the product of mass and velocity, where velocity considers the direction. Momentum, p=mv where m is the mass of the object and v is the velocity.

Momentum before collision

Since the velocities of both cars before collision are zero hence their momentum are zero ie 0.5*0+(1*0)=0

Momentum after collision

For 0.5 Kg car, its momentum will be 0.5*-40=-20 Kg.m/s

For the 1 kg car its momentum will be 1*v=1v

v-20=0

v=20 m/s

3 0
3 years ago
The rotational inertia of a collapsing spinning star changes to 1/6 its initial value. What is the ratio of the new rotational k
storchak [24]

Answer:

Explanation:

Let the initial rotational inertia be I and final rotational inertia be I / 6 .

Let the initial angular velocity be ω₁ and final angular velocity be ω₂.

Applying conservation of angular momentum law

I x ω₁ = I / 6 x ω₂

6 ω₁  = ω₂

initial rotational kinetic energy = 1/2 I x ω₁ ²

Final  rotational kinetic energy = 1/2 ( I / 6 ) x ω₂ ²

Final  rotational kinetic energy / initial rotational kinetic energy

= ( 1 / 6 ) x ω₂ ² / ω₁ ²

=  ω₂ ² / 6ω₁ ²

= 36 ω₁ ² / 6ω₁ ²

= 6 .

6 0
3 years ago
What is the momentum of a helicopter of mass 200 kg moving with a speed of 3 m/s?
omeli [17]

Answer: 600

200 times 3 = 600

7 0
3 years ago
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