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Tcecarenko [31]
3 years ago
14

A friend throws a heavy ball toward you while you are standing on smooth ice. you can either catch the ball or deflect it back t

oward your friend. what should you do in order to maximize your speed right after your interaction with the ball?
Physics
1 answer:
Rus_ich [418]3 years ago
6 0
Deflect it back toward your friend.
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A 150 N force acts on an object for five seconds in changes the objects velocity by 30 m/s. What is the mass of the object?
Vlada [557]

F=ma

150 N= ma

a= 30/5 = 6

150 = m6

m = 25 kg

6 0
3 years ago
Please help with questions 32-35, especially 34
DENIUS [597]
32. P = V * I

P = 230 * 4 = 920 w

In short, Your Answer would be: 920 w

33. I = P/V

I = 48/12 = 4 A

In short, Your Answer would be: 4 Ampere

34. Now, for this part you've given Voltage & Power, and you need to calculate Current & Resistance, so you could apply two equations here:

(i) For finding Current  = P/V
(ii) For resistance = V²/P

So, Current for Bulb of Study Lamp = 60/230 = 0.260 A
Resistance of Bulb of Study Lamp = 230²/60 = 881.67 Ohm

In similar manner, substitute the known values (Power & Voltage) in each case, you'll have your answers!

35. We know, P = V²/R
P = 230²/48
P = 1102.08 w

Hope this helps!
4 0
3 years ago
Read 2 more answers
Describe how the words Science and optics would appear when viewed in a plane mirror?
Gre4nikov [31]

Answer:

Lateral inversion will occur in a plane mirror.

Explanation:

When words are displayed in a plane or flat mirror, the result is that if the words are displayed left, they change to right and if they were normally displayed right, they change to left. This phenomenon is known as lateral inversion. So, this will apply to the words, Science and optics. Only the sides will be interchanged.

A plane mirror reflects light, therefore, the image that is produced by it remains the same size. The image produced will not appear upside down. Only the sides will be interchanged.

4 0
3 years ago
A certain satellite has a kinetic energy of 7.5 billion joules at perigee (closest to Earth) and 6.5 billion joules at apogee (f
Elena L [17]

Answer:

Work Done by the earth's gravitational force on the satellite as it travels from apogee to perigee is

W = F*D*Cos90° = 0

Explanation:

Although there is a change in the kinetic energy of the satellite at the apogee and perigee, the work done by the earth's gravitational force on the satellite is Zero.

W = F.D, F is the gravitational force, D is the displacement. Both F and D are vectors and perpendicular to each other. That is, the angle between F and D is 90°.

8 0
3 years ago
Suppose that two objects attract each other with a gravitational force of 32 Newtons. If the distance between the two objects is
jekas [21]

Answer:The answer is 8

Explanation:

5 0
3 years ago
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