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amid [387]
3 years ago
7

A 4.0 kilogram train going right at 6.0 meters per second bumps into a toy wagon moving the same direction at 2.0 meters per sec

ond. The model train has a final speed of 4.8 meters per second, and the wagon has a final speed of 5.2 meters per second. WHAT IS THE MASS OF THE WAGON? round answer to two significant digits.

Physics
1 answer:
aliya0001 [1]3 years ago
5 0

Answer: 1.5kg

Explanation:

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Which box has a larger upward force (normal force) acting on it?
andrezito [222]

Answer:

c

Explanation:

I makes the most sense in math. if you put a 3 in the m box it will be the same. So all they did is take out the 3 in the m box

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2 years ago
1. An electric lamp a marked 240V, 6A. What
Annette [7]

Answer:

The resistance of the lamp is 4Ω.

Explanation:

You have to apply voltage formula :

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R = 240 ÷ 60

R = 4 Ω

8 0
2 years ago
You are training a classification model with logistic regression.
aalyn [17]

Answer:

B) Adding many new features to the model makes it more likely to over fit the training set.

Explanation:

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5 0
3 years ago
Read 2 more answers
A proton moving with a speed of 200 m/s enters perpendicular to the direction of the magnetic field and experiences a force of 2
lesya692 [45]

Answer:

0.0625 T

Explanation:

When a charged particle is moving in a region with a magnetic field, the particle experiences a force given by the equation

F=qvB sin \theta

where

q is the charge of the particle

v is its velocity

B is the magnitude of the magnetic field

\theta is the angle between the direction of the velocity and of the field

For the proton in this problem, we have:

F=2.0\cdot 10^{-18}N is the force experienced

q=1.6\cdot 10^{-19}C is the charge of the proton

v=200 m/s is its velocity

\theta=90^{\circ}, since the proton enters the region perpendicular to the magnetic field

Therefore, we can re-arrange the equation to find B:

B=\frac{F}{qvsin \theta}=\frac{2\cdot 10^{-18}}{(1.6\cdot 10^{-19})(200)(sin 90^{\circ})}=0.0625 T

5 0
3 years ago
The lens in the eyepiece of a telescope magnifies light by bending it. What is this bending called?
sveta [45]
The bending of light inside the lens of the eyepiece in a telescope refers to the phenomenon named "refraction." Refraction is the bending of light as it passes from one medium to another medium. For instance, when we place a pencil inside a glass of water, we see it bends because the light travels much slower in water than in air.
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2 years ago
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